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INTRODUCTION TO INTRODUCTION TO POST-FRAME

BUILDING SYSTEMSPREPARED BY PREPARED BY

HARVEY B. MANBECK, P.E., PHD

TECHNICAL ADVISORNATIONAL FRAME BUILDING ASSOCIATION (NFBA)

PROFESSOR EMERITUS PENN STATE UNIVERSITY

COPYRIGHT @ 2011 BYCOPYRIGHT @ 2011 BYTHE NATIONAL FRAME BUILDING ASSOCIATION

“The Wood Products Council” is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this program will be

t d t AIA/CES f AIA b C tifi t f C l ti freported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

This program is registered with AIA/CES for continuing professionalThis program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using,material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

Questions related to specific materials methods and services will beQuestions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

LEARNING OBJECTIVES

• Identify the versatility and range of applications for post-frame (PF) building systems

• Identify the structural features that make PF building t isystems unique

• Identify the available resources for design of PF building systemsPF building systems

• Identify the primary design approaches for PF building systemsPF building systems

• Identify key performance characteristics of PF building systemsg y

WHAT DOES A PFBUILDING LOOK LIKE?

WHAT IS PF BUILDING USED FOR?

RESTAURANT AND RETAIL

CHURCHES COMMERCIAL

COMMUNITY BUILDINGS MUNICIPAL BUILDINGS

RESIDENTIAL AGRICULTURAL AND HORSE FACILITIES

POST-FRAME (PF) BUILDING

• PF systems are different from traditional

( )

• PF systems are different from traditional post and beam construction Th diff ill t t d i th f ll i • The differences are illustrated in the following series of slides

POST AND BEAM CONSTRUCTION ELEVATION

Girder (Beam)

PostPinned Connection

Girder (Beam)

Floor

Concrete Pier

Continuous Footingor Pier Foundation

POST AND BEAM CONSTRUCTION PLAN VIEW

Post Girder (Beam) PurlinPost Girder (Beam) Purlin

PF BUILDING SYSTEM PICTORIAL VIEW

P li

Sheathing

Purlins

Truss

Wood ColumnsWall Girts

Alternative Post Foundations

PF BUILDING SYSTEMPLAN VIEW

PurlinPurlin

Post

Girder (Header)

Clear Span Truss

PF BUILDING SYSTEMCROSS SECTION

X section TrussX-sectionPurlins

Truss

Girts

Eave Height Post Height

Sidewall Post

Eave Height

Clear Span

Post Height

Splashboard Post Foundation

P F iPost Footing

PF BUILDING SYSTEM

• Wood sidewall postsFEATURES

p• Wide bay (post) spacing—8 ft and greater• Large clear spans More than 100 ft • Large clear spans—More than 100 ft • Embedded wood post or concrete piers can

b ildi f d tiserve as building foundation• Attached wall and roof sheathing/cladding form

structural shear wall/structural diaphragm system

WOOD SIDEWALL POSTS• Usually wood posts• Either solid-sawn, glue-laminated (glulam) or

mechanically (nail) laminated• Typically nominal 6-x-6, 6-x-8, 8-x-8, or 8-x-10

cross sectionc oss sect o• Usually spaced 4, 6, 8, 12 or 16 ft on center

along sidewallalong sidewall• Portion of post embedded into ground (plus

6 12 in above ground) is preservative treated6–12 in. above ground) is preservative treated

GLUE-LAMINATED (GLULAM)

• Spliced glulam post

( )WOOD POST

• Spliced glulam post– 3 or 4 ply, fabricated with 2x lumber

l ti ti t t d – lower portion preservative treated; upper portion untreated

NAIL-LAMINATED POSTS

Preservative-treated section spliced to untreated portion

NAIL-LAMINATED POSTS

Nail-laminated posts with treated bottom spliced to bottom spliced to untreated top

Preservative-treated splash treated splash board

HYBRID OPTIONSNail-laminated posts attached to precast concrete pier foundation above ground linepier foundation above ground line

PRESSURE-PRESERVATIVE TREATMENTS

For posts embedded in ground, specify use

t UC4B b tt category UC4B or better per AWPA-U1-XX (e g CCA@0 60 pcf)(e.g., CCA@0.60 pcf)

POST FOUNDATION OPTIONS

• Preservative-treated post embedded directly into Preservative treated post embedded directly into ground

