888.565.9181 • www.TrusSteel.com Truss Design Manual

1 The World Leader in Cold-Formed Steel TrussesTruss Design ManualV2a division of ITW Building Components division of ITW Building Components GroupTruss Design ManualTRUSS Design & & Components & Code & TrusSteel & / Codes & Design Required for Truss & Resistance & as Building Truss Systems - Truss Systems - Sample Truss Specifications Copyright 2012 ITW Building Components Group, Design Manual is intended as a guide to building professionals for suggested uses of TrusSteel trusses. The building code of jurisdiction and a Truss designprofessional should be consulted before incorporating information from this publication into any plan or Building Components Group, Inc.

2 , nor any of its divisions or companies, does not warrant the recommendations and information contained herein asproperunder all conditions and expressly disclaims any responsibility for damages arising from the use, application or reliance on the recommendations contained / SHOP Page5 DETAILS / Outlooker and Valley Truss Connections6 Truss FABRICATION / / Conditions & & & / of MaterialsTABLE OF CONTENTS1206 NOTESOVERVIEWThis Manual is intended for quick reference only. Drawings and illustrations shown are samples only and are not intended for detailingor construction. Please refer to the TrusSteel Standard Details for technical information on connection Design , product use and strength and stiffness in acold-formed steel is the most accepted, most specified cold-formed steel (CFS) Truss system on the market today.

3 Noother building component combines strength, stiffness, fireresistance, insect resistance and Design flexibility so unique, patented Truss chord shape and Double-ShearTMfasteners, combined with multiple types of webshapes, make TrusSteel CFS trusses, pound-for-pound, thestrongest and stiffest cold-formed steel trusses on themarket. Not surprisingly, these same characteristicscombine to create a light, economical steel buildingcomponent having exceptional load-span capabilities, withclear spans in excess of 80 by powerful Alpine steelVIEWTM Design andanalysis software, TrusSteel CFS trusses provide reliable,economical structural solutions for almost every roof or Most Trusted Name in CFS TrussesAlpine Engineered Products, Inc.

4 Was a drivingforce in the creation of the wood Truss industryover forty years ago. Since that beginning, theindustry has consistently recognized Alpine asengineering and innovation leaders. Now, as apart of the ITW Building Components Group, provides the same leadership in thefounding and development of the pre-engineeredCFS Truss TrusSteel Division has decades of combinedexpertise in the Truss and CFS building productsindustry. The TrusSteel product line combinesover forty years of Truss engineering andsoftwareknowledgewithcutting-edgeroll forming technology and the proven quality ofin-house Truss fabrication.

5 As a result, moreTrusSteel trusses are installed each year thanany other proprietary CFS Truss provides ongoing leadership to thetruss industry through hands-on participation inkey organizations such as the Cold-Formed SteelEngineers Institute (formerly LGSEA), theAmerican Iron and Steel Institute, the CFSC ouncil of the SBCA, the AISI Committee onFraming Standards (COFS), and the Center forCold-Formed Steel is actively involved in programs withthe International Code Council and TrusSteel Truss is designed using theindustry-leading Alpine steelVIEW is the most accurate Truss designsoftware in the industry for a number of reasons,including: True multi-node modeling, not the estimatednode modeling used by other CFS Truss designsoftware packages.

6 Multiple load case analysis applied to eachtruss, including gravity, wind, seismic andunbalanced conditions. Analysis methodologies derived from the mostextensive full-scale testing program in theindustry, utilizing the AISIS pecification for theDesign of Cold-Formed Steel TrusSteel Fabricators, operatingthe steelVIEW software in-house andsupported by TrusSteel engineeringresources, provide solutions for the mostcomplex Truss and Design flexibilityTrusSteel CFS trusses provide the same spancapabilities and Design flexibilities as woodtrusses. The pre-engineered system allows muchgreater Design flexibility than steel C trussframing.

7 As a result, you can Design in familiarroof lines - pitched or flat, with hips, gables,gambrels, monos, mansards, cantilevers,overhangs, scissors and floor trusses. Thisdesign flexibility makes TrusSteel trusses idealfor almost any building type: new construction,retrofit, commercial, institutional, military,educational, industrial and municipal to specify and designThere is a wealth of information available to helpyou specify and Design with TrusSteel. A guidespecification in CSI format, and standard detailsin DXF and DWG formats, can assure that yourspecs and construction documents are accurateand complete.

8 UL, ICC Legacy report (NER) andFlorida Product Approval are available to assistyou in making Design decisions and in workingwith code officials. Local TrusSteel fabricatorscan aid you in making informed decisions aboutproject designs and productsTrusSteel CFS trusses contribute to a safe builtenvironment. They do not emit moisture or fumesduring their life cycle. They are resistant to insectattack, and do not provide a medium for thegrowth of mold. And most of the steel used forCFS framing is recycled fire resistanceNoncombustible TrusSteel trusses provideintegral, recognized fire resistance that does notfade with time.

9 See the following pages for a listof TrusSteel s useful, cost-saving UL-listed roofand floor structural performanceWith over forty years of experience in the trussindustry, you can be assured that TrusSteelunderstands the structural performance oftrusses. The powerful steelVIEWTM Truss designsoftware analyzes each Truss individually usingthe latest industry standards, guided by the newANSI/AISI/COFS -Standard for Cold-Formed SteelFraming - Truss Design . Finally, each Truss designis reviewed and sealed by a TrusSteelProfessional trussesTrusSteel CFS trusses are built in a shopenvironment with experienced fabricationpersonnel.

10 TrusSteel endorses industry trussshop quality control standards as developed bythe Cold-Formed Steel systemSince TrusSteel CFS trusses are the stiffesttrusses in the industry, less permanent bracing istypically required in the Truss , combined with excellent performance at4 ft. on-center spacings or greater, can reducethe cost of the installed Truss system throughreduced labor costs, materials and projectduration. Property insurance premium discountsmay provide long-term availabilityTrusSteel supports the largest network ofindependent CFS Truss fabricators in theindustry.