date: january 23, 2019 section 00 90 01 bidding and ...219017.00 addendum number 1 00 90 0 1 - 3...

219017.00 ADDENDUM NUMBER 1 00 90 01 - 1

Date: January 23, 2019 SECTION 00 90 01 BIDDING AND CONTRACT REQUIREMENTS ADDENDUM NUMBER 1 Legat Architects, Inc. Distributed via: 1515 5th Avenue, Suite 108 EMAIL Moline, IL 61265 P. (309) 517-5536 To: Prospective Bidders Re: ADDENDUM NUMBER 1 TO THE BIDDING DOCUMENTS FOR:

Davenport School District 2019 Roofing Improvements Architect’s Project Number: 219016.00

This addendum forms a part of the bidding and contract documents and modifies the original bidding documents dated December 19, 2018. Acknowledge receipt of this addendum in the space provided on Bid Form. FAILURE TO DO SO MAY SUBJECT BIDDER TO DISQUALIFICATION.

I. PART 1 - ADDENDUM TO THE SPECIFICATIONS

A. SECTION 07 51 13.11 BUILT-UP ASPHALT ROOFING, HOT-APPLIED

1. REVISE specification section:

2.8 VAPOR RETARDER

A. ASTM D 2178 Type VI premium asphalt-impregnated glass-fiber ply sheet.

1. Basis of design product: Tremco, THERMglass Premium Type VI. 2. Net Dry Mass, ASTM D 146: 8 lb/100 sq. ft. (390 g/sq. m). 3. Breaking Strength, minimum, ASTM D 146: Machine direction, 70 lbf/in (12 kN/m); cross machine direction,

60 lbf/in (10 kN/m).

B. Hot-Applied Asphalt Materials:

1. ASTM D 312 Type III hot-melt asphalt. 2. Basis of design product: Tremco, Premium III. 3. Softening Point, min/max, ASTM D 36: 195 – 205 deg. F (90 – 96 deg. C). 4. Ductility at 77 deg. F (25 deg. C), minimum, ASTM D 113: 1.5 cm. 5. Penetration at 77 deg. F (25 deg. C), min/max, ASTM D 5: 15–30 dmm.

3.4 VAPOR-RETARDER INSTALLATION

C. Hot-applied Vapor Retarder: Install two glass-fiber plies lapping each ply 19 inches (480 mm) and adhere in a solid mopping of hot-applied adhesive. Glaze-coat completed surface with solid mopping of hot-applied surfacer adhesive.

D. Completely seal vapor retarder/air barrier at terminations, obstructions, and penetrations to prevent air movement into roofing system. Seal vapor retarder/air barrier to air barrier in adjacent construction at perimeter of roofing system.

II. PART 1 - ADDENDUM TO THE DRAWINGS

219017.00 ADDENDUM NUMBER 1 00 90 01 - 2

A. See attached REVISED drawing with changes. ALL changes have been bubbled B. Sheet AR101 Roof Plan

1. Stone Copings a. Remove and replace sealant between all stone coping joints at Roof Area 1. New sealant shall be from

the face brick on the roof side, up and over the stone cap, to the face brick on the exterior side. See picture below

2. Clay Copings a. Remove all existing clay coping caps at Roof Area 1. Provide new wood blocking on top of existing

masonry wall. Blocking will need to be shimed to create a level top of wall. Anchor wood w/ ½” anchor bolts at 24” oc, grout into masonry wall. Cover wood with a SA membrane. Install new metal coping. See detail 17/AR104

3. Roof Area 8 a. We are not going to require the nailed base sheet. Contractor to prime the deck with the AVC primer and

then install the AVC membrane direct to the deck.

C. Sheet AR103 ROOFING DETAILS

1. Detail 11/AR103 and 12/AR103 a. Roof Drains

1) Existing roof drains to remain. Install NEW roof drain extensions, as to provide a min 4” depth of insulation at the drain bowl. Install NEW clamping ring, hardware and cast iron dome.

2. Detail 10/AR103

a. DELETE conductor head and downspout. Not required for overflow scuppers

D. Sheet AR104 ROOFING DETAILS 1. Detail 1/AR104

a. Ductwork from RTU to will will need to be removed to install new roofing. New ductwork should be provided to keep bottom of duct at least 8” above new membrane. New duct shall be insulated and wrapped to protect from weather.

219017.00 ADDENDUM NUMBER 1 00 90 01 - 3

Stone Coping at Smart School END OF SECTION

Addendum consists of 3 pages. Attachments : 5 Sheets G-001, AR-101, AR-102, AR-103, AR-104, Revision dated 01/23/19 1 Sign In Sheet

EXTENT OF NEWSEALANT AT EACHCOPING JOINT

ROOF NOTES

DISCLAIMER: THE FOLLOWING ROOF NOTES ARE PRESUMED TO BE ACCURATE AND ARE PROVIDED FOR INFORMATION PURPOSES ONLY. THE ROOFING CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE EXISTING ROOF SYSTEM CONSTRUCTION PRIOR TO THE TIME OF BIDDING.

1. THE GENERAL SCOPE OF WORK CONSISTS OF COMPLETE TEAR-OFF AND REPLACEMENT OF EXISTING ROOFING SYSTEMS ON AREAS OF NORTH HIGH SCHOOL AND SMART INTERMEDIATE SCHOOL AS INDICATED IN CONTRACT DOCUMENTS AND SPECIFICATIONS, INCLUDING SHEET METAL COPING, FASCIAS, GRAVEL STOPS, ETC.

2. THE ROOFING CONTRACTOR IS RESPONSIBLE TO VERIFY THE EXISTING ROOF SLOPES. THE CONTRACTOR SHALL MODIFY AND/OR IMPROVE THE ROOF SLOPES INDICATED TO MAINTAIN SLOPE TO ALL DRAINS. COORDINATE EXACT REQUIREMENTS IN FIELD.

3. CONTRACTOR SHALL PROVIDE TEMPORARY PROTECTION ON EXISTING ROOF SYSTEMS WHICH ARE IN CONTRACTORS PATH FROM ROOF ACCESS. ANY DAMAGE TO EXISTING ROOF SYSTEM SHALL BE REPAIRED AT CONTRACTORS EXPENSE.

GENERAL ROOF NOTES

CONSTRUCTION DRAWINGS1. DO NOT SCALE DRAWINGS. ROOFING CONTRACTOR TO FIELD MEASURE

ENTIRE EXISTING BUILDING.2. ISOMETRIC DRAWINGS ARE DIAGRAMMATIC ONLY.3. ALL EXISTING ROOF PENETRATIONS INCLUDING ROOF CURBS, VENT PIPES,

PORTAL CURBS, ETC. ARE TO BE EXTENDED, AS REQUIRED, TO BE A MINIMUM OF 8" ABOVE THE ROOF MEMBRANE SURFACE.

4. CONTRACTORS SHALL REPORT ALL DISCREPANCIES OR DIMENSION ISSUES TO THE ARCHITECT PRIOR TO PRODUCING SHOP DRAWINGS OR BEGINNING ANY WORK.

5. WHERE CONFLICTS EXIST WITHIN OR BETWEEN PARTS OF THE CONTRACT DOCUMENTS, OR BETWEEN THE CONTRACT DOCUMENTS AND APPLICABLE STANDARDS, CODES, ORDINANCES, AND REGULATIONS THE MORE STRINGENT OR HIGHER QUALITY OR GREATER QUALITY REQUIREMENT(S) SHALL APPLY. LARGE-SCALE DRAWINGS TAKE PRECEDENCE OVER SMALL-SCALE DRAWINGS; FIGURED DIMENSIONS TAKE PRECEDENCE OVER SCALED DIMENSIONS; AND NOTED MATERIALS TAKE PRECEDENCE OVER GRAPHIC REPRESENTATIONS.

