level ii: section 01 introduction - sbca truss knowledge ...1600 roof truss manufacturers: 60% also...

Level II: Section 01 – Version 2.00Copyright © 2003-2006 WTCA 1

Section 01

Level II: Section 01 Introduction

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Section DownloadsSection Downloads

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Handouts & Slides can be printedVersion 2.0

Course binders are available for purchaseNot required

Download & PrintTTT II Sec 01 Slides

Section DownloadsSection Downloads

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Metal Plate Connected Wood Truss IndustryEnvironmental Impact of WoodEnvironmental Impact of SteelMetal Plate Connected Wood Truss AssociationsAdvantages and Applications of Wood TrussesFraming the American Dream® IFraming the American Dream® II

OutlineOutline

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Force for changeIndustry growthGrowing marketsNew technologiesBenefits for entire construction chainIndustry future

Industry StatusIndustry Status

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Force for changeForce for changeFour decades of growthChanged building construction


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Industry GrowthIndustry Growth

1600 Roof Truss Manufacturers:

60% also make floor trusses

30% also make wall panels

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Growing MarketsGrowing MarketsRoof truss

1992 - $4.4 billion1998 - $6.8 billion2004 - $13 billion

Floor truss1992 - $762.5 million1998 - $1 billion2004 - $2.5 billion

Wall panel 1992 - $140 million1998 - $420 million2004 - $2 billion

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Market PenetrationMarket PenetrationRoof trusses used:

66.9% one- and two-family70% multi-family

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Market PenetrationMarket PenetrationFloor trusses used:

12.4% one- and two-family25% multi-family

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Technology in DesignTechnology in DesignComputer versus slide rule

PlatesLumberSpanLoads

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Technology in ManufacturingTechnology in ManufacturingIn Manufacturing:

Component sawsLayout tablesTemplate creation


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BenefitsBenefitsArchitect/Building DesignerBuilder/ContractorBuilding Owner

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Architect/DesignerArchitect/DesignerAttractive and functional design:

ExteriorInterior

Design solutionsCost savings

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Builder/ContractorBuilder/Contractor

Components offer:

Higher quality Less timeLess cost

Less time on the job site.

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Building OwnerBuilding OwnerScientifically designedQuality in fabricationIncreased reliabilityLasting visual appealGreater value appreciation

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Industry futureIndustry future

Revolutionary pace

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LumberLumber’’s Futures FutureLumber resource becomes more valuableUse of smaller materials:

2x2, 2x3, 2x5 truss stockMore glued composites

More highly engineered productsDevelopment of composite reinforced products

Fiber Reinforced Products


Quiz 1Quiz 1

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Harvest RatesHarvest Rates

Source: An Analysis of the Timber Situation in the United States, 1952 - 2030, Forest Resources of the United States, U.S. Department of Agriculture, Forestry Services, 1992

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National ForestsNational Forests

Source: Powell, Douglas S., Faulkner, Joanna L., Darr, David R., Zhu, Zhillang, and MacCleery, Douglas, Forest Resources of the United States, General Technical Report RM-234, U.S. Department of Agriculture, Forestry Services

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Forest PlantingForest Planting

Source: Moulton, Robert J., Tree Planting in the United States by Owner, 1950-1996, U.S. Department of Agriculture, Forestry Services.)

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Forest RenewalForest RenewalThe forest industry: Depends on long-term renewablityHas a stake in ensuring its perpetuationIs a significant employerThe only renewable structural building products

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RecyclingRecycling

Wood products are easily and economically recycledRecycling rates are increasingAll building products begin with the extraction of a natural resourceOnly wood comes from a renewable source


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Environmentally friendlyEnvironmentally friendly

Wood is the best insulator of all structural materials

Require less energy to heat and coolEfficient use of the product

95% of each tree harvested is used productivelyRemaining 5% biodegrades naturally

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Environment & SteelEnvironment & Steel

Wood truss industry uses more than 500 million pounds of steel per year.Steel is easily recycled

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Steel ManufacturersSteel Manufacturers

