ADDENDUM #03 TO

INVITATION TO BID #01

July 17, 2018

Renovations & Addition

To

James Blackstone Memorial Library

758 Main Street, Branford, CT

The Contract Documents for this Invitation to Bid are modified and/or supplemented as follows and should be

included in the Subcontractor’s lump sum bid as it relates to their Bid Package Scope of Work:

1. All bidders should note, at the request of the town the bid date has been POSTPONED UNTIL TUESDAY,

JULY 24, 2018 at 2:00 PM. Bids will be received in the Basement Conference Room at Branford Town Hall.

2. Bids will be opened and publicly read aloud at the Branford Fire Department, 45 N Main Street, Branford,

CT starting at 2:30PM.

3. All bidders will incorporate the attached Bid RFI questions with answers.

4. Silver / Petrucelli + Associates – Addendum #3

5. Silver / Petrucelli + Associates – Revised Drawings

a. A500 Wall Sections

b. A501 Wall Sections

c. A502 Wall Sections

d. A503 Wall Sections

e. A504 Wall Sections

f. A505 Guardrail Details

g. S500 General Notes

h. A901 Door / Window Schedule & Door Details

6. Silver / Petrucelli + Associates – Revised Specification Sections

a. 05 40 00 Cold Formed Metal Framing

b. 07 13 54 Rubberized-Asphalt Sheet Waterproofing

c. 07 53 23 Ethylene-Propylene-Diene-Monomer (EPDM) Roofing

d. E102 Electrical First Floor Plan – Lighting & Power

END ADDENDUM #03 TO INVITATION TO BID #01

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

1 HM Doors and FramesWhat Bid Package owns Sections 08 12 13 and 08 41 23 Fire

Rated SystemsDCC

Furnished by Bid Package 8.1 Doors Frames and

Hardware, installed by Bid Package 9.1 Drywall and

Plaster

2 Glass/GlazingA901 Window Types W5 &W6 are interior frames. Please

advise frame and glass typeSPA

5/4” hardwood frame sim to detail 3/A900 with GL-2

glazing

3 Glass/Glazing Please advise the extent of the mock-up SPA24” square mockup showing all typical connections and

overall finished appearance

4 Metals/Glass/GlazingPlease advise if the Enduroshield glass coating shown on

088000 2.4 (D) is required. It is not mentioned in the GL-10 make up.SPA Provide coating to GL-5, exterior guardrail glazing

5Doors/Fms/Hdwr /

Glass/GlazingPlease confirm aluminum door hardware is done by others DCC

Aluminum door hardware is furnish and installed by

package 8.2 Glass & Glazing. Locking cylinders as

scheduled are furnished by package 8.1.

6 Glass/GlazingRE Section 088000: is there a BOD for the Low E coating on

the type GL-10 Insulated glass?SPA No

7 Glass/GlazingWhat is the material between the W4 curtainwall windows on

elevation 3 on A300SPA Aluminum by window manuf.

8 Glass/GlazingIs all the glass in W1-W8 GL-10. Glass type is not being

called out anywhere.SPA

1. No, W1 through to W4, W7 & W8 exterior units require

the insulated GL-10. W5 & W6 require GL-2

9Doors/Fms/Hdwr /

Glass/Glazing

Please confirm the glazing for Wood Doors and Hollow Metal

Borrowed Lites is under package 8.2.DCC

Door glazing is furnish and installed by contractor providing

said door.

10 Metals/Glass/GlazingPlease confirm the mezzanine glazing (alternate) and tech

services glazing is under package 8.2.DCC Confirmed

11 Metals/Glass/GlazingPlease confirm the glass for the guardrail IS NOT under

package 8.2.DCC Confirmed, glass for guardrail is by package 5.1

12 Glass/GlazingWhat alternate number should the mezzanine glazing be

submitted under.DCC See Alternate Schedule Provided

13 Glass/GlazingPlease confirm the reason for Curtain Wall. The openings, in

conjunction with the design spec listed in the structural

drawings, seem to load out as storefront.

SPA Spec is correct.

14 Glass/GlazingGiven the proximity to the ocean, should the glass be

impacted rated? If yes, please revise the specification.SPA

Glazing is impact rated per spec in applicable locations.

Revised: Impact rated glazing is not applicable for this

project's location.

15 Glass/GlazingPlease provide a detail between the entrances (G100/G101)

and the W3 frames.SPA See revised A901.

16Doors/Fms/Hdwr /

Glass/Glazing

Please confirm frames W5 & W6 are hollow metal and not

aluminum.SPA These frames are hardwood. Sim to detail 3/A900.

RFI Log

Prebid - Volume 1 RFI Log 1 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

17 RoofingWhat bid package is responsible for specification section 07

42 13 Formed Metal Roof and Wall Panel?DCC Package 7.1 Roofing

18 Masonry / DrywallWithin the 3" cavity wall, similar to 3/A500, is the rigid

insulation by package 4.1 or 9.1?DCC

Rigid insulation within the cavity is furnish and installed by

package 4.1 Masonry

19 General TradesPackage 10.1 notes 14 20 00 Elevator Rehabilitation per the

scope of work in the Owner's Summary document. DCC Consultant Review Pending

20 RoofingWho owns specification section 074213.13 Formed Metal

Roof & Wall Panels?DCC Package 7.1 Roofing

21 RoofingWill specification section 074213.13 Formed Metal Roof &

Wall Panels, or 076100 Sheet Metal Roofing be used for the

addition vestibule flat-seam copper roof, fascia & soffit work?

SPA 074213.13 Formed Metal Roof & Wall Panels

22 Roofing & MasonryWho is responsible for the copper through-wall, or pan

flashing beneath the coping stones on the new addition? Ref

1/A506.

DCC BP#4.1 Masonry

23 Roofing

Please clarify the new addition roof/waterproofing system

assemblies. Drawing A500 calls for the fleece-back EPDM

roof/waterproof system to be adhered to ½” drainage mat,

4” min insulation (rigid per spec 072100) and ¾”

coverboard. This assembly as drawn and specified is not

achievable. Detail 3/A501 calls for a typical EPDM roof

assembly between the Vestibule & lobby, but a 2” min

tapered system does not meet state code requirements for R-

value. Also, there is no specification section for EPDM roofing

as detailed. Lastly, the new membrane roofing system

sandwiched between concrete deck & stair slabs as shown on

A504 cannot be tie into the paver assembly system called

out on A500. Please advise.

SPA

System is fleece backed EPDM adhered to conc. Deck.

Drainage board, insulation, protection board, and pedestal

paver system for deck & stair per specs and drawings. R value

at link achieves code compliance with R38 batt insulation below

deck.

24 RoofingPlease confirm that there is no abatement removals scope of

work within the BP #7.1 scope of work. The hazardous

materials reports list roofing items as asbestos containing.

SPAThe roofing is listed as "suspect", but was not test nor

confirmed.

25 Roofing

Will the alternate #3 dome fluid applied roofing have a standard

color, or custom color? Custom color materials have minimum order

requirements that can severely impact lead time and cost.

SPA Standard color / manufacturers full range per spec

Prebid - Volume 1 RFI Log 2 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

26 Paint

Painting bid package # 9.4 includes Staining and Transparent finishes

under spec section 099300. All wood doors per spec 081416 &

081433 are factory finished. Spec 099300 item 1.2.A calls for surface

preparation and application of wood finishes, item # 2.2.D of same

spec 099300 calls for colors for WB-2 & WD-1. It seems that wood

base WB-2 & WD-1 are factory finished. Please confirm which item is

to finished in field under spec section 099300.

SPA Field finish WB-2 and WD-1 by BP#9.4, stained red oak.

27 Glass/Glazing

Section 084213-2.2-A Indicates the basis of design as “EFCO

Corporation: Series D518 Durastile” while section 084213-2.3-A-1-a

describes an EFCO Corporation: D502 ThermaStile” entrance. Please

confirm which we are to utilize.

SPA Series D502 Thermastile

30Glass/Glazing &

MasonryDoes BP 8.2 own the copper sill flashing depicted on 6/A506? DCC Sill flashing by BP#4.1 Masonry.

28 Metals

Guardrail 2/A505: Standard aluminum glazing channels are 4 1/8"

high versus 4 3/4" as shown. Also standard channels will only accept

1/2" or 3/4" thick glass. Can standard materials be substituted for

materials shown?

SPANo, design shall remain unchanged. CR Laurence L25S

was basis of design.

29 MetalsWill 2" clearance be adequate to install the stone coping after

the guardrail has been installed?DCC Guardrail should be installed after masonry

30 Flooring

Room 200 is shown on the finish schedule drawing A930 as CPT-1.

However, it is shown on the Finish Plan drawing A-232 as CPT-3.

Which is correct?

SPA CPT-3 is correct

31 Flooring

In the Bid Package #9.3 Flooring, page 7, alternate 7 there

is a requirement for moisture mitigation. Is this to be used

across the entire ground floor or only where new slab infill is

being installed?

DCC No moisture mitigation required.

32 Flooring Confirm what materials if any are to be installed on the set of stairs

from the Ground floor room G111 to the Mezzanine room 112.

SPA Existing to Remain

33 Masonry

Ref. Wall Section 3/A500: The description of the TYPICAL

WALL CONSTRUCTION (8” CMU – 3” Mortar Filled Cavity – 6”

CMU…) does not match the wall section which indicates an

8” CMU and there is neither mortar fill in the cavity nor 6”

CMU. Which is correct?

SPATypical exterior wall is 8" cmu/mortar filled. Exterior walls below

windows have 6" cmu/mortar filled.

Prebid - Volume 1 RFI Log 3 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

34 General TradesPlease confirm that the spec “07 84 13 Joint Sealants*” in

the work scope for package 10.1 General Trades actually

refers to spec section “07 92 00 Joint Sealants*”.

DCC Confirmed

35 General Trades

Please confirm that the spec “10 21 13 Solid Surface Toilet

Compartments” in the work scope for package 10.1 General

Trades actually refers to spec section “10 21 13.20 Solid

Surface Toilet Compartments”.

DCC Confirmed

36 General TradesPlease confirm the manufacturer of the elevator that is to be

refurbished.DCC Schindler - see Elevator Report in Add. #2.

37 Roofing / Landscape

What bid package has responsibility for PRECAST STONE

PLANTERS, TYP. Of (4) ? How are they supported on the roof below?

Please provide details and a specification.

DCC

Planters are off the shelf item. Planters sit on top of

pedestal pavers, no additional support is required.

Planters by BP#32.1 Landscape.

38 Drywall & Plaster

During the walkthrough it was noted that there was some

areas behind the stage in one of the storage rooms that had

water damage. There is no indication on the current

document for repair of this damage. Can you please

confirm that we are only to include patching and or work at

the locations indicated on the drawings?

DCC

Carry an allowance of 250 square feet of plaster patch for

the exterior wall damage in the room east of the stage, in

addition to the other allowances for MEP patching noted

elsewhere.

39 Drywall & Plaster

RCP A200 for the ground floor notes exposed structure at

mechanical space room G105. Sections 4 &6/A302 and

detail 2/A504 indicate drywall and rigid insulation at this

location. Please confirm we are to install drywall and rigid

insulation per the details.

DCCProvide drywall and insulation per wall sections and notes

on Drawing A504.

40 Drywall & Plaster

Please provide additional information on the dimensioning of

this space as the enlarged plan A402 cuts this area off. And

drawing A401 does not provide partition types. Drawing

A504 appears to show a knee wall below the drywall

underside of structure.

SPAMechanical room G105 is defined by the existing building and

the new walls which are dimensioned.

41 Drywall & Plaster

Drawing section 1/A502 at the interior notes to refinish new

5/8” ptd gwb throughout tech services and adult fiction. The

enlarged plan for tech services A731 and drawing A401 does

not indicate any work occurring inside of tech services with

the exception of the wall between tech services and adult

fiction and the ceiling. There are notes for new sheathing in

the fiction G107 space. Please confirm the requirements.

SPA

Existing gwb wall finish shall be patched/re-sheathed for a

smooth contiguous surface throughout new stack area and tech

services.

Prebid - Volume 1 RFI Log 4 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

42 Drywall & Plaster

Also section 7/A302 is indicating what appears to be a soffit

on either side of the tech services space. The rcp on A200

does not indicate the materials of the ceilings in the tech

services or fiction room. The finish legend only notes ACT 1.

Please confirm if the perimeter soffits in these rooms are

new drywall and the requirements for these soffits. The

section appears to show the soffit at 10’6” and act @ 8’6”

but at the tech room the rcp notes the ceiling heights to be

8’6” and 8’8” and no height at the other soffit.

SPA

New construction soffits are 5/8" painted GWB. East soffit in

tech services is 8'-6". West soffit in tech services is 10'-6" with a

8'-8" ACT between them both.

43 Drywall & Plaster

On drawing A200 in the mezzanine space there is a note for

a bid alternate of a new window wall and associated

mechanical improvements. There is also a note 3 indicated

for this space which corresponds with patching for

mechanical work. Can you please confirm that the only

patch requirements in this space would occur under the bid

alternate #1 and that there is no base bid work in this areas.

Also please confirm how to quantify patching for mechanical

work.

DCCConfirmed, quantity of patching identified on drawings, bid

package scope of work and other RFI responses.

44 Drywall & Plaster

Also in reference to alternates. Alternate #2 references

auditorium ceiling painting drawing A200 indicates ceiling

painting and plaster repair. There is no reference to plaster

repair in the alternate description. During the walk through

there were a few minor cracks noted and some voids noted

that appeared to be intentional. Can you please confirm

what if any requirements there are for plaster patching at

the auditorium under alternate 2.

SPA

Per revised Section 012300 of Addendum #1, Alternate #2 is for

roofing work. Alternate #5 is for auditorium improvements.

Assume twenty (20) plaster coffers requiring repair with a unit

price for additional coffers.

45 Drywall & PlasterThere is exterior light gauge metal framing for the new

addition. I am not seeing a specification section for this

material. Please provide specification or requirements.