6. THE ACTUAL AREA(S) OF WORK SHALL BE KEPT TO THE MINIMUM REQUIRED TO PROPERLY EXECUTE THE CONTRACT REQUIREMENTS. EXISTING DIMENSIONS AND HATCHED AREAS INDICATED ON CONTRACT DOCUMENTS ARE FOR GENERAL REFERENCE AND BIDDING PURPOSES ONLY.

7. THERE ARE TYPICAL DETAILS THAT ARE NOT TAGGED ON THE OVERALL ROOF PLAN AND ROOFING DETAILS FOR CLARITY. REFER TO SHEET ____ FOR TYPICAL DETAILS THAT THE CONTRACTOR IS RESPONSIBLE FOR.

8. ROOFING CONTRACTOR IS RESPONSIBLE FOR HIRING AN ELECTRICAL, MECHANICAL, AND PLUMBING CONTRACTOR AS REQUIRED TO COMPLETE THE SCOPE OF WORK OUTLINED IN THE CONTRACT DOCUMENTS.

9. REFER TO THE PROJECT MANUAL FOR PRODUCTS, MATERIAL AND PROCEDURES NOT IDENTIFIED ON THE DRAWINGS.

SHOP DRAWINGS1. FIELD VERIFY ALL EXISTING AND NEW CONDITIONS PRIOR TO SUBMITTING

SHOP DRAWINGS.2. CONSTRUCTION DOCUMENTS ARE NOT TO BE COPIED IN THE

PREPARATION OF SHOP DRAWINGS. ROOFING CONTRACTOR TO PREPARE SHOP DRAWINGS BASED ON SPECIFIC PROJECT.

BLOCKING1. ALL WOOD BLOCKING TO HAVE STAGGERED, MITERED, AND SCREW

FASTENED JOINTS.

GENERAL ROOF NOTES CONT.

SEALANT1. ALL EXPOSED FASTENERS/NAILS TO BE COVERED WITH SEALANT.2. APPLY MANUFACTURER'S SEALANT OVER FASTENER HEADS AT EPDM BASE

FLASHING SECUREMENT.3. ALL FLASHING FLANGES ARE TO BE SET IN SEALANT.4. FOLLOWING INSTALLATION OF THE FLASHING, APPLY SEALANT TO ALL

EXPOSED LEADING EDGES.5. ALL COUNTER FLASHINGS, COPING AND MISCELLANEOUS METAL FLASHING

PIECES ARE TO HAVE SEALANT APPLIED AT THEIR END CONDITIONS.6. ALL METAL FLASHING FLANGES ARE TO BE SET IN SEALANT.7. FOLLOWING INSTALLATION OF THE FLASHING, APPLY SEALANT TO ALL

EXPOSED LEADING EDGES.

SHEET METAL FLASHING1. INSTALL PREFINISHED METAL COPINGS, COUNTERFLASHINGS AND

MISCELLANEOUS SHEET METAL APPURTENANCES.2. PROVIDE COUNTER FLASHINGS FOR ALL VERTICAL FLANGES ON ENDWALL

FLASHING PIECES.3. WHEN CONDITIONS REQUIRE END WALL FLASHING TO BE INSTALLED,

COORDINATE INSTALLATION SO THAT END WALL FLASHING AND COUNTERFLASHING COVERING IT ARE NOT DOUBLE FASTENED - ONLY ONE FASTENER IS REQUIRED TO SECURE BOTH PIECES.

4. PROVIDE END WALL FLASHING WHERE COPING TERMINATES AT WALL HIGHER THAN THE COPING.

SCREWS AND FASTENERS1. ALL SCREW ANCHOR LOCATIONS TO HAVE PRE-DRILLED 5/16" PILOT HOLES.2. NON-EXPOSED NAIL FASTENERS TO BE 1-1/2" RING SHANK ROOFING NAILS.3. NON-EXPOSED SCREW ANCHORS INTO WOOD TO BE 1-1/4" X 3/16"

STAINLESS STEEL SCREWS.4. EXPOSED SCREW ANCHORS INTO WOOD TO BE NO. 14 X 1-1/2" LONG 18-8

AUSTENITIC STAINLESS STEEL TYPE 304 PAINT SCREW.5. SCREW ANCHORS INTO MASONRY ARE TO BE 1-1/4" X 3/16" TAPCONS WITH

CLIMASEAL CORROSION RESISTIVE COATING AND NEOPRENE WASHERS.6. EXPOSED SCREWS INTO SHEET METAL ARE TO BE 3/4" X 3/16" STAINLESS

STEEL SCREWS WITH NEOPRENE WASHERS.7. FASCIAS ARE TO BE NAILED AT 4" O.C. THROUGH PRE-DRILLED PILOT

HOLES. SET BACK FLANGE IN CONTINUOUS WATER CUT-OFF MASTIC.8. SCREW FASTEN WOOD BLOCKING AT 1'-0" O.C. STAGGERED.9. THROUGH BOLTED BLOCKING IS TO BE 2'-0" O.C. STAGGERED.10. SCREW FASTEN COPINGS AT 1'-0" O.C. COVER HEADS WITH SEALANT.

DECKING1. DO NOT INSTALL NEW ROOF IF CONDITION OF EXISTING DECK IS NOT

ACCEPTABLE TO ROOFING CONTRACTOR AND ROOFING SYSTEM MANUFACTURER. NOTIFY ARCHITECT IMMEDIATELY.

2. IN AREAS WHERE EXISTING ROOF DECK IS NOT PROPERLY SUPPORTED OR SAGGING UNDER PRESSURE, THOSE AREAS MUST BE INSPECTED BY ARCHITECT PRIOR TO ROOFING.

3. ENSURE DECK IS COMPLETELY CLEAN AND DRY BEFORE ROOF INSTALLATION.

4. PROVIDE TEMPORARY ROOF AS REQUIRED DURING CONSTRUCTION TO AVOID ANY WATER INFILTRATION INTO EXISTING BUILDING.

NEW ROOF LADDERS TO BE PROVIDED

PROVIDE THE FOLLOWING SCHOOLS WITH ROOF LADDER. ASSUME ALL LADDERS TO BE TWO SIDED. 3'0" PARAPET ON ONE SIDE AND THE LENGTH AS NOTED ON THE OTHER. REPAIR/REPLACEMENT:1. WEST HIGH SCHOOL TO RECEIVE ONE 18'0" NEW LADDER 2. WASHINGTON ELEMENTARY SCHOOL TO RECEIVE 5 NEW LADDERS

A. 2 - 6'0" LADDERSB. 1 - 9'0" LADDERC. 1- 17'0" LADDERD. 1- 18'0" LADDER

3. MID-CITY HIGH SCHOOL TO HAVE ONE LADDER REPAIRED.A. PROVIDE 2'0" EXTENSION TO BOTTOM PF LADDER

COORDINATE EXACT LOCATIONS AND MOUNTING REQUIREMENTS IN FIELD. CONTRACTOR SHALL VERIFY ALL MEASUREMENTS. REFER TO 2/AR-104 FOR ROOF LADDER DETAILS.

