Anthony Freda ARCH 152 Project 2 Material Specifications: Master specification number: SIPA120908-10 Manufacturers: EH Systems, Energy Panel Structures, Inc., Fischer SIPS, LLC, Foard Panel, Inc., IB Panels, PorterCorp, SureTight Insulated Panel Corporation, Timberline Panel Company, LLC Generic terms?: SIPs (Structural Insulated Panels) Material Application: Primary use: For load-bearing or non-load bearing wall and roof panels capable of resisting transverse, axial and in-plane shear loads. Innovations: The core material is nominal 1 pcf expanded polystyrene (EPS) foam. Physical properties: Finish: The facing consists of two single ply OSB, Exposure 1. Surface forms: The shape of SIPs can vary but must be designed by a registered design professional and must meet all design load requirements. Dimensions: SIPs are available in 4-5/8 inch through 12-3/8 inch overall thicknesses. The maximum panel size is 8 ft. wide and up to 24 ft. in length. The core thickness spans from 3.75 inches to 11.375 inches. Weight: SIP dead load weight ranges from 3.2 psf at 4-½” thick to 4.0 psf at 12-¼” thick Acoustic property: sound insulation of more than 40 dB Structural properties: SIPs are used for framing and insulating for a building which includes non-load bearing walls as well as roof systems. Installation: The SIPs are pre-made so they need to be transported to a job site where machinery is needed to unload the panels. Machinery is also used to assist in raising walls. A glue adhesive and nails are used on every panel at all connections to ensure an air tight and secure structure. Joints are splined together with additional OSB within the core that interconnects to each panel. Any openings can be designed and cut in the factory to reduce or eliminate on sight cutting. If a cut needs to be made a chainsaw is required but most likely the panel will have to be referred back to the factory to check for design failures. Cost analysis: About $6 sqf depending on company and size of panels. Material Background: How it is made: two layers of 7/16" OSB with an EPS (Expanded Polystyrene) foam core, fused together under 720 lbs/sqft of pressure. Cores can also be made with polyurethane and polyisocyanurate and extruded polystyrene. Origin: SIPs where first developed as far back as the 1930s at the Forest Products Laboratory (FPL) in Madison, Wisconsin. The used OSB outer skins come from replenishable, quick-growing softwood trees, and- SIP components are recyclable. The architect Frank Lloyd Wright used these panels for affordable housing in the 1930s and 40s. Alden B. Dow, brother of the founder of Dow Chemical Company, created the

first foam core in 1952. By 1959 the Koppers Company converted an auto production plant in Detroit into a SIP production facility and in the 1960s began the first manufacturing effort of structural insulated panels, resulting in the production of SIPs as we know them today. Process: Having correct demensions of the panel needed for construction is a start then the factory does the work. OSB sandwhiches together the chosen type of foam (Expanded Polystyrene, polyurethane and polyisocyanurate and extruded polystyrene). Byproducts: EPS, the type of insulating foam core used inside of SIPs, is composed of 98% air and requires a minimal amount of petroleum byproduct to produce. Scrap EPS, created in the manufacturing process, is easily recycled into new EPS products. 85-90 percent of a log can be used to make high quality OSB and the remainder is easily converted into energy, pulp chips, or bark dust. Historical significance?: SIPs have been around since the 1930s and major technological advancements have increased the efficiency of the product. Environmental Impact: Life expectancy: It is estimated that an SIP building which is properly maintained has a life expectancy of 80 to 100 years. Maintenance: SIP panels must be kept reasonably dry during the shipping and construction phases, if moisture causes deterioration of the skins, then there is a structural issue that must be repaired. Repairs can require replacement of a much larger area than the just the deteriorated portion. Recycling/ Biodegradable: None of the current petrochemical-based foams fabricated from polystyrene, polyurethane, polyethylene, polypropylene, poly(vinyl chloride) and poly(ethylene terephthalate) are biodegradable. For recycling, refer back to the “byproducts” section.

Standard “real” SIP

SIP labeled

Commercial Development

Commercial Development

Other materials used with SIPs

Crane operation and roof panels Sources http://www.r-control.com/downloads/brochure/R-Control%20SIP%20Load%20Design%20Chart.pdf http://www.sips.org/downloads/sipa-nta-master-code-report.pdf http://www.sips.org/downloads/standard-evaluation-plan-for-sips.pdf http://www.sips.org/about/what-are-sips http://www.sun-spaces.com/green-built-room-additions/sips-history.aspx http://www.fischersips.com/about/benefits http://www.greenbuildingadvisor.com/green-basics/structural-insulated-panels http://www.sheltersystemsnorth.com/facts.htm http://www.stanford.edu/group/peec/cgi-bin/docs/buildings/research/Energy-Efficient%20Biodegradable%20Foams%20for%20Structural%20Insulated%20Panel.pdf