SPA Section 054000 to be provided in Addendum #3.

46 Doors/Fms/HdwrHardware spec calls for both mortise and cylindrical locks.

Which ones are to provide?

Provide mortised locksets at all locations. Current product

at the building is Schlage mortised lockset with lever

hardware.

47 Doors/Fms/Hdwr What is the Library's current keying system? DCC Simple master key cylinder lock.

48 Door/Fms/Hdwr

Please advise finish required for closers? There is a note in

the spec about the finish being 609 for brass base items and

638 for steel base to match existing. In the closer section

they don’t mention anything about the closers being plated.

Please advise if closers need to be plated.

SPA

Closers do not need to be plated. Provide with LCN

standard STAT Statuary Bronze finish (BHMA 690).

Prebid - Volume 1 RFI Log 5 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

49 General Trades

Are all windows to receive shades or only the windows that

are not gray? If only doing locations that are not grayed out

on the drawings, on A100 in Fiction G107 there is a single

window not in gray but the other 4 in the room are gray, do

all of these receive shades? Does the window wall dividing

G107/G106 get shades?

DCCProvide window shades at locations noted in Finished

Schedule 09 00 00 Page 11, but omit reference to doors.

50 Roofing

The following is a request for information regarding the 20

oz. Verdigris pre-patinated copper that is specified on the

drawings for use on the flat seam copper panels as well as

the half round gutter & leader. This copper product is

specified in Section 074213.13 Formed Metal Roofing & Wall

Panels. In researching the three manufacturers specified, I

find that two of them are simply contracting firms, not

factory fabrication firms, and the other does not offer any

such product. Further research yields that typical copper

sheet suppliers such as Revere Copper & Hussey Metals no

longer offer such pre-patinated copper products of any kind.

I did find one manufacturer that offers a Verdigris copper sheet, but

it is only available in 3’ x 4’ sheets and is not of sufficient gauge to be

used here. However, I do find that Specification Section 076100 Sheet

Metal Roofing calls for the use of a non-patinated 20 oz. cold rolled

copper product with the Revere and Hussey companies listed as the

manufacturers of same. Therefore, I am asking for clarification of the

copper that is required for use on the project. Please review and

advise at your very earliest convenience to that I know how to

proceed.

SPA Bright copper/non-pre-patinated is acceptable.

51 LandscapeDo you have any photos of the two trees to be transplanted

(Magnolia and Witch Hazel)?DCC Photos will be provided.

52 LandscapeDo you have a spec. on the proposed mahogany bench?

manufacturer, model #, size?SPA Bench is to match existing as indicated.

53 LandscapeDo you have a spec. on the proposed bike rack?

manufacturer, model #, size?SPA Bike rack is reused existing per plan.

54 LandscapeCan you clarify the topsoil. All topsoil will be furnished and

installed by the site work contractor?, correct. We (landscape

contractor) will sign off and accept the rough grade.

DCCCorrect, BP 31.1 will furnish and install the topsoil. BP 32.1

will fine grade and finish.

Prebid - Volume 1 RFI Log 6 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

55Plumbing / HVAC /

ElectricalPlease clarify permit fees, are they waived? DCC Permit fees have not been waived by the town.

56 MetalsPlease clarify, what bid package is responsible for the angles

at lobby benches per A506?DCC BP #5.1 is to furnish the angles for lobby benches

57 FlooringIs room 200 CPT-3 per finish plan A232 or CPT-1 per the

Finish schedule on A930?SPA Refer to Item #30 above.

58 FlooringDoes room G116 have ETR base per finish plan A230 or RB-1

per the Finish schedule on A930?SPA G116 to have RB-1 per finish schedule on A930.

59 FlooringDoes room G111 have ETR base per finish plan A230 or RB-1

per the Finish schedule on A930?SPA G111 to have RB-1 per finish schedule on A930.

60 FlooringDoes room G114 have WB-1 base per finish plan A230 or RB-

1 per the Finish schedule on A930?SPA G114 to have RB-1 per finish schedule on A930.

61 Are Bid Bonds required for this project? DCCLetters of Surety are adequate, Bid Bonds are not required

with submission of bids.

62 Arch Woodwork

The tackable surface TB-1(Forbo) is in section 10 11 00

which is not part of bid package #6.1; however the material

is used on the interior of the transaction top for the youth

service desk. Are we responsible for the material in that

location and if so are we carrying that material everywhere it

exists?

DCCBP #6.1 is responsible for all items attached to

architectural millwork.

63 Arch WoodworkWho is carrying the cable suspended acrylic brochure racks

in the gallery A732/8?DCC Provided by Owner, Excluded from BP #6.1

64 Arch Woodwork

Please clarify the spec for the locks on the plastic laminate

lockers. Digilocks are surface mounted locks with

programmable combinations that include a latching

mechanism; however the spec appears to also call out a

recessed door handle with single-point latch and padlock

loop? That seems redundant; also the number DK-APS is too

generic.

SPA

Digilocks are for the 5% of lockers that are required to be

handicap accessible. The remaining lockers are to receive the

single-point latch.

65 Arch WoodworkCan melamine be used on the surfaces of cabinet interiors

that are behind doors (semi-concealed) in lieu of plastic

laminate?

SPA No

66 Roofing

Specs section 011353-page 3 – paragraph 2.2. A - Sheet

waterproofing basic design is Carlisle FleeceBack 145

membrane, and optional manufacturers listed par. 2.2.A.2

Firestone and Manville, both of them do not have fleece back

membrane. Please provide which membrane from those

manufacturers will be accepted.

SPA

Section 071353 will be replaced by 071354 in Addendum #3.

See new specification for terrace and elevated exterior stair

waterproofing system. New system will be a COLD

RUBBERIZED ASPHALT SHEET WATERPROOFING.

67 RoofingSpecs section 011353-4 par. 2.5.A Insulation panel refers to

section 072100 “thermal Insulation” which product from that

section we are using?

SPA Extruded polystyrene board.

Prebid - Volume 1 RFI Log 7 of 8 Downes Construction

7/17/2018

Blackstone Memorial Library

Main Street, Branford, CT

Item

No.Discipline Item / Description Ball in Court Response Comments

RFI Log

68 RoofingSpecs section 011353 describes installation membrane direct

to concrete then drainage panels, then insulationSPA Section 071353 will be replaced by 071354 per Addendum #3.

a. Details 2/A504 asking for 3” rigid insulation (no rigid

insulation specify), SPA

Extruded polystyrene board (rigid) as indicated in Section

072100.

b. Detail 1/A503 asking for rigid insulation (no rigid

insulation specified)SPA Refer to Item #68a above.

c. Detail 2/A503 looks like membrane is over insulation, SPA No

d. Details 5/A502 & 3/A501 describe assembly as

concrete deck-adhered membrane-.5”drainage mat-x”

min taper insulation (over the membrane?) - cover board

(no cover board specified, over the membrane?). Also

coverboard connot be exposed to weather.

SPASee revised specification section for terrace and elevated

exterior stair waterproofing system.

e. Expansion joint detail 1/A500 describes assembly as

membrane over concrete deck and shows membrane

over the expansion joint, please clarify composition

SPAMembrane flashing extends over expansion joint backer rod and

up wall to counterflashed reglet.

69 General TradesConfirm that the project Trailer cleaning (ands/w of

trailer)??? is not part of our work scope.DCC

Cleaning is a man hour allownace to be used at the

discression of Downes Construction.

70 General TradesThere are multiple phases. Is Final Cleaning at the end of

each phase or at the end of the entire project?DCC

Final cleaning is required as phases are completed for

turnover to the owner.

71 General TradesDo the windows tilt for exterior cleaning from the inside or

will an exterior lift be required?DCC Windows do not tilt

72 General TradesIs it correct to assume that all existing and new windows,

including rotunda, need to be cleaned throughout the

building?

DCCBP #10.1 is responsible for interior window cleaning

throughout and exterior of new windows only.

73 General TradesConfirm that existing and new VCT and sheet good floors

under this bid package require no stripping and waxing.DCC Confirmed

Prebid - Volume 1 RFI Log 8 of 8 Downes Construction

ADDENDUM #3

James Blackstone Memorial Library Renovations & Addition – Branford Addendum #3-1

RENOVATIONS & ADDITION JAMES BLACKSTONE MEMORIAL LIBRARY 758 MAIN STREET BRANFORD, CT 06405 S/P+A PROJECT NO. 16.108 DATE: July 17, 2018 The following changes to the Drawings and Project Specifications shall become a part of the Drawings and Project Specifications; superseding previously issued Drawings and Project Specifications to the extent modified by Addendum No. 3.

Changes to the Addenda:

ADDENDUM #2, Changes to the Drawings, the following ARCHITECTURAL drawings are being deleted in their entirety. New drawings (3) have been added and are attached as part of this addendum.*

o A500-A501 WALL SECTIONS o A901 DOOR/WINDOW SCHEDULE & DOOR DETAILS

New Specifications:

The following sections have been added and are attached as part of this addendum:

o SECTION 054000, COLD-FORMED METAL FRAMING (9) o SECTION 071354, RUBBERIZED-ASPHALT SHEET WATERPROOFING (7) o SECTION 075323, ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING (9)

Changes to the Specifications:

TABLE OF CONTENTS, Page 2:

o Division 05 – Metals, add the following:

“Section 054000 Cold-Formed Metal Framing 9”

o Division 07 – Thermal and Moisture Protection:

Section 071353, delete in its entirety. Section 071416, delete “/Roofing” in its entirety. Add the following:

“Section 071354 Rubberized-Asphalt Sheet Waterproofing 7 Section 075323 Ethylene-Propylene-Diene-Monomer (EPDM) Roofing 9”

SECTION 071353, ELASTOMERIC SHEET WATERPROOFING has been deleted in its entirety.

ADDENDUM #3

James Blackstone Memorial Library Renovations & Addition – Branford Addendum #3-2

SECTION 084413, GLAZED ALUMINUM CURTAIN WALLS, Page 6, Article 2.6, add the following:

“E. Closure Plates: Manufacturer’s extruded- or formed-aluminum plates, 0.125-inch-thick, to match adjacent finish.”

Changes to the Drawings:

The following ARCHITECTURAL drawings are being deleted in their entirety. New drawings (4) have been added and are attached as part of this addendum*:

o A502-A504 WALL SECTIONS o A505 GUARDRAIL DETAILS

DRAWING S500, GENERAL NOTES has been deleted in its entirety. A new DRAWING S500, has been added and is attached as part of this addendum*.

End of Addendum ‘3’

A500Wall Sections

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

A501Wall Sections

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

A901Door / Window Sched.& Door Details

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

A502Wall Sections

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

A503Wall Sections

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

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Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

A504Wall Sections

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Project Number:

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Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

A505Guardrail Details

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

GENERAL NOTES

GENERAL

GOVERNING CODE: 2016 CONNECTICUT STATE BUILDING CODE, (2012 INTERNATIONALBUILDING CODE).

DESIGN LOADS: TOWN OF BRANFORD

MINIMUM LIVE LOADS: LOBBY 100 PSFEXTERIOR TERRACE: 100 PSFPARTITIONS: 15 PSFOFFICES: 50 PSF

ROOF LOAD:

ROOF SNOW LOAD CRITERIA: Pg = 30 PSF, Ce = 0.9 AND Is = 1.0, Ct= 1.0 WITHINCREASES FOR SNOW DRIFTING, UNBALANCES AND SLIDING PER SECTION1608 (2012 IBC).

MINIMUM ROOF LIVE LOAD = 30 PSF

ROOF DEAD LOAD = 20 PSF

WIND LOAD CRITERIA: SECTION 1609 (2012 IBC)ULTIMATE WIND SPEED VU = 130 MPHNOMINAL DESIGN WIND VASD = 101 MPHRISK CATEGORY II, Iw = 1.0EXPOSURE CLASSIFICATION "B".

MINIMUM WIND LOAD ON PRIMARY STRUCTURE = 15 PSF

WIND LOADS ON SECONDARY ELEMENTS SHALL CONFORM WITH ASCE 7-10.

TYPICAL WIND LOAD ON EXTERIOR WALLS = PER ASCE 7-10MAXIMUM WIND LOAD AT CORNERS = PER ASCE 7-10NET WIND UPLIFT ON ROOFS = PER ASCE 7-10NET WIND UPLIFT AT OVERHANGS = PER ASCE 7-10

SEISMIC LOAD CRITERIA: AS PER SECTION 1613 (2012 IBC) WITH:RISK CATEGORY = IIISEISMIC IMPORTANCE FACTOR, Ie = 1.0Ss = 0.180g, S1 = 0.061gSOIL SITE CLASS = DSPECTRAL RESPONSE COEFFICIENTS, Sds = 0.XXXG, Sd1 = 0.XXXgSEISMIC DESIGN CATEGORY, BBASIC SEISMIC-FORCE-RESISTING SYSTEM:DESIGN BASE SHEAR, V = 0.054WRESPONSE MODIFICATION FACTOR, R = 6.5ANALYSIS PROCEDURE USED: SIMPLIFIED ANALYSIS

ASSUMED BEARING PRESSURE ON UNDISTURBED SOIL:TBDASSUMED BEARING PRESSURE ON COMPACTED FILL: TBD

1. SHOULD ANY OF THE DETAILED INSTRUCTIONS SHOWN ON THE PLANS CONFLICTWITH THE GENERAL STRUCTURAL NOTES, THE SPECIFICATIONS, OR WITH EACHOTHER, THE STRICTEST PROVISION SHALL GOVERN.

2. THE STRUCTURE IS DESIGNED TO BE SELF_SUPPORTING AND STABLE AFTER THEBUILDING IS FULLY COMPLETED. IT IS THE CONTRACTOR'S SOLE RESPONSIBILITY TODETERMINE ERECTION PROCEDURE AND SEQUENCE AND TO INSURE THE SAFETY OFTHE BUILDING AND ITS COMPONENT PARTS DURING ERECTION. THIS INCLUDES THEADDITION OF WHATEVER SHORING, SHEETING, TEMPORARY BRACING, GUYS ORTIEDOWNS WHICH MIGHT BE NECESSARY. SUCH MATERIAL SHALL REMAIN THECONTRACTOR'S PROPERTY AFTER COMPLETION OF THE PROJECT.