• Precast reinforced concrete piersp• Cast-in-place concrete piers, foundation walls,

or thickened slabs • Wood protection systems for embedded wood posts

– High-density polyethylene plastic barriersBlow molded plastic barriers– Blow-molded plastic barriers

– Polyethylene sleeves and footing forms– Asphalt- and polyethylene-based wrapsp p y y p

EMBEDDED TREATED POST• Embedment provides

lateral and vertical support lateral and vertical support for building

• Typically embedded 3.5–5 ft-depth

• Bottom concrete collar or wood cleat improves uplift wood cleat improves uplift resistance of post

• Post hole typically 24–30 yp yin. diameter; back-filled with well-graded gravel, sand, or excavated soil,

PRECAST REINFORCED CONCRETE PIER

• Precast reinforced concrete pier with post attached above grade

• Entire assembly pre-engineered

• Assembly usually fabricated in f t d hi d t it factory and shipped to site as a single unit

PRECAST REINFORCED CONCRETE PIER

Connection details for a typical precast reinforced-concrete post foundation

CAST-IN-PLACE CONCRETE PIER

• Post attached to top of embedded cast-in-place concrete pier above ground lineground line

• Connection must be designed to transfer the shear and moments transfer the shear and moments from the post-frame

• Pier embedment and lateral soil resistance distribution similar to that for a post embedded directly in the groundin the ground

POST LATERAL RESISTANCE CONSTRAINED POST

Ma

Zero Horizontal Displacement (Center of Rotation)

Constrained post Ground Level Va

restrained from lateral displacement at the ground line

Floor

d

Zero Horizontal Displacement

at the ground line by the floor slab Resultant Soil

Force Post

d

FootingSoil forces gSoil forces

POST LATERAL RESISTANCEUNCONSTRAINED POST

Up to ½ Inch Displacement

Unconstrained post is Va

Ma

Ground Level

Up to ½ Inch Displacement

not prevented from displacing horizontally at the ground line d0

Resultant Soil Forcethe ground line

dd0 Soil Force

R t ti A iResultant Soil Force

Rotation Axis

CAST-IN-PLACE CONCRETE FOUNDATION WALL

• Post attached to 6 in. or wider cast-in-place

t f d ti llconcrete foundation wall

• Solid-sawn, nail-laminated, l l t tt h d t or glulam posts attached to

top of foundation wall 18–24 in above grade and are 24 in. above grade and are usually untreated

THICKENED CONCRETE SLAB

• Post set on thickened edge of a concrete floor slab

• Thickened portion of slab reinforced

• Post typically untreatedyp y

THICKENED CONCRETE SLAB PROTECTIVE POST COVERS

• Blow-molded plastic barriers • Provides moisture and insect

protection• “Enhances protection of Enhances protection of

copper-based, chemical-treated wood posts or laminated wood posts or laminated columns”

ROOF FRAMING• Pre-engineered metal plate connected 2x lumber

trusses typically spaced 4 8 ft on centertrusses typically spaced 4–8 ft on center– sometimes double trusses used on wider clear spans

H i ti b ( lid d l l ) • Heavier timber (solid-sawn wood or glulam) trusses for larger post and truss spacings

• Solid-sawn wood rafters spaced 2–4 ft on center for shorter clear spans

• Glulam or structural composite lumber (SCL) rafters for larger rafter spacings or clear spans g p g p

ROOF FRAMINGSetting pre-engineered wood trusses for a t i l PF b ilditypical PF building

POST-TO-ROOF FRAMING CONNECTIONS

• Posts are connected directly to the roof framing if post and roof-framing spacing are the same

• Posts and roof framing are often connected to header beams if post and roof-framing spacing p g p gare not the same

NAIL-LAMINATED POST

• Typical for a nail-laminated post-to-truss connectionCONNECTIONS

Typical for a nail laminated post to truss connection• Connection is usually a pinned connection