PROJECT NUMBER

DATE OF ISSUE

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ARCHITECT

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RELEASE

DATE OF ISSUE

ARCHITECT'S PROJECT NUMBER

DAVENPORT

SCHOOL

DISTRICT

2019 ROOFING

IMPROVEMENTS

SMART INTERMEDIATE SCHOOL

1934 WEST 5TH STREET,

DAVENPORT, IA 52802

NORTH HIGH SCHOOL

626 WEST 53RD STREET,

DAVENPORT, IA 52806

219016.00

12.19.2018

SK

MS

G-001

TITLE SHEET

ISSUED FOR BID

DAVENPORT SCHOOL DISTRICT

2019 ROOFING IMPROVEMENTSSMART INTERMEDIATE SCHOOL1934 WEST 5TH STREET, DAVENPORT, IA 52802

219016.00

12.19.2018

ISSUED FOR BID

NORTH HIGH SCHOOL626 WEST 53RD STREET, DAVENPORT, IA 52806

1515 5TH AVE, SUITE 108MOLINE, IL 61265P: 309.517.5536F: 309.517.5540

SITE LOCATION MAP

GENERAL DRAWINGS

G-001 TITLE SHEET

ARCHITECTURAL DRAWINGS

AR101 ROOF PLAN - SMART INTERMEDIATE SCHOOL

AR102 ROOF PLAN - NORTH HIGH SCHOOL

AR103 ROOFING DETAILS

AR104 ROOFING DETAILS

SCHEDULE OF DRAWINGSBOARD OF EDUCATION

RALPH JOHANSON, PresidentLINDA HAYES, Vice PresidentDANIEL GOSAJULIE DESALVOCLYDE MAYFIELDDR. ALLISON BECKBRUCE POTTS

TJ SCHNECKLOTH, Interim Superintendent

GENERAL PROJECT NOTES

SITE LOCATION MAP SMART INTERMEDIATE SCHOOLNORTH HIGH SCHOOL

NO. DESCRIPTION DATE

1 ADDENDUM 1 01.23.19

1

GENERAL ROOF NOTES

ALL INSULATION JOINTS, HORIZONTAL AND VERTICAL, ARE TO BE STAGGERED.

ALL INSULATION JOINTS GREATER THAN 1/4" ARE TO BE FILLED W/ INSULATION STRIPS.

ALL ROOF PENETRATIONS, INCLUDING VENT STACKS, ROOF CURBS, AND PIPE SUPPORT CURBS ARE TO BE A MINIMUM OF 8" ABOVE THE ROOFING MEMBRANE.

FIELD VERIFY ALL CONDITIONS PRIOR TO SUBMITTING SHOP DRAWINGS INCLUDING TAPERED INSULATION DRAWINGS W/ ALL DRAIN LOCATIONS.

ALL COUNTERFLASHING, COPING, AND MISC. METAL FLASHINGS PIECES ARE TO HAVE SEALANT APPLIED AT THEIR END CONDITIONS.

ALL EXPOSED FASTENERS TO BE CORROSION RESISTIVE, HAVE NEOPRENE WASHERS, AND BE COVERED W/ SEALANT FOLLOWING ARCHITECT'S APPROVAL.

APPLY SINGLE PLY MEMBRANE MANUFACTURER'S SEALANT OVER FASTENER HEADS AT BASE FLASHING SECUREMENT.

DRAINS TO BE FLASHED AS PER MANUFACTURER'S SPECIFICATIONS.

PROVIDE COUNTERFLASHING FOR ALL VERTICAL FLANGES ON ENDWALL FLASHING PIECES.

WHEN CONDITIONS REQUIRE END WALL FLASHING TO BE INSTALLED, COORDINATE INSTALLATION SO THAT END WALL FLASHING AND COUNTERFLASHING COVERING IT ARE NOT DOUBLE FASTENED - ONLY ONE FASTENER IS REQUIRED TO SECURE BOTH PIECES.

SCREW FASTENERS FOR INSULATION ARE TO BE INSTALLED THROUGH TOP FLUTES OF METAL DECK ONLY.

ALL WOOD BLOCKING TO BE MITERED AND SCREWED, UNLESS NOTED OTHERWISE.

ALL COPING JOINTS TO ALIGN WITH CENTER OF METAL PANEL JOINTS AND MULLIONS, UNLESS NOTED OTHERWISE.

NOT IN CONTRACT

GENERAL ROOF NOTES

1. ALL METAL FLASHING FLANGES ARE TO BE SET IN (2) TWO CONT. BEADS OF SEALANT.

2. ISOMETRIC DRAWINGS ARE DIAGRAMMATIC.3. FOLLOWING INSTALLATION OF THE FLASHING, APPLY SEALANT TO ALL

EXPOSED LEADING EDGES.4. ALL SCREW ANCHOR LOCATIONS TO HAVE PRE-DRILLED 5/16" PILOT

HOLES.5. NON-EXPOSED SCREW ANCHORS INTO WOOD TO BE NO. 14 X 1-1/2

LONG 18-8 AUSTENITIC STAINLESS STEEL TYPE 304 (PAINT) SCREW.6. EXPOSED SCREW ANCHORS INTO WOOD TO BE NO. 14 X 1-1/2 LONG 18-8

AUSTENITIC STAINLESS STEEL TYPE 304 PAINT SCREW.7. NON-EXPOSED SCREW ANCHORS INTO MASONRY ARE TO BE 1-1/4" X

3/16" STAINLESS STEEL SELF TAPPING SCREW FASTENERS.8. EXPOSED SCREW ANCHORS INTO MASONRY ARE TO BE 1-1/4" X 3/16"

STAINLESS STEEL SELF TAPPING SCREW FASTENERS WITH CLIMASEAL CORROSION RESISTIVE COATING AND NEOPRENE WASHERS.

9. EXPOSED SCREW FASTENERS INTO SHEET METAL TO BE 3/4" X 1/4" TEKS 1 WITH NEOPRENE WASHERS.

10. FIELD VERIFY ALL CONDITIONS PRIOR TO FABRICATION.11. ALL EXPOSED SCREW FASTENERS ARE TO BE COVERED WITH SEALANT

UNLESS NOTED OTHERWISE.

ROOF CONSTRUCTION NOTES

ROOF AREA: 1EXISTING CONCRETE DECK 1. REMOVE EXISTING ROOFING SYSTEM TO COMPLETE NEW SCOPE OF

WORK. 2. RAISE HVAC CURBS AND PLUMBING VENTS - AS REQUIRED.3. INSTALL SELF-ADHERED VAPOR BARRIER.4. INSTALL FACTORY-TAPERED INSULATION BOARDS FABRICATED TO SLOPE

OF 1/4 INCH PER 12 INCHES (1:48) UNLESS OTHERWISE INDICATED, SET IN INSULATION ADHESIVE.

5. INSTALL TWO (2) LAYERS OF 2.6" RIGID POLYISOCYANURATE INSULATION (R30 AVERAGE MINIMUM), SET IN INSULATION ADHESIVE.

6. ALL DRAINS SHALL HAVE MIN 4' SUMPS AT TWICE THE SLOPE OF ROOF, AND 8' WHERE POSSIBLE.

7. ADHERE FIBERBOARD CRICKET AS REQUIRED ON HIGH SIDE OF PROJECTIONS TO ELIMINATE ANY PONDING WATER.

8. INSTALL 1/2" COVERBOARD, SET IN INSULATION ADHESIVE.9. BASE SHEET- MOPPED10. THREE (3) ASPHALT PLY SHEETS- MOPPED.11. INSTALL INSULATION CANT STRIP AROUND PERIMETER.12. INSTALL PREFINISHED COPINGS, ENDWALL FLASHINGS,

COUNTERFLASHINGS, SCUPPER BOXES, AND EXPANSION JOINTS.