3. LOADS, OPENINGS AND STRUCTURE IN ANY WAY RELATED TO REQUIREMENTS OFOTHER (NON-STRUCTURAL) DISCIPLINES ARE SHOWN FOR BIDDING PURPOSESONLY. THE CONTRACTOR SHALL OBTAIN FROM THE HEATING AND VENTILATING,ELECTRICAL, PLUMBING AND OTHER SUBCONTRACTORS THE FINAL APPROVED SIZEAND LOCATION OF ALL OPENINGS AND WORK TO BE PROVIDED FOR THEIR TRADE INROOFS, FLOORS AND WALLS, WHETHER SHOWN OR NOT SHOWN ON STRUCTURALDRAWINGS. CONTRACTOR SHALL BE RESPONSIBLE FOR TRANSMISSION OFREQUIREMENTS, LOCATIONS AND DETAILS TO STRUCTURAL SUBCONTRACTORS.EXCESS COST RELATED TO VARIATION IN MECHANICAL REQUIREMENTS ARE NOT TOBE BORNE BY THE OWNER.

4. IT IS THE CONTRACTOR'S SOLE RESPONSIBILITY TO FOLLOW ALL APPLICABLE SAFETYCODES AND REGULATIONS DURING ALL PHASES OF CONSTRUCTION.

5. SHOP DRAWINGS ARE TO BE CHECKED BY THE CONTRACTOR AND SUBCONTRACTORAND BEAR CHECKER'S INITIALS BEFORE BEING SUBMITTED TO THE ARCHITECT FORAPPROVAL.

6. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS, ANGLES ANDEXISTING CONDITIONS BEFORE PROCEEDING WITH ANY WORK.

7. ALL SECTIONS AND DETAILS SHALL BE CONSIDERED TYPICAL AND APPLY FOR THESAME AND SIMILAR SITUATIONS THROUGHOUT THE BUILDING, UNLESS OTHERWISESPECIFICALLY NOTED.

8. CONTRACTOR SHALL REVIEW ALL ARCHITECTURAL AND STRUCTURAL DRAWINGSPRIOR TO SUBMITTING THEIR BID FOR REFERENCE TO ALL NOTES ONARCHITECTURAL DRAWINGS REFERRING TO SEE STRUCTURAL DRAWINGS. IF THESIZE OF ELEMENTS AND DETAILING OF MEMBERS IS NOT INDICATED, THECONTRACTOR SHALL CONTACT THE ARCHITECT TO REQUEST THE MISSINGINFORMATION IN PREPARATION OF THEIR BID. THESE REFERENCED ITEMS SHALL BEPART OF THE BASE BID.

9. IN CASES OF DISCREPANCIES BETWEEN CONTRACT DOCUMENTS AND SUBMITTEDSHOP DRAWINGS, THE CONTRACT DOCUMENTS SHALL GOVERN INSTALLATION OFMATERIALS.

FOUNDATIONS

1. BACKFILLING SHALL BE ACCOMPLISHED TO EQUAL HEIGHTS ON BOTH SIDES OFFOUNDATION WALLS TO PREVENT MOVEMENTS DUE TO UNBALANCED EARTHPRESSURE. WHERE EARTH IS ON ONE SIDE ONLY, BACKFILLING AND COMPACTIONSHALL NOT START UNTIL FLOOR SLAB OR ADEQUATE BRACING IS PROVIDED FORWALL SUPPORT (EXCEPT AT RETAINING WALLS).

2. ALL FOOTINGS ARE TO REST ON UNDISTURBED NATURAL SOIL, AS DEFINED IN THESPECIFICATIONS, OR CONTROLLED COMPACTED FILL, REGARDLESS OF ELEVATIONSSHOWN ON DRAWINGS. FOOTING BOTTOM ELEVATIONS SHALL NOT BE HIGHERTHAN INDICATED ON THE FOUNDATION PLAN, NOR LESS THAN 3'-6" BELOW FINISHGRADES.

3. IF FILL MATERIALS ARE ENCOUNTERED AT FOOTING BEARING ELEVATIONS, ALL FILLMATERIAL SHALL BE EXCAVATED AND DISPOSED OF LEGALLY OFF-SITE. THE OVEREXCAVATION SHALL BE BACKFILLED WITH CONTROLLED COMPACTED FILL TO THEBOTTOM OF FOOTING ELEVATION AS REQUIRED.

4. ALL CONTROLLED COMPACTED BACKFILL UNDER FOOTINGS AND WITHIN THEFOOTPRINT OF THE STRUCTURE SHALL BE COMPACTED TO 95% OF THE MODIFIEDOPTIMUM DENSITY.

5. BOTTOM OF ALL EXTERIOR FOOTINGS SHALL BE AT LEAST 3'_6" BELOW FINISHEDGRADE. PRIOR TO PROCEEDING WITH FOOTING EXCAVATION, THE CONTRACTORSHALL BE RESPONSIBLE FOR THE COORDINATION OF FINISH GRADES AND BOTTOMOF EXTERIOR FOOTING ELEVATIONS TO MAINTAIN THE 3'-6" FROST PROTECTION.

6. ALL SOIL SURROUNDING AND UNDER ALL FOOTINGS SHALL BE PROTECTED FROMFREEZING AND FROST ACTION DURING THE COURSE OF CONSTRUCTION.

7. FOOTING BOTTOMS SHALL STEP AT THE RATE OF 1 UNIT VERTICAL TO 2 UNITSHORIZONTAL WITH A MAXIMUM VERTICAL STEP OF 1'_4".

8. WHERE SUBSURFACE PIPING PASSES THROUGH FOUNDATION WALLS, THE TOP OFTHE FOOTINGS SHALL BE AT LEAST 8" BELOW THE INVERT ELEVATION OF THE PIPINGAND CONDUITS. COORDINATE ALL INVERTS WITH MECHANICAL, PLUMBING, FIREPROTECTION, ELECTRICAL, SITE AND SITE UTILITY DRAWINGS.

9. WHERE FOOTINGS ARE IN CLOSE PROXIMITY OF SUBSURFACE PIPING OR CONDUIT,BOTTOM OF FOOTINGS SHALL BE AT LEAST 8" BELOW INVERT ELEVATION OF PIPINGOR CONDUITS.

1.10. KEEP FOUNDATION EXCAVATIONS FREE OF WATER AT ALL TIMES.

11. USE LEAN CONCRETE (f'c=1500) OR CONTROLLED COMPACTED FILL FOROVER_EXCAVATION OF FOOTINGS.

12. PLACEMENT OF ALL COMPACTED FILL MATERIALS MUST BE UNDER SUPERVISION OFAN APPROVED TESTING LABORATORY (SEE SPECIFICATIONS). CONCRETEFOUNDATIONS SHALL NOT BE PLACED UNTIL SUBGRADE HAS BEEN CHECKED INPLACE AND APPROVED BY TESTING LABORATORY.

13. EXISTING ON-SITE EXCAVATED MATERIALS SHALL NOT BE ACCEPTABLE BACKFILLMATERIAL BELOW BUILDING FOUNDATIONS, SLABS ON GRADE, OR FOR BACKFILLINGOF FOUNDATION WALLS, OR WITHIN 2 FEET OF PAVEMENT GRADES.

14. CONTROL JOINT SPACING IN FOUNDATION WALLS SHALL NOT EXCEED 30 FEET. 50%OF HORIZONTAL REINFORCEMENT SHALL EXTEND THROUGH JOINT AND HAVE ACLASS "B" SPLICE (PER ACI 318-95).

15. WHERE REQUIRED, CONSTRUCTION JOINTS SHALL BE KEYED AND OCCUR ATCONTROL JOINT INTERVALS. PROVIDE BENTONITE WATERSTOP FULL HEIGHT IN ALLWALL CONSTRUCTION JOINTS BELOW GRADE.

16. SEE ARCHITECTURAL DRAWINGS FOR LOCATIONS OF BRICK OR CONCRETEMASONRY BLOCK SHELF ELEVATIONS IN THE FOUNDATION WALLS.

17. FOUNDATION DESIGN SITE PREPARATION: THE FOUNDATION DESIGN AS INDICATEDON THE STRUCTURAL DRAWINGS HAS BEEN BASED ON THE FOLLOWING SITEPREPARATION. THE SITE HAS BEEN PREPARED BY THE EXCAVATION AND REMOVALFROM THE SITE OF ALL EXISTING FILL AND CONTAMINATED SOILS. THE FOUNDATIONDESIGN IS BASED ON THE CONTROLLED BACKFILLING OF THE SITE EXCAVATIONWITH CONTROLLED FILL COMPACTED TO AT LEAST 95% OF THE MODIFIED OPTIMUMDENSITY IN ACCORDANCE WITH ASTM D1557.

18. PROVIDE CONTINUOUS BENTONITE WATERSTOPS BETWEEN THE TOP OF FOOTINGAND BOTTOM OF ALL WALLS WHERE THE SLAB ON GRADE IS BELOW THE FINISHGRADE. PLACE THE WATERSTOP WITH A MINIMUM OF 2" CLEAR FROM THE FACE OFWALL, OR PER THE MANUFACTURERS WRITTEN INSTALLATION INSTRUCTIONS.ATTACH WATERSTOP TO THE CONCRETE PER THE MANUFACTURERS WRITTENINSTALLATION INSTRUCTIONS.

SLAB ON GRADE

1. ALL SLABS ON GRADE SHALL BEAR ON A 15 MIL, CLASS A, VAPOR RETARDER OVER AMINIMUM OF 6 INCHES OF 3/4" COMPACTED PROCESSED AGGREGATE FILL, OVER AMINIMUM OF 6 INCHES OF COMPACTED GRAVEL FILL.

ALL JOINTS OF THE VAPOR RETARDER SHALL BE SEALED WITH TAPE. TURN THEVAPOR BARRIER UP AT ALL TERMINATIONS AGAINST FOUNDATION WALLS AND SEALJOINT BY CONTINUOUSLY TAPING.

2. IF FILL MATERIALS ARE ENCOUNTERED SLAB SUBGRADE ELEVATIONS, ALL FILLMATERIAL SHALL BE EXCAVATED AND DISPOSED OF LEGALLY OFF-SITE. THE OVEREXCAVATION SHALL BE BACKFILLED WITH CONTROLLED COMPACTED FILL TO THEBOTTOM OF THE SLAB SUBGRADE AS REQUIRED. ALL CONTROLLED COMPACTEDBACKFILL UNDER SLABS WITHIN THE FOOTPRINT OF THE STRUCTURE SHALL BECOMPACTED TO 95% OF THE MODIFIED OPTIMUM DENSITY.

3. EXISTING ON-SITE EXCAVATED MATERIALS SHALL NOT BE ACCEPTABLE BACKFILLMATERIAL BELOW BUILDING SLABS ON GRADE.

4. CONTROL JOINTS ARE TO BE CREATED IN SLABS ON GRADE. JOINTS SHALL BE SAWCUT 1/8" WIDE AND TO A DEPTH EQUAL TO 1/4 OF THE SLAB THICKNESS. LOCATEJOINTS A MAXIMUM OF 15'_0" ON CENTER IN EACH DIRECTION, IN ADDITION TOTHOSE LOCATIONS INDICATED ON PLAN.

5. CONSTRUCTION JOINTS AS REQUIRED SHALL BE KEYED AND DOWELED ANDLOCATED AT INTERVALS OF A MAXIMUM OF 75 FEET ON CENTER.

6. SEE ARCHITECTURAL DRAWINGS FOR LOCATION AND SIZE OF DEPRESSED AREAS INCONCRETE SLABS AND FOR CONCRETE PADS. MAINTAIN FULL SLAB THICKNESS INDEPRESSED AREAS, UNLESS OTHERWISE SHOWN.

7. CONTRACTOR SHALL CONSOLIDATE ALL SLAB CONCRETE USING VIBRATIONALMETHODS IN CONFORMANCE WITH ACI 309, GUIDE FOR CONSOLIDATION OFCONCRETE.

CONCRETE

MATERIALS:

CONCRETE SHALL DEVELOP STRENGTH IN 28 DAYS AS FOLLOWS:

LOCATION STRENGTH (PSI)

FOUNDATIONS 3000WALLS 3000SLABS ON GRADE 3500SLABS ON METAL DECK 3500

1. ALL DETAILING, FABRICATION AND ERECTION OF REINFORCING BARS MUST FOLLOWTHE LATEST ACI CODE AND THE LATEST ACI "MANUAL OF STANDARD PRACTICE FORDETAILING REINFORCED CONCRETE STRUCTURES".

2. REINFORCING STEEL SHALL BE 60,000 PSI YIELD.

3. NO TACK WELDING OF REINFORCING WILL BE PERMITTED.

4. UNLESS NOTED OTHERWISE, ALL LAP SPLICES SHALL BE CLASS B, IN ACCORDANCEWITH ACI 318-02.

5. WELDED WIRE FABRIC SHALL CONFORM TO ASTM A_185.

6. WIRE MESH REINFORCEMENT MUST LAP ONE MESH SIZE AT SIDES AND ENDS AND BEWIRED TOGETHER.

1.7. WELDED WIRE FABRIC SIDE LAPS SHALL BE STAGGERED TO AVOID FOUR MESH

THICKNESS AT COINCIDING END LAP AND SIDE LAP LOCATION.

8. NO CALCIUM CHLORIDE OR ADMIXTURES CONTAINING MORE THAN 0.1% CHLORIDEBY WEIGHT OF ADMIXTURE SHALL BE USED IN THE CONCRETE.