Block BlockBlock Height

Block

NAIL-LAMINATED POSTCONNECTIONS

Post-to-truss connection for a nail-laminated post application

NAIL-LAMINATED POST CONNECTIONS

Post-to-truss connection for a nail-laminated post application

SOLID-SAWN POST CONNECTIONS

Typical post-to-truss connection

details for a solid-sawn post

li tiapplication

1½” Connection with truss

Connection with truss fastened to side of post

bearing on notch in post

fastened to side of post and with bearing block

HEADER CONNECTIONS

Schematic of typical connection details forpost to header and

fheader to roof truss

HEADER CONNECTIONS

Typical roof framing to header

ti d t il connection detail with blocking placed between placed between parallel header beamsbeams

HEADER CONNECTIONS

Typical header to post and post-to-post and post totruss connection details

ROOF PURLINS

• Typically 2 x 4 or 2 x 6• Typically 2 x 4 or 2 x 6• Solid-sawn lumber placed flat or “on-edge” on

t f t ft b t ft top of trusses or rafters or between rafters or upper chords of trusses

ROOF PURLIN PLACEMENT• Purlins placed either on top or inset between truss top chords or

inset between roof rafters inset between roof rafters • Purlins oriented flat or “on-edge”

depending upon truss andpurlin spacing

ROOF FRAMING AND PURLINS

Typical PF system showing pre-engineered roof trusses attached to post and roof purlins attached to top of the attached to top of the truss chords

WALL GIRTS

• Typically 2 x 4 to 2 x 8 solid sawn lumber • Typically 2-x-4 to 2-x-8 solid-sawn lumber spaced 24–32 in. apartPl t d i t ti• Placement and orientation– Oriented flat on outside face of wall post

(f ll t d i t i d l d )(for smaller post and girt spacings and loads)OR– Oriented “on-edge” between adjacent posts

(for larger loads and/or post or girt spacings)

SHEATHING OPTIONS

• 26 to 29 gauge ribbed metal sheathing• 26- to 29-gauge ribbed-metal sheathing• Wood structural panels

WALL GIRTS AND SHEATHING

Typical wall girt and metal h thi sheathing

application to PF building system building system

WALL GIRTS AND SHEATHING

PF system with wall girts and

d t t l wood structural panel sheathing attachedattached

EXTERIOR FINISHES ARCHITECTURAL FEATURES

ARCHITECTURAL STYLES ROOF TRUSS AND

• Corner bracing in upper chords of trussesLATERAL WIND BRACING

• Corner bracing in upper chords of trusses• Diagonal bracing for lower chords of trusses

L h d tiff f t• Lower chord stiffeners for trusses• X-bracing of selected compression webs• Continuous longitudinal bracing or T-Bracing of

long-compression webs and chords of trusses

TRUSS BRACING

• Guide to Good Practices for Handling Installing • Guide to Good Practices for Handling, Installing, Restraining and Bracing of Metal-Plate Connected Wood Trusses (WTCA & TPI)Wood Trusses (WTCA & TPI)– B1 and B3, summary sheets on handling and

bracing wood trusses spacing <= 24 in o cbracing wood trusses, spacing 24 in. o.c.– B10, summary sheet on “Post-Frame Truss

Installation and Temporary Restraint/Bracing”s a a o a d e po a y es a / ac g* 4 and 8 ft o.c. truss spacing

ENERGY EFFICIENCY

• PF buildings are exceptionally easy to insulate to • PF buildings are exceptionally easy to insulate to higher levels (R = 20 to 35) required by energy codes with wide range of typical batt blown-in or codes with wide range of typical batt, blown in, or board insulation materials – Large on center post spacing (>4 ft o c )Large on center post spacing (>4 ft o.c.)– Large wall cavity thickness (6–10 in. typical) are

inherently built into PF without special featuresinherently built into PF without special features

REDUCED THERMAL BRIDGING

• Thermal bridging effects are minimal in PF• Thermal bridging effects are minimal in PF– Large spacing (4–10 ft) between wall posts

Thermal resistance of the 6 10 in ood post at – Thermal resistance of the 6–10 in. wood post at insulation breaks is significant (R = 7.5 to 12.5)

ENERGY EFFICIENCY

• Wall and roof framing• Wall and roof framingmembers typicallyspaced 4 to 16 ft o.c.p

• Fewer breaks in thermalinsulation barrier

ENERGY EFFICIENCY

Thicker wall cavities inherently available due to use of nominal 6x to 10x posts in sidewalls

CODE COMPLIANCE

• PF foundations included in Chapter 18 of IBC • PF foundations included in Chapter 18 of IBC 2006 & 2009 (lateral soil resistance and wood preservative treatment requirements)preservative treatment requirements)