ROOF AREAS: 4, 8EXISTING CONCRETE DECK1. REMOVE EXISTING ROOFING SYSTEM TO COMPLETE NEW SCOPE OF

WORK.2. RAISE HVAC CURBS AND PLUMBING VENTS - AS REQUIRED.3. INSTALL PERIMETER ROOF EDGE WOOD BLOCKING TO PROVIDE

MANUFACTURERS RECOMMENDED FLASHING HEIGHTS.4. INSTALL SELF-ADHERED VAPOR BARRIER5. INSTALL ONE (1) LAYER OF 2.6" RIGID POLYISOCYANURATE INSULATION

(R-30 4' FROM DRAINS) - SET IN INSULATION ADHESIVE. STAGGER JOINTS.6. INSTALL FACTORY-TAPERED INSULATION BOARDS FABRICATED TO SLOPE



8. INSTALL 1/4" COVERBOARD, SET IN INSULATION ADHESIVE.9. INSTALL INSULATION CANT STRIP AROUND PERIMETER.10. INSTALL 60 MIL FULLY-ADHERED PVC/TPA MEMBRANE.11. INSTALL PREFINISHED COPINGS, ENDWALL FLASHINGS,


ROOF AREA 8

ROOF AREA 1

ERD

ERD

ERDERD

VP

VP

VP

VP

VP

VP

VP

VP

VP

VP

VP VP

VP

VP

VP

EP

EP

EP

EP

EP

EP

EP

EF

EP x3

13,225 SF

EXISTING ROOF CONSTRUCTION:STRUCTURALY SLOPED

1/2" HD WOODFIBER COVER BOARD IN HOT ASPHALTFULLY ADHERED EPDM

CONCRETE DECK

1100 SF

EXISTING ROOF CONSTRUCTION:FULLY ADHERED SINGLE PLY

3" TAPERED INSULATION

GYPSUM DECK

PP

PP

PP

PP

PP

PP

AR103

7TYP.

AR103

6

TYP.

AR103

11

AR103

11AR103

10

CHIMNEYCHIMNEY

CHIMNEY

9

AR103

RAISE

REMOVE ALL EXISTING CLAY

COPING AND REPLACE WITH

METAL COPINGRAISE SCUPPERS AS REQUIRED

FOR NEW INSULATION HEIGHTS

AR103

14

AR103

12

15

AR103

15

AR103

15

AR103

15

AR103

BUILD AND WRAP

PLYWOOD MEMBRANE

1

AR104

3

AR103

1

3

AR103

1

3

AR103

1

3

AR103

1

3

AR103

1

3

AR103

3

AR103

1

1

TYP.

1

AREA OF STRUCTURALLY SLOPED ROOF DECK OR EXISTING TAPERED INSULATION

AREA OF 1/4" OR 1/2" PER FOOT TAPERED INSULATION PROVIDE REQUIRED SLOPE FOR POSITIVE DRAINAGE

ROOF PLAN LEGEND

EP

EXISTING ROOF DRAIN

VENT PIPE ROOF PENETRATION

EFEXISTING EXHAUST CURB ASSEMBLY TO REMAIN. RAISE CURB AS NECESSARY TO MAINTAIN MINIMUM OF 8" BETWEEN TOP OF ROOF AND UNIT

EXPANSION JOINT. REFER TO DETAILS.

ELECTRICAL CONDUIT TO REMAIN. REFER TO DETAILS FOR PIPE SUPPORT.

EXISTING ROOF HATCH TO REMAIN. RAISE HATCH AS NECESSARY TO MAINTAIN MINIMUM OF 8" BETWEEN TOP OF ROOF AND HATCH

RTU EXISTING ROOF TOP UNIT TO REMAIN. PROVIDE TWO WAY TAPERED SADDLE (CRICKET) ON HIGH SIDE. REFER TO DETAILS.RAISE CURB AS NECESSARY TO MAINTAIN MINIMUM OF 8" BETWEEN TOP OF ROOF AND UNIT.

ERH

ERD

ROOF DRAIN - PROVIDE NEW ROOF DRAIN-REFER TO 18/AR302

RD

DUCTWORK

SUPPORT/ SADDLE CURB

HVAC ON CURB

ROOF HATCH

VP

ELECTRICAL PENETRATION

MU MECHANICAL UNIT

PROJECT NUMBER

DATE OF ISSUE

DRAWN BY

CHECKED BY

REVISIONS

DAT

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Legat Architects

25

DAVENPORT

SCHOOL

DISTRICT

2019 ROOFING

IMPROVEMENTS



DAVENPORT, IA 52802

219016.00

AR101

ROOF PLAN


3/32" = 1'-0" A-2011

ROOF PLAN


1 ADDENDUM 1 01.23.19

KEY PLAN

12.19.2018

SK

MS

AR104ISSUED FOR BID

GENERAL ROOF NOTES

ALL INSULATION JOINTS, HORIZONTAL AND VERTICAL, ARE TO BE STAGGERED.

ALL INSULATION JOINTS GREATER THAN 1/4" ARE TO BE FILLED W/ INSULATION STRIPS.

ALL ROOF PENETRATIONS, INCLUDING VENT STACKS, ROOF CURBS, AND PIPE SUPPORT CURBS ARE TO BE A MINIMUM OF 8" ABOVE THE ROOFING MEMBRANE.

FIELD VERIFY ALL CONDITIONS PRIOR TO SUBMITTING SHOP DRAWINGS INCLUDING TAPERED INSULATION DRAWINGS W/ ALL DRAIN LOCATIONS.

ALL COUNTERFLASHING, COPING, AND MISC. METAL FLASHINGS PIECES ARE TO HAVE SEALANT APPLIED AT THEIR END CONDITIONS.

ALL EXPOSED FASTENERS TO BE CORROSION RESISTIVE, HAVE NEOPRENE WASHERS, AND BE COVERED W/ SEALANT FOLLOWING ARCHITECT'S APPROVAL.

APPLY SINGLE PLY MEMBRANE MANUFACTURER'S SEALANT OVER FASTENER HEADS AT BASE FLASHING SECUREMENT.

DRAINS TO BE FLASHED AS PER MANUFACTURER'S SPECIFICATIONS.

PROVIDE COUNTERFLASHING FOR ALL VERTICAL FLANGES ON ENDWALL FLASHING PIECES.

WHEN CONDITIONS REQUIRE END WALL FLASHING TO BE INSTALLED, COORDINATE INSTALLATION SO THAT END WALL FLASHING AND COUNTERFLASHING COVERING IT ARE NOT DOUBLE FASTENED - ONLY ONE FASTENER IS REQUIRED TO SECURE BOTH PIECES.

ALL WOOD BLOCKING TO BE MITERED AND SCREWED, UNLESS NOTED OTHERWISE.

ALL COPING JOINTS TO ALIGN WITH CENTER OF METAL PANEL JOINTS AND MULLIONS, UNLESS NOTED OTHERWISE.

NOT IN CONTRACT

GENERAL ROOF NOTES

1. ALL METAL FLASHING FLANGES ARE TO BE SET IN (2) TWO CONT. BEADS OF SEALANT.

2. ISOMETRIC DRAWINGS ARE DIAGRAMMATIC.3. FOLLOWING INSTALLATION OF THE FLASHING, APPLY SEALANT TO ALL

EXPOSED LEADING EDGES.4. ALL SCREW ANCHOR LOCATIONS TO HAVE PRE-DRILLED 5/16" PILOT

HOLES.5. NON-EXPOSED SCREW ANCHORS INTO WOOD TO BE NO. 14 X 1-1/2

LONG 18-8 AUSTENITIC STAINLESS STEEL TYPE 304 (PAINT) SCREW.6. EXPOSED SCREW ANCHORS INTO WOOD TO BE NO. 14 X 1-1/2 LONG 18-8

AUSTENITIC STAINLESS STEEL TYPE 304 PAINT SCREW.7. NON-EXPOSED SCREW ANCHORS INTO MASONRY ARE TO BE 1-1/4" X

3/16" STAINLESS STEEL SELF TAPPING SCREW FASTENERS.8. EXPOSED SCREW ANCHORS INTO MASONRY ARE TO BE 1-1/4" X 3/16"

STAINLESS STEEL SELF TAPPING SCREW FASTENERS WITH CLIMASEAL CORROSION RESISTIVE COATING AND NEOPRENE WASHERS.