9. BOTTOM OF ALL EXTERIOR FOOTINGS SHALL BE AT LEAST 3'_6" BELOW FINISHEDGRADE. PRIOR TO PROCEEDING WITH FOOTING FORMWORK, THE CONTRACTORSHALL BE RESPONSIBLE FOR THE COORDINATION OF BOTTOM OF EXTERIORFOOTING ELEVATIONS WITH THE FINISH GRADES AND MAINTAINING THE 3'-6" FROSTPROTECTION. WHERE SUBSURFACE PIPING PASSES THROUGH FOUNDATION WALLS,THE TOP OF FOOTINGS SHALL BE AT LEAST 8" BELOW THE INVERT ELEVATION OF THEPIPING AND CONDUITS. COORDINATE ALL INVERTS WITH MECHANICAL, PLUMBING,FIRE PROTECTION, ELECTRICAL, SITE AND SITE UTILITY DRAWINGS. PIPING ORCONDUITS SHALL NOT PASS THROUGH COLUMNS OR PIERS.

10. CONTRACTOR SHALL ANTICIPATE DEFLECTION OF STEEL AT SUPPORTED ELEVATEDSLABS, AND PROVIDE ADDITIONAL CONCRETE AS REQUIRED.

11. ALL HORIZONTAL STEEL SHOWN IN SECTIONS AND DETAILS SHALL BE CONTINUOUS,UNLESS OTHERWISE NOTED. ALL LAPS SHALL BE CLASS B SPLICES IN ACCORDANCEWITH ACI 318.

12. AT INTERSECTIONS OF REINFORCED CONCRETE WALLS, PROVIDE CORNER DOWELSOF SAME SIZE AND AT THE SAME SPACING AS THE SMALLER HORIZONTALREINFORCING. DOWELS SHALL HAVE A CLASS B LAP WITH HORIZONTALREINFORCING IN EACH DIRECTION.

13. PROVIDE DRILLED AND EPOXIED DOWELS OF SAME SIZE TO MATCH NEWREINFORCING WHERE NEW CONSTRUCTION ABUTS EXISTING CONCRETECONSTRUCTION. LENGTH SHALL BE THE REQUIRED EMBEDMENT DEPTH PER THEANCHOR BOLT/EPOXY MANUFACTURER PLUS A CLASS B LAP SPLICE FOR THE SIZEOF BAR.

14. PROVIDE CORROSION RESISTANT ACCESSORIES IN ALL EXPOSED CONSTRUCTION.

15. ALL KEYS IN CONCRETE WALLS SHALL BE 2 X 4 UNLESS NOTED OTHERWISE.

16. CONCRETE PIERS: PLACE CONCRETE PIERS AND WALLS TOGETHER. SET PIERREINFORCING AND SET WALL REINFORCING THROUGH PIER VERTICAL BARS.PROVIDE DOWELS WITH STANDARD HOOK FROM FOOTING AT ALL PIERS. SIZE ANDQUANTITY OF DOWELS TO MATCH VERTICAL PIER REINFORCING, PROVIDE CLASS "B"SPLICE.

17. SEE ARCHITECTURAL, MECHANICAL, PLUMBING, FIRE PROTECTION, ELECTRICAL,SITE, SITE UTILITY AND EQUIPMENT DRAWINGS FOR CONCRETE PADS, SLEEVES,OPENINGS, RECESSES, AND BUILT-IN WORK IN CONCRETE ELEMENTS.

18. THE CONTRACTOR SHALL FURNISH, LOCATE AND INSTALL ALL ACCESSORIES FORPROPER ANCHORAGE OF WOOD AND METAL FRAMING, WOOD BLOCKING, BRICKWORK AND MASONRY UNITS. HE SHALL BE SOLELY RESPONSIBLE FOR FURNISHING,LOCATING AND ENSURING PROPER QUANTITY OF ALL FASTENING DEVICES.

19. ALL CONCRETE TO REMAIN EXPOSED TO VIEW SHALL RECEIVE A SMOOTH RUBBEDFINISH (SEE SPECIFICATIONS).

20. ALL CONCRETE CORNERS WITH BOTH SIDES EXPOSED TO VIEW SHALL BE SQUAREUNLESS OTHERWISE SHOWN OR NOTED. THE EDGE SHALL BE RUBBED, PRODUCINGA SMOOTH, DENSE SURFACE WITHOUT PITS OR IRREGULARITIES.

21. PROVIDE CONTINUOUS VERTICAL DOVETAIL SLOTS AT 16 INCH CENTERSHORIZONTALLY FOR ALL CONCRETE WALLS ABUTTING A MASONRY WALL ORMASONRY VENEER, UNLESS OTHERWISE NOTED

22. PROVIDE CLEARANCE FROM EDGE OF REINFORCING TO EDGE OF CONCRETE ASFOLLOWS:

FOOTINGS (AGAINST EARTH) 3"COLUMNS AND PIERS (VERTICAL REINFORCING) 2"WALLS, INTERIOR FACE 3/4"WALLS, EXTERIOR FACE (#5 AND SMALLER) 1 1/2"WALLS, EXTERIOR FACE (#6 AND LARGER) 2"SLABS (INTERIOR) 3/4"SLABS (EXTERIOR) 1 1/2"SLABS ON GRADE (W.W.F.) 1/3 X THK. FROM

TOP SURFACE

23. PROVIDE THE FOLLOWING AT OPENINGS IN ALL CONCRETE WALLS AND FRAMEDSLABS, UNLESS OTHERWISE INDICATED:

1-#5 AT EACH FACE ON EACH SIDE OF OPENING, EXTENDING 2'-0" BEYONDOPENING.

1-#5 X 4'-0" LONG AT EACH FACE DIAGONALLY AT EACH CORNER.

24. SHOP DRAWINGS SHALL INDICATE LOCATIONS OF ALL WALL CONTROL ANDCONSTRUCTION JOINTS.

STRUCTURAL STEEL

MATERIALS:

STRUCTURAL STEEL ASTM A 36ALL W SHAPES ASTM A 992, GR.50

STRUCTURAL STEEL TUBING ASTM A500, GRADE BSTRUCTURAL STEEL PIPE ASTM A53, GRADE BBOLTS ASTM A325ANCHOR BOLTS ASTM F1554, GRADE 36WELDING ELECTRODE ASTM E 70

1. DESIGN, FABRICATION, AND ERECTION OF STRUCTURAL STEEL SHALL CONFORM TOCURRENT AMERICAN INSTITUTE OF STEEL CONSTRUCTION SPECIFICATION.

2. WELDING SHALL CONFORM TO THE CODE FOR "ARC AND GAS WELDING IN BUILDINGCONSTRUCTION" OF THE AMERICAN WELDING SOCIETY.

3. ALL LOOSE BEAM LINTELS SHALL HAVE 8" MINIMUM BEARING. SEE ARCHITECTURALJAMB DETAILS FOR LENGTHS.

4. FOR MISCELLANEOUS STEEL REFER TO ARCHITECTURAL DRAWINGS.

5. ALL WELDING SHALL BE DONE BY A CERTIFIED WELDER IN ACCORDANCE WITH A.W.S.STANDARDS.

6. PROVIDE LEVELING NUTS FOR ALL COLUMN BASE PLATES WITH FOUR (4) ANCHORBOLTS AND PROVIDE 1 1/2" MINIMUM, 5000 PSI NON-SHRINK GROUT.

7. CONNECTIONS:

CONNECTIONS SHALL BE DESIGNED BY THE FABRICATOR AND CONSTRUCTEDIN ACCORDANCE WITH THE LATEST EDITION OF THE A.I.S.C. MANUAL OF STEELCONSTRUCTION. CONNECTIONS SHALL BE PROVIDED TO CONFORM TO THEREQUIREMENTS OF TYPE 2 CONSTRUCTION UNLESS OTHERWISE DETAILED.

CONNECTIONS SHALL BE DESIGNED TO ACCOMMODATE THE REACTIONSRESULTING FROM THE ALLOWABLE UNIFORM LOAD BEAM TABLES, PER THEAISC MANUAL, FOR THE SPAN INDICATED ON THE DRAWINGS.

MINIMUM CONNECTION ANGLE THICKNESS SHALL BE 5/16". USE DOUBLEFRAMING ANGLE CONNECTIONS.

IN ADDITION TO PROVIDING ADEQUATE BOLTS TO ACCOMMODATE REACTIONS,THE FOLLOWING MINIMUM NUMBER OF BOLT ROWS SHALL BE USED:

MEMBER DEPTH MINIMUM BOLT ROWS

10" or Less 2 12" to 14" 3 16" to 18" 4 21" to 24" 5 27' to 30" 6 Over 30" 7

CONNECTIONS SHALL BE MADE USING 3/4" DIAMETER ASTM A325 BOLTS (SNUGTIGHT OR SLIP CRITICAL) OR WELDS, UNLESS NOTED OTHERWISE. IF TENSIONCONTROL BOLTS ARE USED, CONNECTIONS SHALL BE DESIGNED FOR SLIPCRITICAL BOLT ALLOWABLE LOAD VALUES USING CLASS A FAYING SURFACE.

PROVIDE SLOTTED BOLTED CONNECTIONS WHERE SHOWN WITH 13/16" X 1 7/8"SLOTTED HOLES USING ASTM A 325 BOLTS WITH WASHERS. NUTS SHALL BEFASTENED SNUG TIGHT, THEN UNTIGHTENED BY ONE-HALF TURN. PEENTHREADS TO PREVENT FURTHER LOOSENING OF NUT.

USE LARGER OF 1/4" FILLET WELDS OR MINIMUM SIZE PER AISC REQUIREMENTSWHERE NO WELD SIZE IS SHOWN ON DRAWINGS.

WELDS IN EXCESS OF 24" IN LENGTH SHALL BE 3" STITCH WELDS AT 8" ONCENTERS, UNLESS SPECIFICALLY SHOWN ON DRAWINGS TO BE CONTINUOUS.

MOMENT CONNECTIONS SHALL BE DESIGNED TO DEVELOP FULL MOMENTCAPACITY OF THE ELEMENTS CONNECTED, UNLESS SPECIFIC MOMENT ISINDICATED ON THE DRAWINGS.

8. NO WELDING OR FINAL BOLTING SHALL BE DONE UNTIL AS MUCH OF THESTRUCTURE THAT WILL BE STIFFENED THEREBY HAS BEEN PROPERLY ALIGNED.

9. SEQUENCE OF PLACING WELDS SHALL BE SUCH AS TO AVOID DISTORTION OFMEMBERS.

10. SUBSTITUTION OF STRUCTURAL STEEL MEMBERS IS PERMITTED TO FACILITATEDELIVERY AT NO ADDITIONAL COST TO THE OWNER. SUBSTITUTED MEMBERS MUSTBE OF THE SAME NOMINAL DEPTH AS THE MEMBER ORIGINALLY INDICATED ANDHAVE A WEIGHT GREATER THAN THAT INDICATED. BEAM FLANGES MUST NOTINFRINGE ON ADJACENT ARCHITECTURAL ELEMENTS.

11. ALL STRUCTURAL STEEL BEAMS AND COLUMNS ADJACENT TO MASONRY SHALLHAVE THE FOLLOWING MASONRY ANCHORAGE:

16 GAGE GALVANIZED CHANNEL SLOTS (DUR_O_WAL, INC. D/A 901) WELDED TOCOLUMNS AND BEAMS WITH 1/4" GALVANIZED STRAP ANCHORS (DUR_O_WAL,INC. D/A 914) SPACED 1'_4" O.C. AT COLUMNS AND 1'_4" AT BEAMS (UNLESSOTHERWISE NOTED). INSTALL PER MANUFACTURER'S SPECIFICATIONS.

12. STEEL MEMBERS SHOWN CONNECTED TO MASONRY WITH EXPANSION ANCHORSSHALL HAVE 3/4" DIAMETER EXPANSION ANCHORS AT 2'-8" ON CENTERS INVERTICALLY SLOTTED HOLES, UNLESS OTHERWISE INDICATED.

13. BEAMS BEARING ON MASONRY SHALL HAVE ANGLE WALL ANCHORS WELDED TO THEBEAM, AS DETAILED IN THE A.I.S.C. MANUAL OF STEEL CONSTRUCTION.

14. PROVIDE 8" X 8" X 5/8" BEARING PLATES FOR ALL WALL BEARING BEAMS UNLESSNOTED OTHERWISE. ALL PLATES SHALL HAVE A MINIMUM OF (2)-3/4" DIAMETER X 5"LONG WELDED STUDS ON THE BOTTOM TO SET IN CONCRETE OR MASONRY WALLS.

15. SPRAY-ON FIREPROOFING SHALL BE APPLIED TO ALL STRUCTURAL STEEL TOACHIEVE REQUIRED FIRE RATING, UNLESS OTHER PROTECTIVE COATING ISINDICATED ON THE ARCHITECTURAL DRAWINGS.

16. ALL STEEL MEMBERS EXPOSED TO WEATHER OR IN CONTACT WITH PRESSURETREATED LUMBER OR WOOD PRODUCTS IN THE COMPLETED CONSTRUCTION SHALLBE HOT-DIPPED GALVANIZED IN ACCORDANCE WITH ASTM A123.

17. PROVIDE BITUMASTIC PROTECTION COATING FOR ALL STRUCTURAL STEEL BELOWGRADE.

18 PROVIDE 1/4" CLOSURE PLATES WITH FULL SEAL WELDS FOR ALL TUBE OR PIPEHOLLOW STEEL SECTIONS, UNLESS OTHERWISE NOTED ON THE DRAWINGS.

METAL ROOF DECK

1. MATERIALS:

TYPICAL METAL DECK SHALL BE 1 1/2" GALVANIZED WIDE RIB TYPE WITH NESTINGSIDE SEAMS OF GAGE INDICATED ON THE DRAWINGS.

DECK SHALL CONFORM TO "BASIC DESIGN SPECIFICATION" AS ADOPTED BY THESTEEL DECK INSTITUTE.

METAL ROOF DECK SHALL BE FURNISHED IN SHEET LENGTHS SUFFICIENT TOEXTEND OVER FOUR SUPPORTS (3 SPANS) WHEREVER POSSIBLE.