Invested over $7 billion to control pollution and treat solid wasteDecreased energy consumption in productionReduced air and water pollutants by 90%Recycle hazardous wastes and waterStronger products developedRecycling rate of 66%

Quiz 2Quiz 2

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Trade AssociationsTrade Associations

4.1 WTCA – Representing the Structural Building Components Industry

www.sbcindustry.com

4.2 Truss Plate Institute (TPI)www.tpinst.org

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Established as the Component Manufacturers Council in 1961 with TPIOrganized in 1983 as WTCARepresents Structural Wood Component ManufacturersServes to Promote the Common Interests of Component Manufacturers to Ensure Growth, Continuity and Professionalism in our IndustryDevelops Educational Materials and Programs

WTCAWTCA


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WTCA WTCA –– What We AreWhat We Are

WTCA is the information conduit for our membership staying abreast of leading-edge issues and disseminating this information through educational seminars and our industry publications.

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Truss Plate Institute (TPI)Truss Plate Institute (TPI)

Organized in 1961Represents Truss Plate ManufacturersPurpose - Maintain Industry on a Sound Engineering BasisHas Active Technical Advisory CommitteeEstablishes and Publishes Standards for Design and Construction using TrussesPublishes Other Technical Information to aid in using Trusses

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ANSI/TPI 1ANSI/TPI 1

National Design Standard for Metal Plate Connected Wood Truss ConstructionANSI Consensus ProcessVersions:

TPI 1-1995TPI 1-2002

Quiz 3Quiz 3

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AdvantagesApplications

Why Use Trusses?Why Use Trusses?

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Longer spans

AdvantagesAdvantages


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High quality


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Pre-engineered


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Optimized use of material


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Faster installation


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Design flexibility


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More economical



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ApplicationsApplicationsResidential roofs and floors

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Agricultural structures

ApplicationsApplications

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Commercial structures


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Concrete forming


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Remodeling of existing structures


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Modular or industrialized housing



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Faster erectionImproved qualityWeather-protected materialsSmaller clean-up costs

Framing the American DreamFraming the American Dream®® II

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Faster erectionImproved qualityWeather-protected materialsSmaller clean-up costsLower exposure to vandalismLower job site laborLower fire riskHigher value construction

Framing the American DreamFraming the American Dream®®II

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Built side-by-sideOne conventional framedOne component framed

NAHB Show 1996NAHB Show 1996

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2631 sq. ft. of living space plus 384 sq. ft. of porches

The PlanThe Plan

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Great RoomGreat Room

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AtticAttic


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Waste from each site was put into separate dumpstersComponent site waste:

sheathing and bracing materialcomponent manufacturing waste included in the cost of the components

Conventional site waste:lumber cut-offs, sheathing and bracing material

Job Site WasteJob Site Waste

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WasteWaste

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Foundation & FloorFoundation & Floor

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Conventional FloorConventional Floor

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Component FloorComponent Floor

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Floor ComparisonFloor Comparison

661111


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Wall ComparisonWall Comparison

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Wall PanelsWall Panels

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Framing HeadersFraming Headers

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Attic ComparisonAttic Comparison

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Attic SupportsAttic Supports

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Attic FramedAttic Framed


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Attic Frame DormerAttic Frame Dormer

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Attic FramesAttic Frames

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Flat TopFlat Top

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PiggybackPiggyback

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Attic Frame DeckingAttic Frame Decking

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Gable SheathingGable Sheathing


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Gable SettingGable Setting

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Great Room ComparisonGreat Room Comparison

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Lifting GableLifting Gable

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Setting GableSetting Gable

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Gable SetGable Set

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Scissors TrussScissors Truss


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Vault with TrussesVault with Trusses

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Great RoomGreat Room

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Conventional FramingConventional Framing

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Vaulted RoofVaulted Roof

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Rafter Roof InteriorRafter Roof Interior

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Conventional ValleysConventional Valleys


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KickersKickers

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Component ValleysComponent Valleys

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In the HomestretchIn the Homestretch

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ComponentComponent

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Conventional Conventional

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Final ComparisonFinal Comparison


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Stick Frame Savings

Total Hours to Construct 401 hrs. 148 hrs.