9. EXPOSED SCREW FASTENERS INTO SHEET METAL TO BE 3/4" X 1/4" TEKS 1 WITH NEOPRENE WASHERS.

10. FIELD VERIFY ALL CONDITIONS PRIOR TO FABRICATION.11. ALL EXPOSED SCREW FASTENERS ARE TO BE COVERED WITH SEALANT

UNLESS NOTED OTHERWISE.

ROOF CONSTRUCTION NOTES

ROOF AREA: 1EXISTING CONCRETE DECK 1. REMOVE EXISTING ROOFING SYSTEM TO COMPLETE NEW SCOPE OF

WORK. 2. RAISE HVAC CURBS AND PLUMBING VENTS - AS REQUIRED.3. INSTALL SELF-ADHERED VAPOR BARRIER.4. INSTALL FACTORY-TAPERED INSULATION BOARDS FABRICATED TO SLOPE


5. INSTALL TWO (2) LAYERS OF 2.6" RIGID POLYISOCYANURATE INSULATION (R30 AVERAGE MINIMUM), SET IN INSULATION ADHESIVE.

6. ALL DRAINS SHALL HAVE MIN 4' SUMPS AT TWICE THE SLOPE OF ROOF, AND 8' WHERE POSSIBLE.


8. INSTALL 1/2" COVERBOARD, SET IN INSULATION ADHESIVE.9. BASE SHEET- MOPPED10. THREE (3) ASPHALT PLY SHEETS- MOPPED.11. INSTALL INSULATION CANT STRIP AROUND PERIMETER.12. INSTALL PREFINISHED COPINGS, ENDWALL FLASHINGS,


ROOF AREA 6

13,800 SF

1

AR103

1

AR103

1

AR103

AR103

11

AR103

9

ERF

ERF

ERFERF

5

AR103

5

AR103

4

AR103

4

AR103

NEW ROOF LADDERAR104

2

EXISTING ROOF CONSTRUCTION:EPDM MEMBRANE

2"POLYISO4PLY BUILT UP ROOF W/ GRAVEL

3/4" FIBER GLASSCEMENT DECK

1

1

3

AR103

1

AREA OF STRUCTURALLY SLOPED ROOF DECK OR EXISTING TAPERED INSULATION

AREA OF 1/4" OR 1/2" PER FOOT TAPERED INSULATION PROVIDE REQUIRED SLOPE FOR POSITIVE DRAINAGE

ROOF PLAN LEGEND

EP

EXISTING ROOF DRAIN

VENT PIPE ROOF PENETRATION

EFEXISTING EXHAUST CURB ASSEMBLY TO REMAIN. RAISE CURB AS NECESSARY TO MAINTAIN MINIMUM OF 8" BETWEEN TOP OF ROOF AND UNIT

EXPANSION JOINT. REFER TO DETAILS.

ELECTRICAL CONDUIT TO REMAIN. REFER TO DETAILS FOR PIPE SUPPORT.

EXISTING ROOF HATCH TO REMAIN. RAISE HATCH AS NECESSARY TO MAINTAIN MINIMUM OF 8" BETWEEN TOP OF ROOF AND HATCH

RTU EXISTING ROOF TOP UNIT TO REMAIN. PROVIDE TWO WAY TAPERED SADDLE (CRICKET) ON HIGH SIDE. REFER TO DETAILS.RAISE CURB AS NECESSARY TO MAINTAIN MINIMUM OF 8" BETWEEN TOP OF ROOF AND UNIT.

ERH

ERD

ROOF DRAIN - PROVIDE NEW ROOF DRAIN-REFER TO 18/AR302

RD

DUCTWORK

SUPPORT/ SADDLE CURB

HVAC ON CURB

ROOF HATCH

VP

ELECTRICAL PENETRATION

PROJECT NUMBER

DATE OF ISSUE

DRAWN BY

CHECKED BY

REVISIONS

DAT

SIGNATUR

21 22 23 24

U

T

S

R

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 2016

Q

P

N

M

L

K

J

H

G

F

E

C

B

A

D

ARCHITEC

www.legat.com

Legat Architects

25

DAVENPORT

SCHOOL

DISTRICT

2019 ROOFING

IMPROVEMENTS



DAVENPORT, IA 52802

NORTH HIGH SCHOOL


DAVENPORT, IA 52806

219016.00

12.19.2018

SK

MS

AR102

ROOF PLAN - NORTH

HIGH SCHOOL

ISSUED FOR BID



1 ADDENDUM 1 01.23.19

1/8" = 1'-0" A-2011

ROOF PLAN

EXISTING PIPE

DISPOSE OF EXISTING SATELLITE1

EXISTING WALL ASSEMBLY

CANT STRIP

1 1/2" LONG GALVANIZED STEEL HEX HEAD SCREW WITH WASHER AT 18" O.C. BUR MEMBRANE

GRAVEL SURFACING

BASE FLASHING ANDSTRIPPING PLIES

SELF ADHERINGMEMBRANE

CONTINUOUS CLEAT

COVERBOARD

INSULATION BOARD

NEW WOOD BLOCKINGAS NECESSARY TO MAINTAIN

CONSISTANT EDGE HEIGHTAND ACCOMODATE INSULATION

EXISTING DECK

1 1/4" LONG GALVANIZED STEEL ROOFING NAIL AT 6" O.C.

24 GA PREFINISHED STEEL COPING CONFORMING TO ASTM A653 - SEE NRCA DETAIL UL-1 FOR

PROPER DETAIL AND ATTACHMENT

5" M

IN.

1

1

1

EXISTING DECK

EXISTING BRICKWALL ASSEMBLY

8" M

IN.

INSULATION BOARD

NEW SEALANT

EXISTING REGLETTO REMAIN

GRAVEL SURFACING

BUR MEMBRANE

COVERBOARD

CANT STRIP


TERMINATON BAR ORMETAL CAP NAILS

VAPOR RETARDER

TERMINATION BAR

SURFACE MOUNTED

GRAVEL SURFACING

BASE SHEET AND 3-PLY BUR

CONCRETE ROOF DECK

TWO-PLY

COUNTERFLASHING

SEE DETAIL 6/AR-104

FASTENED 8'' O.C.

1/2" WOODFIBER COVERBOARD

MODIFIED BITUMEN

STRIPPING

4'' MIN.

WOOD FIBER CANT

TAPE TO SPAN IRREGULARITIES

COMPRESSION BUTYL GASKET

SPECIFIED SEALANT TOOLEDNEATLY TO ENSURE 100%

ADHESION TAKES PLACE

NEATLY TO ENSURE 100%

ADHESION

SPECIFIED SEALANT TOOLED

BASE FLASHING

POLYISO INSULATION

MEMBRANE

BASE FLASHING BACKER SHT

SA VAPOR RETARDER

1


1 1/2" LONG GALVANIZEDSTEEL HEX HEAD SCREW WITH WASHER AT 18"O.C.