2. ATTACHMENT:

METAL DECK SHALL BE SCREWED TO SUPPORTING STEEL WITH #12 SELF TAPPINGSCREWS SPACED NOT MORE THAN 12" ON CENTER WITH A 36/4 FASTENING PATTERN,UNLESS OTHERWISE NOTED ON THE DRAWINGS.

SCREW METAL ROOF DECK TO STEEL MEMBERS PARALLEL TO SPAN OF DECK USING#12 SELF TAPPING SCREWS SPACED AT 12" ON CENTER. WELDING OF THE ROOFDECK IS PROHIBITED.

INTERMEDIATE SIDE CONNECTIONS SHALL BE MADE WITH #10 SELF TAPPINGSCREWS. THE MAXIMUM SPACING OF SIDE LAP CONNECTIONS SHALL BE 1'-6", WITHA MINIMUM OF (4) SCREWS PER SPAN. FOR 3" DECK USE A MINIMUM OF (8) SCREWSPER SPAN.

COMPOSITE FLOOR DECK

1. MATERIALS:

METAL FLOOR DECK SHALL BE GALVANIZED AND OF DEPTH AND GAGE INDICATEDON THE DRAWINGS. METAL FLOOR DECK SHALL BE FORMED WITH EMBOSSMENTSTO PROVIDE A MECHANICAL LOCK BETWEEN THE STEEL FLOOR AND CONCRETESLAB.

METAL FLOOR DECK SHALL BE FURNISHED IN SHEET LENGTHS SUFFICIENT TOEXTEND OVER 4 SUPPORTS (3 SPANS).

2. ATTACHMENT:

METAL FLOOR DECK SHALL BE FASTENED TO SUPPORTING STEEL, INCLUDING CASTIN PLACE PERIMETER STEEL ANGLES, WITH ATTACHMENTS EQUIVALENT TO 3/4"DIAMETER PUDDLE WELDS SPACED NOT MORE THAN 12" ON CENTER WITH A 36/4FASTENING PATTERN. ADJACENT DECK UNITS SHALL BE FASTENED TOGETHER ATSIDE LAPS SUCH THAT THE CONNECTION SPACING DOES NOT EXCEED 24" ONCENTER, WITH A MINIMUM OF (4) SCREWS PER SPAN.

CONCRETE MASONRY

MATERIALS:

HOLLOW LOAD BEARING UNITS: ASTM C 90MORTAR: (TYPE S) ASTM C 270

(COMPRESSIVE STRENGTH OF MASONRY, fm = 1500 PSI)GROUT FOR REINFORCED MASONRY: ASTM C 476

(COMPRESSIVE STRENGTH AT 28 DAYS = 2500 PSI)GROUT FOR REINFORCED MASONRY: ASTM C 476SOLID LOAD BEARING UNITS: (GRADE N-I) ASTM C 145CONCRETE BRICK: (GRADE N-I) ASTM C 55

1. WALLS INDICATED ON STRUCTURAL DRAWINGS ARE FOR REFERENCE ONLY. SEEARCHITECTURAL DRAWINGS FOR LOCATION, THICKNESS AND COMPOSITION OFMASONRY WALLS.

2. ALL EXTERIOR MASONRY WALLS, BEARING WALLS AND SHEAR WALLS SHALLCONTAIN THE FOLLOWING REINFORCING:

1-#5 VERTICAL BAR AT 32" ON CENTER.

2-#6 VERTICAL BARS AT BOTH SIDES OF DOOR, WINDOW AND MECHANICALOPENINGS.

2-#5 HORIZONTAL BAR MINIMUM ABOVE AND BELOW ALL WINDOW ANDMECHANICAL OPENINGS AND ABOVE ALL DOOR OPENINGS. PROVIDEADDITIONAL BARS ABOVE DOORS, WINDOWS AND MECHANICAL OPENINGS ASREQUIRED IN ACCORDANCE WITH LINTEL SCHEDULE ON ARCHITECTURALDRAWINGS.

2-#5 HORIZONTAL AT TOP OF ALL WALLS, AND AT BOND BEAMS CONNECTEDTO FLOORS AND ROOFS, UNLESS OTHERWISE INDICATED.

2_#6 VERTICAL BARS AT ENDS OF ALL WALLS, AND EACH SIDE OF CONTROLJOINTS.

STANDARD LADUR TYPE DESIGN DUR_O_WAL HORIZONTAL REINFORCING @ 16"O.C. VERTICAL. SIDE WIRE SIZE SHALL BE #9 GAGE WIRE.

3. ALL OTHER NON-LOAD BEARING INTERIOR MASONRY WALLS SHALL CONTAIN THEFOLLOWING MINIMUM REINFORCING:

1-#4 VERTICAL BAR AT 48" ON CENTER.

1_#4 VERTICAL AND HORIZONTAL AT ALL SIDES OF DOORS, WINDOW ANDMECHANICAL OPENINGS.

1-#4 HORIZONTAL BAR MINIMUM ABOVE AND BELOW ALL WINDOW ANDMECHANICAL OPENINGS AND ABOVE ALL DOOR OPENINGS. PROVIDEADDITIONAL BARS ABOVE DOORS, WINDOWS AND MECHANICAL OPENINGS ASREQUIRED IN ACCORDANCE WITH LINTEL SCHEDULE ON ARCHITECTURALDRAWINGS.

1-#4 VERTICAL AT ENDS OF ALL WALLS, AND EACH SIDE OF CONTROL JOINTS.

1-#4 HORIZONTAL AT TOP OF ALL WALLS.

1-#4 HORIZONTAL IN BOND BEAMS CONNECTED TO FLOORS AND ROOFS .

STANDARD LADUR TYPE DESIGN DUR_O_WAL HORIZONTAL REINFORCING @ 16"O.C. VERTICAL. SIDE WIRE SIZE SHALL BE #9 GAGE WIRE.

5. PROVIDE VERTICAL DOWELS FROM CONCRETE WALLS INTO ALL CMU WALLS. SIZEAND SPACING OF THE DOWELS SHALL MATCH THE VERTICAL REINFORCING ASSPECIFIED IN THESE GENERAL NOTES, UNLESS OTHERWISE NOTED ON THEDRAWINGS. DOWEL LENGTHS SHALL BE THE REQUIRED CONCRETE DEVELOPMENTLENGTH PLUS THE REQUIRED BAR LAP SPLICE LENGTH FOR MASONRY AS SPECIFIEDIN THESE GENERAL NOTES.

6. ALL VERTICAL WALL REINFORCING SHALL BE CONTINUOUS FOR THE FULL HEIGHT OFMASONRY WALLS, INCLUDING THROUGH CONTINUOUS MASONRY BOND BEAMSUNLESS OTHERWISE INDICATED.

7. ALL GROUTING OF MASONRY WALLS SHALL BE ASSUMED TO BE COMPLETED BY LOWLIFT GROUTING METHODS. IF THE CONTRACTOR PROPOSES TO UTILIZE HIGH LIFTGROUTING METHODS THEY SHALL SUBMIT THEIR PROPOSED HIGH LIFT GROUTINGPROCEDURE FOR REVIEW PRIOR TO STARTING ANY GROUTING ON THE PROJECTSITE.

8. REINFORCING ABOVE WINDOWS, DOORS AND MECHANICAL OPENINGS IN THEEXTERIOR WALLS SHALL BE IN A BOND BEAM COURSE ABOVE THE STEEL LINTELSPROVIDED AT THESE OPENINGS. BOND BEAMS SHALL EXTEND 2'-0" BEYOND THEOPENING.

9. CELLS CONTAINING REINFORCING BARS AND ALL CELLS BELOW GRADE SHALL BEGROUTED SOLID. ALL OTHER CELLS SHALL REMAIN HOLLOW EXCEPT WHERENOTED. THE CONTRACTOR SHALL NOT RUN CONDUIT OR PIPE IN CELLSCONTAINING REINFORCING.

10. ALL BOLTS OR ANCHORS SHALL BE SOLIDLY EMBEDDED IN MORTAR OR GROUT. IFBOND BEAM IS NOT LOCATED AT BOLT OR ANCHOR ELEVATION, PROVIDE LATH ANDFILL CELL LOCALLY TO PROVIDE SUBSTRATE FOR BOLT OR ANCHOR. GROUT CELLABOVE ALL MASONRY ANCHORS.

11. ALL COLUMNS WITHIN SHEAR WALLS AND EXTERIOR WALLS SHALL BE SOLIDLYEMBEDDED IN GROUT.

12. USE 2 COURSES (16") OF SOLID MASONRY OR GROUTED SOLID MASONRY BELOWEACH BEAM OR LINTEL BEARING EXCEPT AS NOTED.

13. USE 1 COURSE (8") OF SOLID MASONRY OR GROUTED SOLID MASONRY BELOW EACHSTEEL JOIST BEARING EXCEPT AS NOTED.

14. PROVIDE CONTINUOUS GROUTED BOND BEAM WHERE MASONRY ANCHORSCONNECT CONCRETE MASONRY TO STEEL FRAMING. GROUT CELL ABOVE ANCHOR.

15. HOLLOW UNITS SHALL BE LAID WITH FULL MORTAR COVERAGE ON HORIZONTAL ANDVERTICAL FACE SHELLS, EXCEPT THAT WEBS SHALL ALSO BE BEDDED IN ALLCOURSES OF BEARING AND SHEAR WALLS, PIERS, COLUMNS AND PILASTERS, AND INTHE STARTING COURSE ON FOOTINGS AND SOLID FOUNDATION WALLS, AND WHEREADJACENT TO CELLS OR CAVITIES WHICH ARE TO BE REINFORCED AND/OR FILLEDWITH GROUT.

16. MORTAR PROTRUSIONS EXTENDING INTO CELLS OR CAVITIES TO BE REINFORCEDAND/OR GROUTED SHALL BE REMOVED.

17. ALL MASONRY WALLS SHALL BE BRACED AT THE TOP WHERE MASONRY ENDS ATTHE UNDERSIDE OF FLOOR OR ROOF CONSTRUCTION. REFER TO TYPICAL DETAILS.

18. ALL MASONRY WALLS THAT DO NOT EXTEND TO BOTTOM OF FLOOR OR ROOFSTRUCTURE ABOVE SHALL BE BRACED AT THE TOP, UNLESS BRACED HORIZONTALLYBY COLUMNS OR INTERSECTING WALLS AT A MAXIMUM SPACING OF 11 FEET FOR 4"WALLS, 17 FEET FOR 6" WALLS, 23 FEET FOR 8" WALLS, AND 33 FEET FOR 12" WALLS.THE ENDS OF THE WALLS MUST BE ANCHORED TO INTERSECTING WALLS BY EITHERTOOTHING OR MECHANICAL ANCHORS. THERE SHALL BE NO VERTICAL CONTROLJOINTS WITHIN THE HORIZONTAL SPAN OF THE WALL BETWEEN THE INTERSECTINGWALLS.

19. IN MASONRY WALLS, NO CHASES, RISERS, CONDUITS, OR TOOTHING OF MASONRYSHALL OCCUR WITHIN 17" OF CENTERLINE OF BEAM BEARING OR LOADCONCENTRATION.

20. SOLID UNITS SHALL BE LAID WITH FULL HEAD AND BED JOINTS.

21. COLLAR (VERTICAL LONGITUDINAL) JOINTS BETWEEN THE FACING AND BACKINGWYTHES IN WALLS SHALL BE COMPLETELY FILLED WITH MORTAR OR GROUT ANDWORKED IN WITH A TROWEL.

22. ALL INTERSECTING LOAD BEARING WALLS SHALL BE TIED TOGETHER IN MASONRYBOND UNLESS NOTED OTHERWISE.

23. MINIMUM DEVELOPMENT LENGTH AND SPLICE LENGTH OF MASONRY REINFORCINGSHALL BE AS FOLLOWS:

BAR SIZE DEVELOPMENT LENGTH SPLICE LENGTH

JOINT REINFORCING 9 12 #4 18 24 #5 25 30 #6 27 36 #7 32 42

24. IF EPOXY COATED REINFORCING IS SPECIFIED IN THE MASONRY SPECIFICATIONS,THEN ALL SPLICE LENGTHS SHALL BE INCREASED BY 50% PER THE ACI 530 MASONRYCODE.

25. SUBMIT SHOP DRAWINGS INDICATING THE PLACEMENT OF ALL REINFORCINGREQUIRED IN MASONRY WALLS. REFER TO SPECIFICATIONS FOR SUBMITTALREQUIREMENTS. SHOP DRAWINGS SHALL INDICATE THE LOCATION OF ALLCONTROL JOINTS, AND THE REQUIRED LAP SPLICES FOR ALL REINFORCING.

COLD FORMED LIGHT GAGE METAL FRAMING

1. LIGHT GAGE COLD FORMED METAL FRAMING SHOP DRAWINGS SHALL BEAR THEPROFESSIONAL SEAL OF A PROFESSIONAL ENGINEER REGISTERED IN CONNECTICUT,AND SHALL BE ACCOMPANIED BY STRUCTURAL CALCULATIONS AND ASSUMPTIONS.LOADING SHALL CONFORM TO THE TABULATED UNIFORM LOADING.

CALCULATIONS: PROVIDE PROFESSIONALLY PREPARED CALCULATIONS ANDCERTIFICATION OF THE PERFORMANCE OF THIS WORK. INDICATE HOW DESIGNREQUIREMENTS FOR LOADING AND OTHER PERFORMANCE CRITERIA HAVE BEENSATISFIED. PROVIDE CALCULATIONS SEALED AND SIGNED BY A PROFESSIONALENGINEER LICENSED TO PRACTICE IN THE STATE OF CONNECTICUT.

2. SYSTEM COMPONENTS: MANUFACTURER'S STANDARD LOAD BEARING STUDS ANDJOISTS OF TYPE SIZE AND GAGE INDICATED, AND AS REQUIRED TO SATISFY THEDESIGN LOADS. THE DESIGN OF THE COLD FORMED LIGHT GAGE METAL FRAMINGCOMPONENTS INDICATED ON THESE DRAWINGS HAVE BEEN BASED ONCOMPONENTS MANUFACTURED BY MARINO\WARE.