Total Hour Cost @ $20/hr. for Average FramingCrew Labor (Components used Crane @ $500)

$8,020.00 $3,460.00

Total Board Footage Lumber (Sheathing PanelsSame for Both)

20,400 bd. ft 15,100 bd. ft

Total Cost of Lumber @ $450/1000 bd. ft.(average), Sheathing @ $3748.00 (same for both)and Components at Truss Manufacturer’s SellingPrice

$12,928.00 $14,457.00

Total Lumber and Panel Scrap Generated 17 yards 4 yards

Total Scrap Cost @ $15/yd dumpster cost and 1/2hour/yd to pick up.

$425.00 $100.00

Total Cost for This Example Only $21,373.00 $18, 017.00

253 hrs.

$4,560

5,300 bd. ft

($1,529)

13 yards

$325

$3, 356

Component

16 %16 %

Final StatisticsFinal Statistics

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BrochuresBrochures

VideoVideo Quiz 4Quiz 4

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WTCANAHB – BSCCWCCWTAIndividual modules

Roof trussFloor truss

Framing the American DreamFraming the American Dream®® IIII

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Project PictureProject Picture


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Project Site PlanProject Site Plan

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Project ParticipantsProject ParticipantsSouthern ComponentsCascade ManufacturingGem State TrussA-1 Roof TrussesA. C. Houston Truss CompanyTrussway Ltd.Trusco, Inc.Brunsell Lumber and MillworkAllwood Building Components

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Module 1Module 1

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Wall Panel Wall Panel

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Completed Arch WallCompleted Arch Wall

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Arch Truss SetupArch Truss Setup


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Arch Truss SwingArch Truss Swing

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Arch WallsArch Walls

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Module 2Module 2

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Roof Lifted into PlaceRoof Lifted into Place

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Arch & Cathedral VaultsArch & Cathedral Vaults

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Module 3Module 3


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Arch Vault SectionArch Vault Section

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Arched Girder Framing Arched Girder Framing

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Section SetSection Set

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Arched CeilingArched Ceiling

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Module 4Module 4

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Hip Girder FramingHip Girder Framing


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Braced Wall PanelsBraced Wall Panels

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Vault into VaultVault into Vault

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Module 5Module 5

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Vaulted TrussesVaulted Trusses

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GirderGirder--toto--GirderGirder

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Module 6Module 6


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Module 6 Cross SectionModule 6 Cross Section

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Section Lifted into PlaceSection Lifted into Place

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Half Attic StorageHalf Attic Storage

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Space for Service LinesSpace for Service Lines

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Module 7Module 7

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Walls, Beams & ColumnsWalls, Beams & Columns


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Attic FramesAttic Frames

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Exposed TrussesExposed Trusses

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Module 8Module 8

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Architectural FeaturesArchitectural Features

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StepStep--Up CeilingUp Ceiling

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Module 9Module 9


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Vaulted InteriorVaulted Interior

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Module 10Module 10

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Roof GirdersRoof Girders

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SixSix--Sided RoofSided Roof

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Compression RingCompression Ring

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Floor Truss ExamplesFloor Truss Examples

Several different types of floor trusses were also displayed in the modules:

Conventional floor trussesOpenJoist 2000Space Joist TE


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Conventional Floor TrussConventional Floor Truss

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Open Joist 2000Open Joist 2000™™

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Space Joist TESpace Joist TE™™

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Component construction uses both time and materials more efficiently than conventional framing while increasing quality. Imagination is the only limit to component design and innovation.

SummarySummary

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Maximize ProfitsMaximize ProfitsProject PlanningKnowledgeable FramersKnowledgeable Plumbers & HVACPartnering with a Truss Manufacturer

Quiz 5Quiz 5


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level ii: section 01 introduction - sbca truss knowledge ...1600 roof truss manufacturers: 60% also...

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