24 GA PREFINISHED STEEL COPING CONFORMING TO ASTM A653- SEE NRCA DETAIL UL-20 FOR PROPER

DETAIL AND ATTACHMENT

BUR MEMBRANE

GRAVEL SURFACING

EXISTING DECK


SELF ADHERINGMEMBRANE

CONTINUOUS CLEAT

COVERBOARD

INSULATION BOARDNEW WOOD BLOCKING (2'x4")

OR AS NECESSARY TOACCOMMODATE NEWINSULATION HEIGHT

GALVANIZED ANNULAR ORRING SHANK NAIL


FACE EXTENDER CONFORMING TO ASTM B209- SEE NRCA

DETAIL UL-35 FOR PROPER DETAIL AND ATTACHMENT

TOP OF FLANGE ROLLEDINTO PIPE +/- 1"

EXISTING PIPE PENETRATION

LEAD PIPE FLASHING

SEALANT

6" FLANGE SET INMASTIC OVER FIELD PILES

INSULATIONBOARD

STRIPPING PLIES

COVERBOARD

BUR MEMBRANE

GRAVEL SURFACING

EXISTING DECK

EXISTING PIPEPENETRATION

STRIPPING PLIES

6" FLANGE SET INMASTIC OVER FIELD PLIES

POURABLE SEALER

NON-SHRINK GROUT

22 GA. GALV. PAN

COVERBOARD

SEALANT

SEALANTBUR MEMBRANE

GRAVEL SURFACING

INSULATIONBOARD

EXISTING DECK

1

3 1/

2'' M

IN.

SPECIFIED INSULATION

ROOF DECK

FASTEN 18'' O.C. w/

SPECIFIED BUR MEMBRANE

NAIL WOOD CANT TO BLOCKING 2 ROWS STAGGERED EACH ROW 24"O.C.

4'' MIN.

NEOPRENE GASKETEDFASTENERS

JOINT COVER PLATESET IN TWO BEADSOF TREMCO SEALANT

CONTINUOUS CLEATFASTENED 16'' O.C.

1/2'' MIN.

10'-0'' MAX.

4'' -6''

SPECIFIED TWO-PLYSTRIPPING

FLASHINGTWO-PLY BASE

AS SPECIFIED

GRAVEL SURFACING

NOTES

1. SECURE COVER PLATE USING TWO FASTENERS WITH

NEOPRENE GASKETS AT THE CENTER OF EACH FASCIA SECTION

DOWNSPOUT

ROOF DECK

SPECIFIED INSULATION

SPECIFIED TREMCO

CONDUCTORHEAD

SCUPPER LINER

GRAVEL STOP

SEAL

DETAIL-A

DETAIL-B

SOLDEROR SEAL

B

A ROOFING

W

NOTES

1. MATCH EXISTING CONDUCTOR HEAD PROFILE AND SIZE.

2. W = NOMINAL WIDTH OF PARAPET

3. FABRICATE AND INSTALL COMPONENTS IN ACCORDANCE WITH

PROJECT SPECIFICATIONS AND SMACNA REQUIREMENTS AND

STANDARDS.

EXISTING MECHANICAL CURB

TF TAPE

PREFAB. INSULATEDMETAL CURB

REUSE EXISTINGCAP METAL

8" M

IN.

INSULATIONBOARD

GRAVEL SURFACING

BUR MEMBRANE

COVERBOARD

EXISTING DECK

1

CAST IRON DRAINBOWL ASSEMBLY

WOOD BLOCKING(AS NECESSARY)

CLAMPING RING

LEAD STIFFENINGPLATE

COVERBOARD

GRAVEL SURFACE

STRIPPING PLIES

BUR MEMBRANE

INSULATIONBOARD

DECK CLAMP AND FASTENER

DRAIN BOWL

TAPERED WOODFIBER BOARD

EXISTINGDECK

AR103

12

HOT AIR WELD

(ADHERED PER SPECIFICATION)

INSULATION PER SPECIFICATION

CONCRETE DECK, PRIME WITH

TREMPLY KEE MEMBRANE

ASPHALT PRIMER (AS SPECIFIED)

COVER BOARD(ADHERED IN TREMCO LOW RISEFOAM INSULATION ADHESIVE)

(ADHERED IN TREMCO LOW RISEFOAM INSULATION ADHESIVE)

NOTES

1. BOTTOM LAYER OF INSULATION SHALL BE LAID DOWN IN A STAGGERED PROFILE. STAGGER AND

OFFSET TOP LAYER OF INSULATION FROM BOTTOM LAYER TO PREVENT ALIGNED EDGES.

1

ADHERED IN TREMPLY KEE LV

BONDING ADHESIVE

TREMPLY KEE MEMBRANE FLASHING

OR SKYLIGHT

ROOF TOP UNIT

HOT AIR WELD

TREMPLY KEE

SPECIFICATION REQUIREMENTS

INSULATION ATTACHED PER

ATTACHED @ 250 LBF/FT

WOOD BLOCKING/CURB CONSTRUCTIONMEMBRANE

RING SHANK NAILS

GALVANIZED ANNULAR

(6" O.C.)

(3" O.C.)

GALVANIZED ANNULAR

RING SHANK NAILS

EPDM WASHERED FASTENER

AS REQUIRED

PREMOLDED CORNER

TREMPLY KEE FLASHING (FULLY ADHERED)

EPDM WASHERED FASTENERS (12" O.C.)METAL COUNTERFLASHING, FASTEN W/

MECHANICAL UNITAPPROVED SEALANTBEHIND TOP OF FLASHING

8" MIN.

NON-LIFTABLE

ALUMINUM TERM. / RESTRAINT BAR ATTACHED WITH APPROVED FASTENERS (8"O.C.) OR BARBED PLATES AND FASTENERS @ 8" O.C.

HOT AIR WELD


INSULATION ATTACHED or ADHERED PER SPECIFICATION

APPROVED SEALANT (TOOLED)

EXISTING THROUGH WALL FLASHING

METAL COUNTER FLASHING

TREMPLY KEE FLASHING

TREMPLY KEE LV BONDING ADHESIVE

APPROVED ALUMINUM TERMINATION BAR, FASTEN WITH APPROVED FASTENERS (8"O.C.)

APPROVED SEALANT (TOOLED)

1

EXISTING DECK

EXISTING METALWALL ASSEMBLY

8" M

IN.

INSULATION BOARD

EXISTING FLASHING TO REMAIN AND REUSE

EXISTING REGLETTO REMAIN

GRAVEL SURFACING

BUR MEMBRANE

COVERBOARD

CANT STRIP



VAPOR RETARDER

1

A SMOOTH TRANSITION AS REQ.

TREMPLY PLUS FASTENER(S)

& STRESS PLATE(S) 12" O.C.

AROUND SUMP AREA

EXTEND TREMPLY KEE NON-REINFORCED

MINIMUM OF 1/2" BEYOND

INSIDE OF CLAMPING RING

DRAIN ASSEMBLY

WITH CLAMPING RING

(BY OTHERS)

APPROVED SEALANT

TREMPLY KEE NON-REINFORCED MEMBRANE FLASHING

TAPERED INSULATION ATTACHED @ MIN. OF TWO FASTENERS PER BOARD

HOT AIR WELD


FIELD TAPER SUMP TO PROVIDE

NOTES1.

USE TAPERED ROOF INSULATION (EDGE STRIPS) TO CREATE DRAIN SUMP. IF TOTAL INSULATION

THICKNESS IS LESS THAN OR EQUAL TO 1 1/2 IN., TAPER 12 IN. FROM THE DRAIN CENTER. IF TOTAL

INSULATION THICKNESS IS GREATER THAN 1 1/2 IN., TAPER 18 IN. FROM DRAIN CENTER.