3. MATERIALS AND FINISHES: FOR 16 GAGE AND HEAVIER UNITS, FABRICATE METALFRAMING COMPONENTS OF STRUCTURAL QUALITY STEEL SHEET WITH A MINIMUMYIELD OF 50,000 PSI; ASTM A653.

4. PROVIDE GALVANIZED FINISH TO METAL FRAMING COMPONENTS COMPLYING WITHASTM A924 FOR MINIMUM G60 COATING.

1. FINISH OF INSTALLATION ACCESSORIES TO MATCH THAT OF FRAMING COMPONENTS.

5. FASTENERS: PROVIDE NUTS, BOLTS, WASHERS, SCREWS AND OTHER FASTENERSWITH CORROSION_RESISTANT PLATED FINISH.

6. ELECTRODES FOR WELDING: COMPLY WITH AWS CODE AND AS RECOMMENDED BYSTUD MANUFACTURER.

7. GALVANIZING REPAIR: WHERE GALVANIZED SURFACES ARE DAMAGED BY WELDINGOR CONSTRUCTION ACTIVITIES, PREPARE SURFACES AND REPAIR IN ACCORDANCEWITH PROCEDURES SPECIFIED IN ASTM A780.

8. ROOF RAFTERS SHALL BE DESIGNED BY THE DESIGN ENGINEER TO SUPPORT THELOADS ABOVE WITH DEFLECTIONS NOT TO EXCEED L/360 UNDER COMBINED DEADLOAD + LIVE LOAD NOR L/360 UNDER LIVE LOAD ALONE. SHOP DRAWINGS SHALL BESIGNED AND SEALED BY A PROFESSIONAL ENGINEER REGISTERED IN THE STATE OFCONNECTICUT.

14. COLD FORMED LIGHT GAGE METAL FRAMING COMPONENTS INDICATED ON THEDRAWINGS SHALL HAVE THE MINIMUM FLANGE WIDTH BASED ON THE DESIGNATIONINDICATED ON THE DRAWINGS AS FOLLOWS:

DESIGNATIONFLANGE WIDTHS162 1 5/8"S200 2"S250 2 1/2"S300 3"S350 3 1/2"

MHAIMichael Horton Associates Inc.

Drawing Number:

Project Number:

Date:

Scale:

Drawn By:

Drawing Title:

Tel. 203 230 9007 Fax. 203 230 8247

3190 Whitney Avenue, Hamden, CT 06518-2340

SILVER / PETRUCELLI + ASSOCIATES

silverpetrucelli.com

Architects / Engineers / Interior Designers

Revised By:Date:Description:Revision:Project Title:

Renovations & Addition758 Main Street, Branford, CT. 06405

Town of BranfordJames Blackstone Memorial Library:

S500General Notes

COLD-FORMED-METAL- FRAMING

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054000-1

SECTION 054000 - COLD-FORMED METAL FRAMING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Roof rafter framing.

B. Related Sections include the following:

1. Division 05 Section "Metal Fabrications" for masonry shelf angles and connections.

2. Division 09 Section "Non-Structural Metal Framing" for interior non-load-bearing,

metal-stud framing and ceiling-suspension assemblies.

3. Division 09 Section "Gypsum Board Shaft Wall Assemblies" for interior non-load-

bearing, metal-stud-framed, shaft-wall assemblies.

1.3 PERFORMANCE REQUIREMENTS

A. Structural Performance: Provide cold-formed metal framing capable of withstanding design

loads within limits and under conditions indicated.

1. Design Loads: As indicated. :

a. Dead Loads: 20 pounds per square foot.

b. Snow Loads: 30 pounds per square foot.

c. Wind Loads: Interior Zones 1, -30.1 pounds per square foot (Ultimate)

End Zones 2, -52.3 pounds per square foot (Ultimate)

Corner Zone 3, -77.4 pounds per square foot (Ultimate)

2. Deflection Limits: Design framing systems to withstand design loads without deflections

greater than the following:

a. Roof Rafter Framing: Horizontal deflection of 1/360 of the horizontally projected

span.

3. Design framing systems to provide for movement of framing members without damage

or overstressing, sheathing failure, connection failure, undue strain on fasteners and

anchors, or other detrimental effects when subject to a maximum ambient temperature

change of 120 deg F (67 deg C).

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B. Cold-Formed Steel Framing, General: Design according to AISI's "Standard for Cold-Formed

Steel Framing - General Provisions."

1.4 SUBMITTALS

A. Product Data: For each type of cold-formed metal framing product and accessory indicated.

a. Include statement indicating costs for each product having recycled content.

B. Shop Drawings: Show layout, spacings, sizes, thicknesses, and types of cold-formed metal

framing; fabrication; and fastening and anchorage details, including mechanical fasteners.

Show reinforcing channels, opening framing, supplemental framing, strapping, bracing,

bridging, splices, accessories, connection details, and attachment to adjoining work.

1. For cold-formed metal framing indicated to comply with design loads, include structural

analysis data signed and sealed by the qualified professional engineer responsible for

their preparation.

C. Welding certificates.

D. Qualification Data: For professional engineer.

E. Product Test Reports: From a qualified testing agency, unless otherwise stated, indicating that

each of the following complies with requirements, based on evaluation of comprehensive tests

for current products:

1. Steel sheet.

2. Expansion anchors.

3. Power-actuated anchors.

4. Mechanical fasteners.

5. Vertical deflection clips.

6. Horizontal drift deflection clips

7. Miscellaneous structural clips and accessories.

F. Research/Evaluation Reports: For cold-formed metal framing.

1.5 QUALITY ASSURANCE

A. Engineering Responsibility: Preparation of Shop Drawings, design calculations, and other

structural data by a qualified professional engineer.

B. Professional Engineer Qualifications: A professional engineer who is legally qualified to

practice in jurisdiction where Project is located and who is experienced in providing

engineering services of the kind indicated. Engineering services are defined as those performed

for installations of cold-formed metal framing that are similar to those indicated for this Project

in material, design, and extent.

C. Testing Agency Qualifications: An independent testing agency, acceptable to authorities having

jurisdiction, qualified according to ASTM E 329 to conduct the testing indicated.

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D. Product Tests: Mill certificates or data from a qualified independent testing agency indicating

steel sheet complies with requirements, including base-metal thickness, yield strength, tensile

strength, total elongation, chemical requirements and metallic-coating thickness.

E. Welding: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural

Welding Code--Steel," and AWS D1.3, "Structural Welding Code--Sheet Steel."

F. Fire-Test-Response Characteristics: Where indicated, provide cold-formed metal framing

identical to that of assemblies tested for fire resistance per ASTM E 119 by a testing and

inspecting agency acceptable to authorities having jurisdiction.

G. AISI Specifications and Standards: Comply with AISI's "North American Specification for the

Design of Cold-Formed Steel Structural Members" and its "Standard for Cold-Formed Steel

Framing - General Provisions."

H. Preinstallation Conference: Conduct conference at Project site to comply with requirements in

Division 01 Section "Project Management and Coordination."

1.6 DELIVERY, STORAGE, AND HANDLING

A. Protect cold-formed metal framing from corrosion, deformation, and other damage during

delivery, storage, and handling.

B. Store cold-formed metal framing, protect with a waterproof covering, and ventilate to avoid

condensation.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering

cold-formed metal framing that may be incorporated into the Work include, but are not limited

to, the following:

B. Manufacturers: Subject to compliance with requirements, provide cold-formed metal framing

by one of the following:

1. Allied Studco.

2. AllSteel Products, Inc.

3. California Expanded Metal Products Company.

4. Clark Steel Framing.

5. Consolidated Fabricators Corp.; Building Products Division.

6. Craco Metals Manufacturing, LLC.

7. Custom Stud, Inc.

8. Dale/Incor.

9. Design Shapes in Steel.

10. Dietrich Metal Framing; a Worthington Industries Company.

11. Formetal Co. Inc. (The).

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12. Innovative Steel Systems.

13. MarinoWare; a division of Ware Industries.

14. Quail Run Building Materials, Inc.

15. SCAFCO Corporation.

16. Southeastern Stud & Components, Inc.

17. Steel Construction Systems.

18. Steeler, Inc.

19. Super Stud Building Products, Inc.

20. United Metal Products, Inc.

2.2 MATERIALS

A. Recycled Content of Steel Products: Provide products with an average recycled content of steel

products so postconsumer recycled content plus one-half of preconsumer recycled content is not

less than 25 percent.

B. Steel Sheet: ASTM A 1003/A 1003M, Structural Grade, Type H, metallic coated, of grade and

coating weight as follows:

1. Grade: ST50H.

2. Coating: G60.

C. Steel Sheet for Vertical Deflection or Drift Clips: ASTM A 653/A 653M, structural steel, zinc

coated, of grade and coating as follows:

1. Grade: 50, Class 1 or 2.

2. Coating: G90 .

2.3 ROOF-RAFTER FRAMING

A. Steel Rafters: Manufacturer's standard C-shaped steel sections, of web depths indicated,

unpunched, with stiffened flanges, and as follows:

1. Minimum Base-Metal Thickness: 0.0538 inch.

2. Flange Width: 1-5/8 inches , minimum.

B. Built-up Members: Built-up members of manufacturer's standard C-shaped steel section, with

stiffened flanges, nested into a U-shaped steel section joist track, with unstiffened flanges;

unpunched; of web depths indicated; and as follows:

1. Minimum Base-Metal Thickness: 0.0538 inch.

2. Flange Width: 1-5/8 inches, minimum.

2.4 FRAMING ACCESSORIES

A. Fabricate steel-framing accessories from steel sheet, ASTM A 1003/A 1003M, Structural

Grade, Type H, metallic coated, of same grade and coating weight used for framing members.

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B. Provide accessories of manufacturer's standard thickness and configuration, unless otherwise

indicated, as follows:

1. Supplementary framing.

2. Bracing, bridging, and solid blocking.

3. Web stiffeners.

4. Anchor clips.

5. End clips.

6. Gusset plates.

7. Stud kickers, knee braces, and girts.

8. Joist hangers and end closures.

9. Hole reinforcing plates.

10. Backer plates.

2.5 ANCHORS, CLIPS, AND FASTENERS

A. Steel Shapes and Clips: ASTM A 36/A 36M, zinc coated by hot-dip process according to

ASTM A 123/A 123M.

B. Expansion Anchors: Fabricated from corrosion-resistant materials, with capability to sustain,

without failure, a load equal to 5 times design load, as determined by testing per ASTM E 488

conducted by a qualified independent testing agency.

C. Power-Actuated Anchors: Fastener system of type suitable for application indicated, fabricated

from corrosion-resistant materials, with capability to sustain, without failure, a load equal to 10

times design load, as determined by testing per ASTM E 1190 conducted by a qualified

independent testing agency.

D. Mechanical Fasteners: ASTM C 1513, corrosion-resistant-coated, self-drilling, self-tapping

steel drill screws.

1. Head Type: Low-profile head beneath sheathing, manufacturer's standard elsewhere.

E. Welding Electrodes: Comply with AWS standards.

2.6 MISCELLANEOUS MATERIALS

A. Galvanizing Repair Paint: SSPC-Paint 20 or DOD-P-21035.

2.7 FABRICATION

A. Fabricate cold-formed metal framing and accessories plumb, square, and true to line, and with

connections securely fastened, according to referenced AISI's specifications and standards,

manufacturer's written instructions, and requirements in this Section.

1. Fabricate framing assemblies using jigs or templates.

2. Cut framing members by sawing or shearing; do not torch cut.

COLD-FORMED-METAL- FRAMING

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3. Fasten cold-formed metal framing members by welding, screw fastening, clinch

fastening, or riveting as standard with fabricator. Wire tying of framing members is not

permitted.

a. Comply with AWS D1.3 requirements and procedures for welding, appearance and

quality of welds, and methods used in correcting welding work.

b. Locate mechanical fasteners and install according to Shop Drawings, with screw

penetrating joined members by not less than three exposed screw threads.

4. Fasten other materials to cold-formed metal framing by welding, bolting, or screw

fastening, according to Shop Drawings.

B. Reinforce, stiffen, and brace framing assemblies to withstand handling, delivery, and erection

stresses. Lift fabricated assemblies to prevent damage or permanent distortion.

C. Fabrication Tolerances: Fabricate assemblies level, plumb, and true to line to a maximum

allowable tolerance variation of 1/8 inch in 10 feet and as follows:

1. Spacing: Space individual framing members no more than plus or minus 1/8 inch from

plan location. Cumulative error shall not exceed minimum fastening requirements of

sheathing or other finishing materials.

2. Squareness: Fabricate each cold-formed metal framing assembly to a maximum out-of-

square tolerance of 1/8 inch.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine supporting substrates and abutting structural framing for compliance with

requirements for installation tolerances and other conditions affecting performance.

1. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Before sprayed fire-resistive materials are applied, attach continuous angles, supplementary

framing, or tracks to structural members indicated to receive sprayed fire-resistive materials.

B. After applying sprayed fire-resistive materials, remove only as much of these materials as

needed to complete installation of cold-formed framing without reducing thickness of fire-

resistive materials below that are required to obtain fire-resistance rating indicated. Protect

remaining fire-resistive materials from damage.

3.3 INSTALLATION, GENERAL

A. Cold-formed metal framing may be shop or field fabricated for installation, or it may be field

assembled.

COLD-FORMED-METAL- FRAMING

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B. Install cold-formed metal framing according to AISI's "Standard for Cold-Formed Steel

Framing - General Provisions" and to manufacturer's written instructions unless more stringent

requirements are indicated.

C. Install shop- or field-fabricated, cold-formed framing and securely anchor to supporting

structure.

1. Screw, bolt, or weld wall panels at horizontal and vertical junctures to produce flush,

even, true-to-line joints with maximum variation in plane and true position between

fabricated panels not exceeding 1/16 inch.