• Key PF diaphragm design and other practices f th A i S i t f A i lt l d from the American Society of Agricultural and Biological Engineers (ASABE) cited in Sections 2306 1 f IBC 2006 & 2009 2306.1 of IBC 2006 & 2009

ENGINEERING DESIGN

• ASAE/ANSI EP 484 Diaphragm design of PRACTICES

• ASAE/ANSI EP 484, Diaphragm design of metal-clad, post-frame rectangular buildingsASAE/ANSI EP 486 Sh ll t • ASAE/ANSI EP 486, Shallow post foundation design

• ASAE/ANSI EP 559, Design requirements and bending properties for mechanically laminated columns

NFBA TECHNICAL RESOURCES

• Accepted Practices for Post Frame Building • Accepted Practices for Post-Frame Building Construction: Framing Tolerances

• Accepted Practices for Post Frame Building • Accepted Practices for Post-Frame Building Construction: Metal Panel and Trim Installation Tolerances Tolerances

• Post-Frame Construction GuideNFBA• www.NFBA.org

NFBA TECHNICAL RESOURCES

• Guide Specification forPost-Frame Building Systems

D l d b h NFBA – Developed by the NFBA Technical Committee

– Follows Masterspec format– Auto generates a spec customized

to user’s needs– Available online at www.PostFrame

Advantage.com and www.nfba.org

PF BUILDING DESIGN MANUAL

St t l d i d• Structural design proceduresfor PF building systems

PF designer’s primary – PF designer s primary reference

– www.NFBA.orgg

PRIMARY DESIGN APPROACHES

• Two-dimensional (2-D) frame design method• Three-dimensional (3-D) diaphragm design method• Covered in Structural Design of PF Building

Systems (Online University and Webinars)y ( y )• www.postframeadvantage.com

PF RESPONSE TO LATERAL LOADS W/O DIAPHRAGM ACTION

• Without diaphragm action each PF carries the full lateral wind load applied to tributary area of the frame

• Each PF sways an amount Δ at the eave• Each PF sways an amount, Δ at the eave

ΔWind Direction

PF RESPONSE TO LATERAL LOADS WITH DIAPHRAGM ACTION

Δ1 < Δ• Portion of design lateral loading on sidewall and roof is transferred to the Wi d Di i

vv

v Vr2

vv

vV/2

roof is transferred to the roof diaphragm

• The diaphragm exerts a

Wind Direction

∆1

Vr2Vc2

Vr2Vc2

vv

vv

vv

v

p gresisting distributed shear force, v, to the post frame

• The PF sway at

V1 (portion of wind load to endwall)

• The PF sway at the eave is Δ1 < Δ(sway of the PF without diaphragm

1 (p )action)

PF BUILDINGDESIGN METHODS

• Advantages of diaphragm design in PF– Smaller sidewall postsp– Shallower post or pier embedment depths

DIAPHRAGM DESIGN METHOD

• Diaphragm design is used for nearly all modern PF building systems with enclosed end walls

d id ll and sidewalls – More economical design– Greater structural integrity– More durable PF structures

2-D FRAME DESIGN METHOD

• 2-D frame method required for:– PF with open sidewalls or end walls– PF with L:W ratio greater than 2 to 2.5 between

shearwalls– PF without adequate structural detailing or

connection details to develop proper load paths for t f f i l h f i d b t th transfer of in-plane shear forces in and between the roof diaphragm and the shear walls

SUSTAINABILITY

• Primary construction materials wood and steel • Primary construction materials—wood and steel cladding—are both recyclable

• Wood the primary construction material in PF • Wood—the primary construction material in PF buildings—is a renewable forest resourcePF construction is inherently friendly to energy• PF construction is inherently friendly to energy-efficient construction for the reasons noted earlier in the presentationthe presentation

DURABILITY AND RELIABILITY

• With properly designed and installed post • With properly designed and installed post foundations, durability of PF equals that of any well-engineered wood-framed building systemwell engineered wood framed building system