PROJECT NUMBER

DATE OF ISSUE

DRAWN BY

CHECKED BY

REVISIONS

DAT

SIGNATUR

21 22 23 24

U

T

S

R

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 2016

Q

P

N

M

L

K

J

H

G

F

E

C

B

A

D

ARCHITEC

www.legat.com

Legat Architects

25

DAVENPORT

SCHOOL

DISTRICT

2019 ROOFING

IMPROVEMENTS



DAVENPORT, IA 52802

NORTH HIGH SCHOOL


DAVENPORT, IA 52806

219016.00

12.19.2018

SK

MS

AR103

ROOFING DETAILS

ISSUED FOR BID



1 ADDENDUM 1 01.23.19

NOT TO SCALE AR1021

ROOF DETAIL

NOT TO SCALE2

ROOF DETAIL

NOT TO SCALE AR1023

ROOF DETAIL

NOT TO SCALE AR1024

ROOF DETAIL

NOT TO SCALE6

ROOF DETAIL

NOT TO SCALE7

ROOF DETAIL

NOT TO SCALE8

ROOF DETAIL

NOT TO SCALE10

ROOF DETAIL

NOT TO SCALE AR1029

ROOF DETAIL

NOT TO SCALE AR10211

ROOF DETAIL

NOT TO SCALE13

KEE-COMPOSITE ROOF SYSTEM (ADHEREDINSULATION)

NOT TO SCALE14

KEE-TYPICAL CURB FLASHING

NOT TO SCALE15

KEE- WALL FLASHING (BLOCKINGALTERNATE T-BAR RESTRAINT

NOT TO SCALE AR1025

ROOF DETAIL

NOT TO SCALE AR10312

KEE-TYPICAL DRAIN FLASHING WITHFLEECEBACK MEMBRANE

1

MEMBRANE FLASHING

PREFINISHED METAL COUNTERFLASHING RECEIVER WITH REVERSE HEM -FILL REGLET WITH SEALANT PRIOR TO INSERTION OF RECEIVER.

SCREWS WITH WASHERS 24" O.C. COLOR TO MATCH

8" M

INIM

UM

AB

OV

E

SU

RF

AC

E O

F S

ING

LE P

LY

ME

MB

RA

NE

NOTE:

1. TERMINATION BAR AND COUNTERFLASHING ARE TO BE INSTALLED HORIZONTALLY ACROSS WALL. 2. COORDINATE HEIGHT OF BASE FLASHING SO THAT AT HIGHEST POINT OF INSULATION THE TOP OF BASE

FLASHING IS 8" MINIMUM ABOVE THE SURFACE OF THE ROOF MEMBRANE & WITH THE ROOF EDGE TERMINATION AT THE WALL.

3. TERMINATION BAR MUST BE INSTALLED ON SAME DAY AS FLASHING.

PREFINISHED METAL COUNTERFLASHING

CONTINUOUS POLYURETHANE SEALANT

CONTINUOUS 1/8" X 1" ALUMINUM TERMINATION BAR W/MANUFACTURER APPROVED FASTENERS AT 12" O.C.

WATER CUT OFF MASTIC BETWEEN WALL AND ROOF MEMBRANE

REFER TO 4/A-521 FOR COUNTER FLASHING LAP JOINT DETAIL

WATER CUT OFF MASTIC

CONTINUOUS SELF ADHERED FLASHING LAP JOINTS MINIMUM 6"

VARIES

13

AR104

MEMBRANE FLASHING.

EXISTING WALL CONSTRUCTION

8" M

INIM

UM

AB

OV

E S

UR

FA

CE

OF

SP

M

NOTE:

1. TERMINATION BAR AND COUNTERFLASHING ARE TO BE INSTALLED HORIZONTALLY ACROSS MASONRY WALL. COORDINATE HEIGHT OF BASE FLASHING SO THAT AT HIGHEST POINT OF INSULATION THE TOP OF THE BASE FLASHING IS 8" MIN. ABOVE THE SURFACE OF THE ROOF MEMBRANE & WITH THE ROOF EDGE TERMINATION AT THE WALL.

2. TERMINATION BAR MUST BE INSTALLED ON SAME DAY AS EPDM BASE FLASHING.3. DO NOT COVER EXISTING THROUGH-WALL FLASHING OR WEEP HOLES - NOTIFY ARCHITECT IF OBSERVED.

5"

TAPCON SCREW FASTENERS WITH NEOPRENE WASHERS AT 1'-0" O.C. THRU PREDRILLED PILOT HOLES.

CONT. BUTYL CAULK TAPE BEHIND METAL COUNTERFLASHING

WATER CUT OFF MASTIC BETWEEN WALL AND EPDM

CONTINUOUS POLYURETHANE SEALANT

METAL COUNTERFLASHING

CONTINUOUS 1/8" X 1" ALUMINUM TERMINATION BAR W/ MANUFACTURER APPROVED FASTENERS @ 12" 0.C.

13

AR104

CONTINUOUS SEALANT

1 1/4" X 1/4" TAPCON SCREW FASTENER W/ CLIMASEAL CORROSION RESISTIVECOATING & NEOPRENE WASHERS @ 1'-0" O.C. THRU 5/16" PREDRILLED PILOT HOLES.

SINGLE PLY MEMBRANE LAP SEALANT

SINGLE PLY MEMBRANE LAP SEALANT BEHIND 1/8" THICK TERMINATION BAR

ROOFING SYSTEM MANUFACTURERAPPROVED FASTENER

CONTINUOUS 1/8" TERMINATION BAR

24 GA. PREFINISHED STEEL COUNTERFLASHING

MEMBRANE FLASHING

CONTINUOUS BUTYL CAULK TAPE BEHINDCOUNTERFLASHING

WATER CUT-OFF MASTIC BEHIND SINGLE PLY MEMBRANE FLASHING

5"NOTES: 1.

2.

TERMINATION BAR & COUNTERFLASHING ARE TO BE INSTALLED HORIZONTALLY ACROSS MASONRY WALL. COORDINATE HEIGHT OF BASE FLASHING SO THAT AT HIGHEST POINT OF INSULATION THE TOP OF THE BASE FLASHING IS 8" MIN. ABOVE THE SURFACE OF THE SINGLE PLY MEMBRANE.

TERMINATION BAR TO BE INSTALLED ATOP SPM BASE FLASHING ON SAME DAY BASE FLASHING IS INSTALLED.

13

AR104

1

3/4" GALV. STL. RUNGS@ 2" O.C. 2" ABOVE TOPOF COPING.

1 1/2" DIA. GALV. STEEL PIPE SIDE BARS. PAINT

GALVANIZED STEEL ANGLEBRACKETS W/ STAINLESSSTEEL EXPANSION ANCHORS@ 4' O.C. VERTICALLY,WATER CUT OFF MASTIC TOBE INSTALLED BEHINDBRACKETS, SEAL ALLEDGES W/ SINGLE PLY MEMBRANE LAPSEALANT.VERIFY LOCATION W/ARCHITECT

3/4" DIA. ABRASIVE GALV. STEEL RUNGS @ 1'-0" O.C.

2'-0" X 2'-0" X 2- 1/4" WALKWAY PAD

ROOF EDGE LINE

2'-0" X 2'-0" X 2-1/4" RUBBER WALKWAY PAD

V.I.F.

SECTION ELEVATION

6"

4'-0

" O

.C.

V.I.

F.

9"2'

-9"

3"

2'-0"

PREFINISHED METAL EXPANSION JOINT COVER

NOTE: SHEET METAL CONTRACTOR TO VERIFY SLOPE OF EXPANSION JOINT COVER

3/4"

RETURN FOR DRIVE CLEAT

5/16" PREDRILLED PILOT HOLE SCREW FASTENER LOCATIONS - TYPICAL

VARIES

RETURN 2X THE EXPANSION JOINT WIDTH

EXTEND AS REQUIRED TO

COVER THE EXPANSION

JOINT ASSEMBLY

EX

TE

ND

UP

UN

DE

R C

OU

NT

ER

FLA

SH

ING

A

ND

FA

ST

EN

WIT

H T

ER

MIN

AT

ION

BA

R

11

AR104

16

AR104

FULLY MITERED, DRIVE CLEATED CORNER


5/16" PREDRILLED PILOT HOLESCREW FASTENER LOCATIONS -TYPICAL

PREFINISHED METAL COPING

NOTE: SHEET METAL CONTRACTOR TO VERIFY ANGLE OF COPING CORNER IN FIELD.