D. Install cold-formed metal framing and accessories plumb, square, and true to line, and with

connections securely fastened.

1. Cut framing members by sawing or shearing; do not torch cut.

2. Fasten cold-formed metal framing members by welding, screw fastening, clinch

fastening, or riveting. Wire tying of framing members is not permitted.

a. Comply with AWS D1.3 requirements and procedures for welding, appearance and

quality of welds, and methods used in correcting welding work.

b. Locate mechanical fasteners and install according to Shop Drawings, and

complying with requirements for spacing, edge distances, and screw penetration.

E. Install framing members in one-piece lengths unless splice connections are indicated for track

or tension members.

F. Install temporary bracing and supports to secure framing and support loads comparable in

intensity to those for which structure was designed. Maintain braces and supports in place,

undisturbed, until entire integrated supporting structure has been completed and permanent

connections to framing are secured.

G. Do not bridge building expansion and control joints with cold-formed metal framing.

Independently frame both sides of joints.

H. Install insulation, specified in Division 07 Section "Thermal Insulation," in built-up exterior

framing members, such as headers, sills, boxed joists, and multiple studs at openings, that are

inaccessible on completion of framing work.

I. Fasten hole reinforcing plate over web penetrations that exceed size of manufacturer's standard

punched openings.

J. Erection Tolerances: Install cold-formed metal framing level, plumb, and true to line to a

maximum allowable tolerance variation of 1/8 inch in 10 feet and as follows:

1. Space individual framing members no more than plus or minus 1/8 inch from plan

location. Cumulative error shall not exceed minimum fastening requirements of

sheathing or other finishing materials.

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3.4 RAFTER INSTALLATION

A. Install perimeter joist track sized to match joists. Align and securely anchor or fasten track to

supporting structure at corners, ends, and spacings indicated on Shop Drawings.

B. Install joists bearing on supporting frame, level, straight, and plumb; adjust to final position,

brace, and reinforce. Fasten joists to both flanges of joist track.

1. Install joists over supporting frame with a minimum end bearing of 1-1/2 inches.

2. Reinforce ends and bearing points of joists with web stiffeners, end clips, joist hangers,

steel clip angles, or steel-stud sections as indicated on Shop Drawings.

C. Space joists not more than 2 inches from abutting walls, and as follows:

1. Joist Spacing: 16 inches.

D. Frame openings with built-up joist headers consisting of joist and joist track, nesting joists, or

another combination of connected joists if indicated.

E. Install joist reinforcement at interior supports with single, short length of joist section located

directly over interior support, with lapped joists of equal length to joist reinforcement, or as

indicated on Shop Drawings.

1. Install web stiffeners to transfer axial loads of walls above.

F. Install bridging at intervals indicated on Shop Drawings. Fasten bridging at each joist

intersection as follows:

1. Bridging: Joist-track solid blocking of width and thickness indicated, secured to joist

webs.

2. Bridging: Combination of flat, taut, steel sheet straps of width and thickness indicated

and joist-track solid blocking of width and thickness indicated. Fasten flat straps to

bottom flange of joists and secure solid blocking to joist webs.

G. Secure joists to load-bearing interior walls to prevent lateral movement of bottom flange.

H. Install miscellaneous joist framing and connections, including web stiffeners, closure pieces,

clip angles, continuous angles, hold-down angles, anchors, and fasteners, to provide a complete

and stable joist-framing assembly.

3.5 FIELD QUALITY CONTROL

A. Testing: Owner will engage a qualified independent testing and inspecting agency to perform

field tests and inspections and prepare test reports.

B. Field and shop welds will be subject to testing and inspecting.

C. Testing agency will report test results promptly and in writing to Contractor and Architect.

COLD-FORMED-METAL- FRAMING

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D. Remove and replace work where test results indicate that it does not comply with specified

requirements.

E. Additional testing and inspecting, at Contractor's expense, will be performed to determine

compliance of replaced or additional work with specified requirements.

3.6 REPAIRS AND PROTECTION

A. Galvanizing Repairs: Prepare and repair damaged galvanized coatings on fabricated and

installed cold-formed metal framing with galvanized repair paint according to ASTM A 780 and

manufacturer's written instructions.

B. Provide final protection and maintain conditions, in a manner acceptable to manufacturer and

Installer, that ensure that cold-formed metal framing is without damage or deterioration at time

of Substantial Completion.

END OF SECTION 054000

RUBBERIZED-ASPHALT SHEET WATERPROOFING

James Blackstone Memorial Library Renovations & Addition – Branford 071354-1

SECTION 071354 - RUBBERIZED-ASPHALT SHEET WATERPROOFING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Rubberized-asphalt sheet waterproofing, reinforced. 2. Pedestal-supported plaza-deck pavers.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1. Review waterproofing requirements including surface preparation, substrate condition and pretreatment, minimum curing period, forecasted weather conditions, special details and sheet flashings, installation procedures, testing and inspection procedures, and protection and repairs.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include construction details, material descriptions, and tested physical and performance properties of waterproofing.

2. Include manufacturer's written instructions for evaluating, preparing, and treating substrate.

B. Shop Drawings: Show locations and extent of waterproofing and details of substrate joints and cracks, expansion joints, sheet flashings, penetrations, inside and outside corners, tie-ins with adjoining waterproofing, and other termination conditions.

1. Include setting drawings showing layout, sizes, sections, profiles, and joint details of pedestal-supported concrete pavers.

C. Samples: For each exposed product and for each color and texture specified, including the following products:

1. 8-by-8-inch square of waterproofing and flashing sheet. 2. 4-by-4-inch square of drainage panel. 3. Plaza-deck paver, full sized, in each color and texture required. 4. Paver pedestal assembly.

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1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer.

B. Field quality-control reports.

C. Sample Warranties: For special warranties.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by waterproofing manufacturer.

1.7 EXTRA MATERIALS

A. Provide six (6) additional concrete pavers and six (6) pedestal bases (maximum height profile) to the Owner at the completion of the project for future use needs.

1.8 FIELD CONDITIONS

A. Environmental Limitations: Apply waterproofing within the range of ambient and substrate temperatures recommended in writing by waterproofing manufacturer. Do not apply waterproofing to a damp or wet substrate.

1. Do not apply waterproofing in snow, rain, fog, or mist.

B. Maintain adequate ventilation during preparation and application of waterproofing materials.

1.9 WARRANTY

A. Manufacturer's Warranty: Manufacturer agrees to furnish replacement waterproofing material for waterproofing that does not comply with requirements or that fails to remain watertight within specified warranty period.

1. Warranty Period: Twenty (20) years from date of Substantial Completion.

B. Special Warranties:

1. Manufacturer agrees to remove all components installed above the waterproofing membrane for a period of twenty (20) years from the date of Substantial Completion.

2. Manufacturer warrants that pavers will not crack, split or otherwise deteriorate to the point of breakage due to freeze-thaw action for a period of ten (10) years from the date of Substantial Completion.

3. Manufacturer warrants that the insulation will retain eighty percent (80%) of its thermal value for a period of ten (10) years from the date of Substantial Completion.

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PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Source Limitations for Waterproofing System: Obtain waterproofing materials, molded-sheet drainage panels, and protection course from single source from single manufacturer.

B. Source Limitations for Plaza-Deck Paving: Obtain plaza-deck pavers and paver pedestals from single source from single manufacturer.

2.2 SHEET WATERPROOFING

A. Basis of Design:

1. Barrett Company; Black Pearl Waterproofing Sheet Membrane (BP-WM) and Primer/Adhesive (BP-PA)

B. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. Laurenco Waterproofing 2. Substitutions: Under provisions of Section 012500 “Substitution Procedures”.

C. Rubberized-Asphalt Sheet: ASTM D 6769, polyester reinforced with longitudinal fiberglass, impregnated and coated with a rubberized asphaltic matrix.

1. Composite Thickness: 55 mils, nominal. 2. Exposed Face Color: Black.

D. Bonding Adhesives: Manufacturer’s standard self-priming waterproofing membrane adhesive that can be installed at 0oF or 100oF as a cold process, unheated application. Adhesive activates and chemically fuses with sheet membrane to form a thick, semi-monolithic waterproof membrane.

2.3 AUXILIARY MATERIALS

A. Furnish auxiliary materials recommended by waterproofing manufacturer for intended use and compatible with sheet waterproofing.

1. Furnish liquid-type auxiliary materials that comply with VOC limits of authorities having jurisdiction.

B. Sheet Flashing: 60-mil-thick, uncured neoprene, as required by manufacturer.

C. Butyl Tape: 1/8-inch-thick-by-width as required, uncured butyl with polyethylene release film.

D. Lap Sealant: Single-component sealant.

E. Waterproofing and Sheet-Flashing Accessories: Sealants, pourable sealers, cone and vent flashings, inside and outside corner flashings, termination reglets, and other accessories recommended by waterproofing manufacturer for intended use.

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F. Nails and Mechanical Fasteners: As specified by the fastener manufacturer for specific application and approved by membrane manufacturer.

G. Metal Termination Bars: Manufacturer's standard aluminum bars, approximately 1-inch-wide, prepunched, with fasteners.

H. Protection Course: Woven or nonwoven polypropylene, polyolefin, or polyester fabric; water permeable and resistant to UV degradation; type and weight as recommended by waterproofing system manufacturer for application.

2.4 MOLDED-SHEET DRAINAGE PANELS

A. Nonwoven-Geotextile-Faced, Molded-Sheet Drainage Panel: Composite subsurface drainage panel acceptable to waterproofing manufacturer and consisting of a studded, nonbiodegradable, molded-plastic-sheet drainage core; with a nonwoven, needle-punched geotextile facing with an apparent opening size not exceeding No. 80 sieve laminated to both sides of the core; and with a vertical flow rate through the core of 80 gpm per sq. ft.

1. Basis of Design: Barrett Company; Ram Drain 1241

2.5 INSULATION PANELS

A. Insulation: Comply with Section 072100 "Thermal Insulation" for general building insulation.

2.6 PLAZA-DECK PAVERS

A. Concrete Plaza-Deck Pavers: Solid, hydraulically pressed, standard-weight concrete units, square edged, manufactured for use as plaza-deck pavers; 8500-psi minimum compressive strength, ASTM C 140; absorption not greater than five percent (5%), ASTM C 140; no breakage and maximum one percent (1%) mass loss when tested for freeze-thaw resistance according to ASTM C 67.

1. Basis of Design:

a. Hanover Architectural Products; Prest Pavers

2. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. Roofblok Limited b. Wausau Tile, Inc. c. Substitutions: Under provisions of Section 012500 “Substitution Procedures”.

3. Thickness: 2 inches. 4. Face Size: 24 inches square. 5. Color and Texture: As selected by Architect and Owner from manufacturer's full range.

B. Paver Pedestals: Paver-support assembly, standard with paver manufacturer, including adjustable or stackable pedestals, shims, and spacer tabs for joint spacing of 1/8-inch.

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C. Lifting Handles: Provide two (2) lifting handles recommended by manufacturer to remove and reinstall panels as required for servicing.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of waterproofing.

1. Verify that concrete has cured and aged for minimum time period recommended in writing by waterproofing manufacturer.

2. Verify that substrate is visibly dry and within the moisture limits recommended in writing by manufacturer. Test for capillary moisture by plastic sheet method according to ASTM D 4263.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Clean, prepare, and treat substrates according to manufacturer's written instructions. Provide clean, dust-free, and dry substrates for waterproofing application.

B. Mask off adjoining surfaces not receiving waterproofing to prevent spillage and overspray affecting other construction.

C. Remove grease, oil, bitumen, form-release agents, paints, curing compounds, and other penetrating contaminants or film-forming coatings from concrete.

D. Remove fins, ridges, mortar, and other projections and fill honeycomb, aggregate pockets, holes, and other voids.

E. Prepare, fill, prime, and treat joints and cracks in substrates. Remove dust and dirt from joints and cracks according to ASTM D 4258.

F. Prepare, treat, and seal vertical and horizontal surfaces at terminations and penetrations through waterproofing and at drains and protrusions.

3.3 SHEET-FLASHING INSTALLATION

A. Install sheet flashings and preformed flashing accessories and adhere to substrates according to waterproofing manufacturer's written instructions.

B. Form wall flashings using sheet flashing.

C. Cover expansion joints and discontinuous deck-to-wall or deck-to-deck joints by extending deck sheet waterproofing over joints.

D. Terminate and seal top of sheet flashings with mechanically anchored termination bars, where required.

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3.4 FULLY ADHERED SHEET INSTALLATION

A. Install fully adhered sheets over entire area to receive waterproofing according to manufacturer's written instructions and per recommendations in ASTM D 5898.

B. Accurately align sheets and maintain uniform side and end laps of minimum dimensions required. Stagger end laps.

C. Apply bonding adhesive to substrates at required rate and allow it to partially dry.

D. Apply bonding adhesive to sheets and firmly adhere sheets to substrates. Do not apply bonding adhesive to splice area of sheet.

E. Repair tears, voids, and lapped seams in waterproofing that do not comply with requirements. Slit and flatten fishmouths and blisters. Patch with sheet waterproofing extending beyond repaired areas in all directions.

F. Horizontal Application: Apply sheets with side laps shingled with slope of deck where possible.

1. Spread sealant bed over deck drain flange at deck drains and securely seal sheet waterproofing in place with clamping ring.

3.5 PROTECTION COURSE INSTALLATION

A. Install protection course over waterproofing according to manufacturer's written instructions and before beginning subsequent construction operations. Minimize exposure of membrane.

3.6 INSULATION INSTALLATION

A. Install insulation directly on the protection course. Cut and fit to within ¾-inch of projections and penetrations.

B. On horizontal surfaces, loosely lay insulation according to manufacturer's written instructions. Stagger end joints and tightly abut insulation units.

3.7 MOLDED-SHEET DRAINAGE-PANEL INSTALLATION

A. Place and secure molded-sheet drainage panels according to manufacturer's written instructions. Use adhesive or another method that does not penetrate waterproofing. Lap edges and ends of geotextile to maintain continuity. Protect installed molded-sheet drainage panels during subsequent construction.