• Keys to PF durability– Specify appropriate preservative treatment systems Specify appropriate preservative treatment systems

for all wood in ground contact– Use one of the post foundation options that

eliminates ground contact for any wood structural elements

DURABILITY AND RELIABILITY

• PF buildings are durable and reliable if• PF buildings are durable and reliable if– designed by a qualified design professional

constr cted b an e perienced PF contractor– constructed by an experienced PF contractor– constructed in compliance with the two previously

cited construction tolerance guidelines published cited construction tolerance guidelines published by NFBA

OTHER PF BUILDING ATTRIBUTES

• PF is a cost effective option• PF is a cost-effective option– Minimal framing material requirements

Minimal footing and fo ndation material – Minimal footing and foundation material requirementsSpeed of construction (short time from start of – Speed of construction (short time from start of construction to occupancy)Construction delays due to cold weather constraints – Construction delays due to cold weather constraints are minimal

EXAMPLES OF PF BUILDING

COMMERCIAL APPLICATIONS

•Function and size: Office building, 16,000 sq ft•Posts: 3 ply, 6 x 6 glulam posts, 6 ft o.c.; 0.6 pcf CCA

below grade, 0.4 pcf above ground•Post foundation: Post embedded in ground•Roof framing: 42–78 ft hip roof 24 in o c ; OSB sheathingRoof framing: 42 78 ft hip roof, 24 in. o.c.; OSB sheathing•Wall girts: 2 x 4, 16 in. o.c., flat•Insulation: R-19 in walls; R-40 in ceiling•Exterior finish: Glass and cultured stone•Interior finish: Painted drywall and acoustical tile

• Cost: $82/sq ft (2003)

• Location: Grand Rapids, MI

•Function and size: Veterinary clinic, 48 ft x 125 ft (6,000 sq ft)•Posts: 3 ply, nominal 6 x 6 nail-lam posts, 7 ft 6 in. o.c.•Post foundation: Posts set on concrete foundation wall•Roof framing: 48 ft clear span trusses, 7 ft 6 in. o.c.;

2 x 4 purlins on edge, 24 in o.c.p g ,•Wall girts: 2 x 4 and 2 x 6, 32 in o.c., flat•Insulation: R-19 in walls; R-38 in ceilingE t i fi i h Ribb d t l f l /b i k ll•Exterior finish: Ribbed steel roof panels/brick walls

•Interior finish: Drywall and suspended ceilings

Constr ction Time 6 months• Construction Time: 6 months• Cost: $150/sq ft (2007)• Location: Mattoon, IL

•Function and size: Church, 118 ft x 168 ft, 19,000+ sq ft•Posts: 4 ply, 6 x 8 nail-lam posts, 7 ft 6 in. o.c. •Post foundation: 6 in. x 4 ft cast-in-place concrete foundation wall•Roof framing: Double 2x trusses, 7ft. 6 in o.c.; 2 x 4 purlins on

edge, 24 in o.c.g•Wall girts: 2 x 6, 32 in o.c., flat•Insulation: R-19 in walls; R-38 in ceiling•Exterior finish: Painted steel siding; brick wainscot in selected •Exterior finish: Painted steel siding; brick wainscot in selected

areas •Interior finish: Sheetrock with acoustical steel in gymnasium area

• Construction Time: 6 months• Construction Time: 6 months• Cost: $84/sq ft (2002)• Location: Salina, KS

•Function and size: Childcare center, 66 ft x 138 ft, 9,100 sq ft•Posts: 3 ply, 4.5 x 7.5 in. nail-lam, 6 ft o.c.; ACQ

preservative treatment•Post foundation: Posts set on a cast-in-place foundation wall•Roof framing: Single 2x trusses, 6 ft o.c.; heavy timber trusses; Roof framing: Single 2x trusses, 6 ft o.c.; heavy timber trusses;

rafters; 2 x 4 purlins on edge, 22 in. o.c.•Wall girts/sheathing: 2 x 4, 24 in. o.c., flat, 0.5 in. OSB•Insulation: R 30 in walls; R 50 in ceiling•Insulation: R-30 in walls; R-50 in ceiling•Exterior finish: Hardi-Plank •Interior finish: Sheetrock and suspended ceiling

• Construction Time: 4 5 months• Construction Time: 4.5 months• Cost: $86/sq ft (2006)• Location: Prescott, WI

