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Cross Laminated Timber WoodWorks Efficient Use of Wood Framing in Retail Buildings Archie Landreman, CSI Technical Director – National Accounts “The Wood Products Council” is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Copyright Materials Credit(s) earned on completion of this program will be reported to AIA/CES for AIA mem bers. C er tifica tes o f C ompl e tion for b oth AIA members and non-AIA members are available upon request. This presentation is protected by US and International Copyright laws. Reproduction, This program is registered with AIA/CES for continuing professional dis tr ibu tion, disp lay an d use o f the presen ta tion education. As such, it does not include content that may be deemed without written permission of the speaker is or construed to be an approval or endorsement by the AIA of any prohibited. material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. © The Wood Products Council 2011 Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. Learning Objectives At the end of this program, participants will be able to: 1. KhihttlddtilblfitilKnow which structural wood products are available for use in retail buildings 2. Understand advantages of structural wood products used in retail buildings 3. Compare structural wood products 4. Refer to specific applications of structural wood products when used in retail buildingsg Why Are We Here? Who Are We? . Share Ideas . Audience Background? . Open Doors to Communication . Provoke Thought . My Background . Begin a Dialogue . Form a Relationship . National Accounts Initiative Goal of This Presentation Presentation Approach Provide you with factual, accurate . Inundate you with impressive facts and objective information and and figures? examples so that you would OR consider us ing s truc tura l woo d in . Prov ide you w ith hones t, o bjec tive future ppjrojects information? . Support? (Service) Structural Wood Products Why Wood . Engineered Wood Beams . Cost Effective . I-Joists . Time Saving . Wood Trusses . Readily Available . Dimensional Lumber . National Labor Pool . Wall Panels . Easy to Customize and Work With . Structural Insulated Panels - SIPS . Sustainable . Post Frame Construction . Cross Laminated Timber - CLT Sustainable Attributes Wood - A Model of Sustainability • Renewable & Bio based • Low Embodied Energy (Solar) • Absorbs CO2, Releases Oxygen .From 1953 to 1997 • Clean Production Process • Forest inventories grew 36% * • Thermally Superior • Biodegradable • Over 50 million wood-frame homes were built Source: ATHENA Sustainable Materials Institute www.athenasmi.ca * Source: U.S. Forest Service Forest Facts Certification . 1/3 o f t he USA i s forested or 750 m illion acres . Only 250 million acres are open to logging Wood is: . About 2 Billion trees planted annually . Annual timber growth exceeds harvest by 25% . When purchased certified, the only . Canada has over 1 billion acres of forest construction material available that . Canada has 90% of their original forest provides assurance of environmental . USA has 70% of their original forest responsibility regarding production . Annual timber harvests are below 2% of . Whyyq aren’t other materials required to standing Inventory be certified???? . 270 million acres of forest are set aside for wildlife refuges, parks and wilderness areas LVL-Laminated Veneer Lumber LSL-Laminated Strand Lumber PSL-Parallel Strand Lumber Glulam Wood II--JoistsJoistsT Innovative Engineered Wood Products 84’ Clear Span AG Trusses 82’ Clear Span Roof Truss Girder Truss Supporting Girder Truss Girder Truss Supporting Roof and Floor Pre-Fab Floor Truss Panels Installing Floor Truss Panel Section Four Story Hampton Inn 28’ Clear Span Floor Truss Four Story Hampton Inn 24” Deep Floor Trusses and Flush LVL Plated Floor Truss Spans Hilton Garden Inn Milwaukee Spans over 30’ are reasonable for commercial construction. Hilton Garden Inn Milwaukee Hilton Garden Inn Milwaukee Office Building Elgin Taco Bell 34’ Wood Truss Spans @ 32” o.c. 36” deep flat roof trusses. Environmentally Conscious Building Materials Glulams: . Roof Trusses & Purlins . Floor Beams . External Columns & Beams . Stair Treads Plywood: . Roof, Floor & Wall Sheathing . OSB: . Wall finish material w/ stain WHAT ARE SIPS? Structural Insulated Panels SIPs are composite, Combining the efficiency of high performance, panelization and accuracy of self-supporting, machine cut panels in creating 5 structural building building elements all at once: panels with an insulating core of rigid 1) Structural Assembly for both foam and structural gravity and lateral loads 2) Insulation facings or skins, most 3) Air Barrier and Vapor Retarder commonly of 7/16” 4) Wire chases included thick oriented strand 5) Flat, Nailable Surfaces for board (OSB). interior and exterior finishes 105 Panel Thickness R Values . There are five nominal panel thicknesses. The core dimensions match dimens iona l 2x ’s: . 3 ½”, 5 ½” 0 . 7 ¼”, 9 ¼”, 11 ¼” . R-Value reported at 75 F is an FTC requirement. As the temperature decreases the R-Value increases. SIPS = Strength SIPs and Commercial Applications Design Advantages January 1995-Kobe, Japan •Integrated system 7.2 maggqnitude earthquake •Close tolerances Damage over $100 billion •Complex CNC cutting Six SIP homes Suffered NO •Large Spans structural damage 1998-Clermon t, Georg ia This SIP house survived a tornado with suppgerficial damage while 27 conventional houses around it were destroyed. 109 40 110 Post Frame Building System Sheathing Purlins Truss WoodWood Columns Wall Girts Columns Alternative Post Foundations Cross-Laminated Timber .New generation of lightweight and ppyrefabricated systems .Consists of wood stripp(ps (planks) stacked crosswise on top of each other (glued or nailed) .Thicknesses of the panels vary from 50 to 600 mm Cross Laminated Timber (CLT) Benefits of CLT . Speed of Erection . Overall Performance . Seismic (no soft story) . Acoustic . Vibrations . Fire Photos provided by FPInnovations Benefits of CLT . Sustainable Benefits . Carbon footprint . Low embodied energy . Tight building envelope (high energy efficiency) . Little waste . Cost Competitive Advantages of CLT Panels Why CLT is Different than Glulam?! . Factory produced with high precision CNC machines . Quick on-site assembly (One storey/week or less per avg. size floor plan) - Min site Noise (equipment/personal) - Min site Waste (high level of Beam-like member prefabrication) Thick Orthotropic Plate - Ideal for dense urban in-fill projects - Health and safety benefits One of the most promising wood alternatives to concrete assemblies. Advantages of CLT Panels . X-lamination minimizes swelling and shrinkage in the board plane . Relatively high in-plane (seismic) & out-of-pp()lane (wind) streng th and stiffness properties . Has two-way action capability similar to a concrete slab (alternative) . Good fire resistance – heavy timber construction (inherent fire resistance) Questions? This concludes The American Institute of Architects Continuing Education Systems Course Archie Landreman [email protected] 262‐672‐4746 Wood Products Council 866.966.3448 [email protected] Although they restricted themselves to one drink at lunch time, Tom and Resources and Support Arch found they were not at their most productive in the afternoons. What Can WoodWorks Do For You? Archie Landreman 262-672-4746 [email protected].
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