3.8 PLAZA-DECK PAVER INSTALLATION

A. Install pavers according to manufacturer's written instructions.

B. Install paver pedestals and accessories to required elevations. Adjust for final level and slope of paved surfaces.

C. Loosely lay pavers on pedestals, maintaining a uniform open joint width. Tightly seat pavers against spacers to eliminate lateral movement or drift of paving assembly. Align joint patterns parallel in each direction.

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1. Lay out pavers to avoid less-than-half-width pavers at perimeter or other terminations.

D. Install pavers to vary no more than 1/16-inch in elevation between adjacent pavers and no more than 1/16-inch from surface plane elevation of individual paver.

E. Limit variation in paving installation to within ¼-inch in 10 feet of surface plane in any direction; noncumulative.

3.9 FIELD QUALITY CONTROL

A. Manufacturer's Field Service: Engage a site representative qualified by waterproofing membrane manufacturer to inspect substrate conditions, surface preparation, membrane application, flashings, protection, and drainage components; and to furnish daily reports to Architect.

B. Repair or remove and replace components of waterproofing system where inspections indicate that they do not comply with specified requirements.

C. Additional testing and inspecting, at Contractor's expense, will be performed to determine if replaced or additional work complies with specified requirements.

D. Waterproofing will be considered defective if it does not pass tests and inspections.

E. Prepare test and inspection reports.

3.10 PROTECTION, REPAIR, AND CLEANING

A. Do not permit foot or vehicular traffic on unprotected membrane.

B. Protect waterproofing from damage and wear during remainder of construction period.

C. Protect installed insulation drainage panels from damage due to UV light, harmful weather exposures, physical abuse, and other causes. Provide temporary coverings where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation.

D. Correct deficiencies in or remove waterproofing that does not comply with requirements; repair substrates, reapply waterproofing, and repair sheet flashings.

E. Clean spillage and soiling from adjacent construction using cleaning agents and procedures recommended in writing by manufacturer of affected construction.

END OF SECTION 071354

ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING

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SECTION 075323 - ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Adhered ethylene-propylene-diene-monomer (EPDM) roofing system. 2. Roof insulation.

B. Related Requirements:

1. Section 061000 "Rough Carpentry" for wood nailers, curbs, and blocking. 2. Section 076200 "Sheet Metal Flashing and Trim" for metal roof flashings and

counterflashings. 3. Section 079200 "Joint Sealants" for joint sealants, joint fillers, and joint preparation. 4. Section 221423 "Storm Drainage Piping Specialties" for roof drains.

1.3 DEFINITIONS

A. Roofing Terminology: Definitions in ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing Manual" apply to work of this Section.

1.4 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1.5 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Shop Drawings: Include roof plans, sections, details, and attachments to other work, including the following:

1. Base flashings and membrane terminations. 2. Tapered insulation, including slopes. 3. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.

C. Samples: For the following products:

1. Roof membrane and flashings of color required.

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1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer and manufacturer.

B. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

1. Submit evidence of complying with performance requirements.

C. Product Test Reports: For components of roofing membrane and insulation, for tests performed by a qualified testing agency, indicating compliance with specified requirements.

D. Evaluation Reports: For components of roofing system, from ICC-ES.

1. Field Test Reports:

E. Field quality-control reports.

F. Sample Warranties: For manufacturer's special warranties.

1.7 CLOSEOUT SUBMITTALS

A. Maintenance Data: For roofing system to include in maintenance manuals.

1.8 QUALITY ASSURANCE

A. Manufacturer Qualifications: A qualified manufacturer that is UL listed for roofing system identical to that used for this Project.

B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

D. Handle and store roofing materials, and place equipment in a manner to avoid permanent deflection of deck.

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1.10 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

1.11 WARRANTY

A. Manufacturer’s Warranty: Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

1. Special warranty includes membrane roofing, base flashings, roof insulation, fasteners, cover boards, metal flashing, roofing accessories, and other components of roofing system, which shall be no-dollar-limit, non-prorated.

2. Warranty Period: Twenty (20) years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Source Limitations: Obtain components including roof insulation, metal flashing and fasteners for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer.

2.2 PERFORMANCE REQUIREMENTS

A. General Performance: Installed roofing system and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Roofing and flashings shall remain watertight.

1. Accelerated Weathering: Roof membrane shall withstand 2000 hours of exposure when tested according to ASTM G 152, ASTM G 154, or ASTM G 155.

2. Impact Resistance: Roof membrane shall resist impact damage when tested according to ASTM D 3746, ASTM D 4272, or the Resistance to Foot Traffic Test in FM Approvals 4470.

B. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roof membrane manufacturer based on testing and field experience.

C. Roofing System Design: Tested by a qualified testing agency to resist the uplift requirements as indicated on the Drawings.

D. Exterior Fire-Test Exposure: ASTM E 108 or UL 790, Class A; for application and roof slopes indicated; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

E. Fire-Resistance Ratings: Comply with fire-resistance-rated assembly designs indicated. Identify products with appropriate markings of applicable testing agency.

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2.3 ETHYLENE-PROPYLENE-DIENE-TERPOLYMER (EPDM) ROOFING

A. EPDM: ASTM D 4637, Type I, non-reinforced, EPDM sheet.

1. Basis of Design:

a. Firestone Building Products; Rubbergard

2. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. Johns Manville b. Carlisle Syntec Incorporated c. Substitutions: Under provisions of Section 012500 “Substitution Procedures”.

3. Thickness: 60 mils, nominal. 4. Exposed Face Color: Black.

2.4 AUXILIARY ROOFING MATERIALS

A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with roofing.

1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

2. Adhesives and sealants that are not on the exterior side of weather barrier shall comply with the following limits for VOC content:

a. Plastic Foam Adhesives: 50 g/L. b. Gypsum Board and Panel Adhesives: 50 g/L. c. Multipurpose Construction Adhesives: 70 g/L. d. Fiberglass Adhesives: 80 g/L. e. Single-Ply Roof Membrane Adhesives: 250 g/L. f. Single-Ply Roof Membrane Sealants: 450 g/L. g. Nonmembrane Roof Sealants: 300 g/L. h. Sealant Primers for Nonporous Substrates: 250 g/L. i. Sealant Primers for Porous Substrates: 775 g/L. j. Other Adhesives and Sealants: 250 g/L.

B. Sheet Flashing: 60-mil-thick EPDM, partially cured or cured, according to application.

C. Bonding Adhesive: Manufacturer's standard, water based or low-VOC solvent based.

D. Seaming Material: Manufacturer's standard, synthetic-rubber polymer primer and 6-inch-wide minimum, butyl splice tape with release film.

E. Lap Sealant: Manufacturer's standard, single-component sealant, colored to match membrane roofing.

F. Water Cutoff Mastic: Manufacturer's standard butyl mastic sealant.

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G. Metal Termination Bars: Manufacturer's standard, predrilled stainless steel or aluminum bars, approximately 1-by-1/8-inch-thick; with anchors.

H. Miscellaneous Accessories: Provide pourable sealers, preformed cone and vent sheet flashings, molded pipe boot flashings, preformed inside and outside corner sheet flashings, reinforced EPDM securement strips, T-joint covers, in-seam sealants, termination reglets, cover strips, and other accessories.

2.5 ROOF INSULATION

A. General: Preformed roof insulation boards manufactured or approved by EPDM roofing manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses indicated.

B. Polyisocyanurate Board Insulation: ASTM C 1289, Type II, Class 1, Grade 3, glass-fiber mat facer on both major surfaces.

1. Compressive Strength: 25 psi.

C. Tapered Insulation: Provide factory-tapered insulation boards.

1. Material: Match roof insulation. 2. Minimum Thickness: ¼-inch. 3. Slope:

a. Roof Field: ¼-inch per foot unless otherwise indicated on Drawings. b. Saddles and Crickets: ½-inch per foot unless otherwise indicated on Drawings.

D. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated.

2.6 INSULATION ACCESSORIES

A. General: Roof insulation accessories recommended by insulation manufacturer for intended use and compatibility with roofing.

B. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Global 4470, designed for fastening roof insulation and cover boards to substrate, and acceptable to roofing system manufacturer.

C. Insulation Adhesive: Insulation manufacturer's recommended adhesive formulated to attach roof insulation to substrate or to another insulation layer as follows:

1. Full-spread spray-applied, low-rise, two-component urethane adhesive.

D. Cover Board: ASTM C 1289, Type II, Class 4, Grade 2, polyisocyanurate board substrate with glass-fiber mat facer on both major surfaces.

1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:

a. Firestone Building Products; ISOGARD HD

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b. Carlisle Syntec Incorporated c. Substitutions: Under provisions of Section 012500 “Substitution Procedures”.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of the Work:

1. Verify that roof openings and penetrations are in place, curbs are set and braced, and roof-drain bodies are securely clamped in place.

2. Verify that wood blocking, curbs, and nailers are securely anchored to roof deck at penetrations and terminations and that nailers match thicknesses of insulation.

3. Verify that minimum concrete drying period recommended by roofing system manufacturer has passed.

4. Verify that concrete substrate is visibly dry and free of moisture, and that minimum concrete internal relative humidity is not more than seventy-five percent (75%), or as recommended by roofing system manufacturer when tested according to ASTM F 2170.

a. Test Frequency: One (1) test probe per each 1000 sq. ft., or portion thereof, of roof deck, with not less than three (3) test probes.

b. Submit test reports within 24 hours of performing tests.

5. Verify that concrete-curing compounds that will impair adhesion of roofing components to roof deck have been removed.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing system installation according to roofing system manufacturer's written instructions. Remove sharp projections.

B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is forecast.

3.3 ROOFING INSTALLATION, GENERAL

A. Install roofing system according to roofing system manufacturer's written instructions.

B. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system at the end of workday or when rain is forecast. Remove and discard temporary seals before beginning work on adjoining roofing.

3.4 INSULATION INSTALLATION

A. Coordinate installing roofing system components so insulation is not exposed to precipitation or left exposed at the end of the workday.

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B. Comply with roofing system and insulation manufacturer's written instructions for installing roof insulation.

C. Install tapered insulation under area of roofing to conform to slopes indicated.

D. Install insulation under area of roofing to achieve required thickness. Where overall insulation thickness is 2.7 inches or greater, install two (2) or more layers with joints of each succeeding layer staggered from joints of previous layer a minimum of 6 inches in each direction.

E. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not restrict flow of water.

F. Install insulation with long joints of insulation in a continuous straight line with end joints staggered between rows, abutting edges and ends between boards. Fill gaps exceeding ¼ inch with insulation.

1. Cut and fit insulation within ¼ inch of nailers, projections, and penetrations.

G. Adhered Insulation: Install each layer of insulation and adhere to substrate as follows:

1. Set each layer of insulation in a uniform coverage of full-spread insulation adhesive, firmly pressing and maintaining insulation in place.

H. Install cover boards over insulation with long joints in continuous straight lines with end joints staggered between rows. Offset joints of insulation below a minimum of 6 inches in each direction. Loosely butt cover boards together and adhere to insulation.

3.5 ADHERED MEMBRANE ROOFING INSTALLATION

A. Adhere roof membrane over area to receive roofing according to roofing system manufacturer's written instructions.

B. Unroll membrane roofing and allow to relax before installing.

C. Start installation of roofing in presence of roofing system manufacturer's technical personnel.

D. Accurately align roof membrane and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps.

E. Bonding Adhesive: Apply to substrate and underside of roofing at rate required by manufacturer and allow to partially dry before installing roofing. Do not apply to splice area of roofing.

F. In addition to adhering, mechanically fasten roofing securely at terminations, penetrations, and perimeters.

G. Apply roofing with side laps shingled with slope of roof deck where possible.

H. Adhesive Seam Installation: Clean both faces of splice areas, apply splicing cement, and firmly roll side and end laps of overlapping roof membrane to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of roofing terminations.

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1. After completion of seams, strip in with 6-inch composite EPDM seam tape centered over seam. Clean seam with splice primer prior to installing stripping.

I. Tape Seam Installation: Clean and prime both faces of splice areas, apply splice tape, and firmly roll side and end laps of overlapping roof membrane to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of roofing terminations.

1. After completion of seams, strip in with 6-inch composite EPDM seam tape centered over seam. Clean seam with splice primer prior to installing stripping.

J. Repair tears, voids, and lapped seams in roofing that do not comply with requirements.

K. Spread sealant or mastic bed over deck-drain flange at roof drains, and securely seal membrane roofing in place with clamping ring.

3.6 BASE FLASHING INSTALLATION

A. Install sheet flashings and preformed flashing accessories, and adhere to substrates according to roofing system manufacturer's written instructions.

1. All base flashing to be 8 inches minimum including all penetrations.

B. Apply bonding adhesive to substrate and underside of sheet flashing at required rate, and allow to partially dry. Do not apply to seam area of flashing.

C. Flash penetrations and field-formed inside and outside corners with cured or uncured sheet flashing.

D. Clean splice areas, apply splicing cement, and firmly roll side and end laps of overlapping sheets to ensure a watertight seam installation. Apply lap sealant and seal exposed edges of sheet flashing terminations.

E. Terminate and seal top of sheet flashings and mechanically anchor to substrate through termination bars, where indicated.

3.7 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified testing agency to inspect substrate conditions, surface preparation, membrane application, flashings, protection, and drainage components, and to furnish reports to Architect.

B. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing installation on completion.

C. Repair or remove and replace components of roofing system where inspections indicate that they do not comply with specified requirements.

D. Additional testing and inspecting, at Contractor's expense, will be performed to determine if replaced or additional work complies with specified requirements.

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3.8 PROTECTING AND CLEANING

A. Protect roofing system from damage and wear during remainder of construction period. When remaining construction does not affect or endanger roofing system, inspect roofing for deterioration and damage, describing its nature and extent in a written report, with copies to Architect and Owner.

B. Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

END OF SECTION 075323