•Function and size: Volunteer Fire Company, 80 ft x 100 ft, 8,000 sq ft•Posts: 3 ply, 4.5 x 7.5 in. nail-lam, 8 ft o.c.; 0.8 pcf CCA

i b /b l dpreservative treatment above/below ground•Post foundation: Posts embedded in ground •Roof framing: Single 2x, 80-ft clear span trusses, 8 ft o.c.; 2 x 4 g g p

purlins on edge, 24 in o.c.•Wall girts/sheathing: 2 x 4, 30 in o.c., flat•Insulation: R-30 in walls; R-38 in ceilingInsulation: R 30 in walls; R 38 in ceiling•Exterior finish: 26-gauge painted ribbed steel•Interior finish: Steel sheathing in bay; sheetrock and suspended

ili i ffi ceilings in office areas

• Construction Time: 6 mos.Cost: $70 / sq ft (2007)• Cost: $70 / sq. ft (2007)

• Location: Lexington, NC

•Function and size: Educational Center, 64 ft x 112 ft, 7,200 sq ft•Posts: Solid sawn 6 x 6 posts, 8 ft o.c.; CCA at 0.6 pcf •Post foundation: Embedded posts attached to 12 in. Φ concrete footer •Roof framing: Single, 64-ft trusses, 2 ft o.c.; OSB sheathing

attached to truss chordsattached to truss chords•Wall girts/sheathing: 2 x 4, 24 in o.c., flat; 7/16 OSB •Insulation: R-24 in walls; R-30 in ceilingE i fi i h L idi ibb d l f•Exterior finish: Log siding; ribbed steel roof

•Interior finish: Drop ceiling in parts; drywall in parts; some exposed wood

• Construction Time: 6 monthsCo s uc o e 6 o s• Cost: $72/sq ft (2007)• Location: Medina, OH

•Function and size: Retail sales store, 42 ft x 90 ft + 38 x 60 ft pavilion, 4,800 sq ft

•Posts: 3 ply 4 5 x 5 5 in nail-lam 9 ft o c ; CCA @ 0 6 pcf Posts: 3 ply, 4.5 x 5.5 in. nail lam, 9 ft o.c.; CCA @ 0.6 pcf above and below ground

•Post Foundation: Posts embedded 4.5-ft below grade and set on cast-in-place concrete footer pad

•Roof framing: 42 ft clear span 2x trusses, 4.5 ft o.c.; 2 x 4 purlins flat wise, 24 in o.c.

•Wall girts/sheathing: 2 x 4, 24 in. o.c., flat; 1 in. cedar plank T&G cedar siding•Insulation: R-19 in walls; R-38 in ceiling•Exterior finish: Architectural shingles on roof; rough cedar plank

and T&G cedar sidingI t i fi i h D ll d ili i ll li i d li •Interior finish: Drywall; drop ceiling; pine wall liners in deli area;

FRP liner food coolers/baths

• Construction Time: 98 days • Cost: $93/sq ft (2002)• Location: Old Forge, NY

• Function and Size: Foundation center, 64 ft x 190 ft + 72 ft x 208 ft; 27,000 sq ft • Posts: 3 ply, 4.5 x 7.5 in. nail-lam posts, 7.5–8 ft o.c.; untreated• Post Foundation: Posts attached to concrete foundation wall• Roof framing: 64–72 ft clear span double 2x trusses, 7.5–8 ft

o.c.; 2 x 4 purlins edgewise, 24 in. o.c.• Wall girts/sheathing: 2 x 6, 30 in o.c., flat; 29-gauge ribbed steel• Insulation: R-19 in walls; R-38 in ceiling• Exterior Finish: Painted metal roofing and sidingExterior Finish: Painted metal roofing and siding• Interior Finish: Drywall, block and painted steel

• Construction Time: 150 days• Cost: $140/sq ft (2007)• Location: Joliet, IL

APPLICATIONS OF PF BUILDINGS

…ARE LIMITED ONLY BY THE DESIGNER’S IMAGINATION AND CREATIVITY

This concludes The American Institute of Architects Continuing

Ed ti S t C

QUESTIONS AND COMMENTS?Education Systems Course

• National Frame Building

QUESTIONS AND COMMENTS?g

Association (NFBA)• www.NFBA.orgg• www.PostFrameAdvantage.com• NFBA• NFBA

4700 W Lake AveGlenview, IL 60025Glenview, IL 60025

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