SECTION OF DOUBLE S CLEATFOR VERT. COPING JOINT

VARIES

±2'-0" V.I.F

.±2'-0" V.I.F.

2"

VARIES

3/4"

SECTION OF DOUBLE S CLEATFOR VERT. COPING JOINT



5/16" PREDRILLED PILOT HOLE SCREW FASTENER LOCATIONS - TYPICAL

FULLY MITERED, DRIVE CLEATED CORNER WITH ROUNDED TAB

2. PROVIDE DOUBLE S CLEAT FOR VERTICAL COPING JOINT.

1. SHEET METAL CONTRACTOR TO VERIFY ANGLE OF COPING CORNER IN FIELD.NOTES:

VARIES

V.I.F.

±2'-0"

VARIES

V.I.F.

±2'-0"

3/4"

2"

PREFINISHED METAL FASCIANAIL FASTEN AT 4" O.C. - TYPICAL

CONTINUOUS PIECE OF PREFINISHED METAL FASCIA, BEND AROUND CORNER

NOTE:

1. SHEET METAL CONTRACTOR TO VERIFY ANGLE OF COPING CORNER IN FIELD.

REFER TO ELEVATIONS

V.I.F.

ADJUST AS REQUIRED TO ALIGN WITH

METAL PANEL SOFFIT JOINTS

VARIES

ADJUST AS REQUIRED TO ALIGN

WITH METAL PANEL SOFFIT

JOINTS

11

AR104

PREFINISHED METAL

5/16" PREDRILLED PILOT HOLESCREW FASTENER LOCATIONS - TYPICAL

FULLY MITERED, LAPPED, ANDWELDED CORNERS - TYPICAL

DUE TO PROJECTION ROOFS ON PLAN, DETAIL MAY NOT BE SHOWN FOR CLARITY. BUT IT WILL APPLY TO ALL END WALL CONDITIONS.

NOTE:

VARIES

8"

3/4"

2-3/8"

8"4"

VARIES

BENT FLANGE AT SIMILAR CONDITION

NOTE:REFER TO ROOF EDGE DETAILS FOR PROFILE OF END WALL FLASHING

6" WIDE PREFINISHED BACKER PLATE

CONTINUOUS SEALANTPREFINISHED METAL COPING

± 1/2"

STAINLESS STEEL SQUARE TO ROUND TRANSITION OR RAIN CAP

STAINLESS STEEL SCREW, WASHERS, AND NUT AT 3" O.C.

3" LAP (TYP.)

1-1/4" X 3/16" TAPCON SCREW FASTENERW/ CLIMASEAL CORROSION RESISTIVE COATING & NEOPRENE WASHERS @ 1'-0" O.C.

PREFINISHED METAL COUNTERFLASHINGCOVER FASTENERS W/SEALANT

CONTINUOUS SEALANT

INSTALL NO FASTENERS IN THIS AREA

PIPE SUPPORT CURB BYMIRO INDUSTRIES. STACK IF NECESSARY TO LEVEL PIPE.

12" x 12" x 2 1/4" THICKRUBBER WALKWAY PAD

ROOF SYSTEM

NOTE:

1. PIPE SUPPORT CURBS TO BE PLACED A MAXIMUM OF 8'-0" O.C.

ROOF TOP PIPING

1. WOOD BLOCKING

EX.) 2 x 4 - 2 SCREW FASTENERS

GALVANIZED WOOD DECK SCREW FASTENER- 2 PER EVERY 3-1/2"

2 X WOOD BLOCKING 2 X 8 - 4 SCREW FASTENERS

2 X 6 - 3 SCREW FASTENERS

2. COUNTERSINK SCREWS

NOTES:

5/8"

1/4"1/2"

CONT. BUTYL CAULK TAPE


1/2" ROUNDED DRIVE CLEAT TAB TO BE TURNED DOWN FOLLOWING DRIVE CLEAT INSTALLATION

6" WIDE PREFINISHED METAL BACKER PLATE

INSTALL CONT. BEAD OF SEALANT PRIOR TO INSTALLING DRIVE CLEAT

PREFINISHED METAL DRIVE CLEAT

RETURN

1/8"

EXISTING DECKEXISTING BRICKWALL ASSEMBLY

8" M

IN.

INSULATION BOARD

COVERBOARD

VAPOR RETARDER

EXISTING DUCTWORK TO BE REMOVED AND REINSTALLED

WOOD FRAMING WITH 3/4" PLYWOOD - WRAP WITH SINGLE

PLY MEMBRANE

EXISTING THROUGH WALL FLASHING

DUCTWORK ON SLEEPER


1 1/2" LONG GALVANIZED STEEL HEX HEAD SCREW WITH WASHER AT 18" O.C.SELF ADHERING MEMBRANE

CONTINUOUS CLEAT

NEW WOOD BLOCKINGAND SHIM TO PROVIDE

LEVEL TOP OF WALL

1 1/4" LONG GALVANIZED STEEL ROOFING NAIL AT 6" O.C.

24 GA PREFINISHED STEEL COPING CONFORMING TO ASTM A653 - SEE NRCA DETAIL UL-1 FOR

PROPER DETAIL AND ATTACHMENT

PROJECT NUMBER

DATE OF ISSUE

DRAWN BY

CHECKED BY

REVISIONS

DAT

SIGNATUR

21 22 23 24

U

T

S

R

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 2016

Q

P

N

M

L

K

J

H

G

F

E

C

B

A

D

ARCHITEC

www.legat.com

Legat Architects

25

DAVENPORT

SCHOOL

DISTRICT

2019 ROOFING

IMPROVEMENTS



DAVENPORT, IA 52802

NORTH HIGH SCHOOL


DAVENPORT, IA 52806

219016.00

12.19.2018

SK

MS

AR104

ROOFING DETAILS

ISSUED FOR BID


1 1/2" = 1'-0"5

COUNTERFLASHING THRU WALL FLASHING

AXON DETAIL

1 1/2" = 1'-0"6

AXON COUNTERFLASHING SURFACE MOUNT

6" = 1'-0"10

COUNTERFLASHING/SPM TERMINATION

DETAIL

3" = 1'-0" AR1022

ROOF LADDER DETAIL

1 1/2" = 1'-0"3

EXPANSION JOINT COVER DETAIL

1 1/2" = 1'-0"4

INSIDE COPING CORNER DETAIL

1 1/2" = 1'-0"7

OUTSIDE COPING CORNER DETAIL

1 1/2" = 1'-0"8

FASCIA CORNER DETAIL

1 1/2" = 1'-0"9

END WALL FLASHING DETAIL

1 1/2" = 1'-0" AR10411

VERTICAL COPING JOINT DETAIL

3" = 1'-0"12

FLUE SHEET METAL SEAM

1 1/2" = 1'-0" AR10413

TYPICAL COUNTERFLASHING LAP JOINT

1 1/2" = 1'-0"14

PIPE SUPPORT CURB DETAIL

1 1/2" = 1'-0"15

TYPICAL MITERED WOOD BLOCKING

1 1/2" = 1'-0" AR10416

HORIZONTAL COPING JOINT DETAIL

NOT TO SCALE1

ROOF DETAIL


1 ADDENDUM 1 01.23.19

NOT TO SCALE17

ROOF DETAIL

1

date: january 23, 2019 section 00 90 01 bidding and ...219017.00 addendum number 1 00 90 0 1 - 3...

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