SIPs - Structural Insulated Panels 2008 Page Structural...

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Structural Insulated Panels 2008 Page 1 Structural Insulated Panels SIP is an acronym for Structural Insulated Panel. Bonding high performance rigid plastic foam insulation (e.g., polystyrene or polyurethane) to oriented strand-board (OSB) produces these engineered wood building components. The result is a building product that is predictable, resource efficient, and cost effective. SIPs are used as floors, walls, and roofs in all types of buildings across North America and shipped around the world for use in a wide variety of buildings. Construction The foundation or slab for a SIP building must be placed carefully to insure that it is square and level. A pressure-treated sill plate is attached to the edge of the slab with anchor bolts and the SIP is placed on top of the plate so that the inner and outer skins straddle the sill plate. A sill-seal strip should be placed under the sill plate to insure an air-tight seal with the concrete. A bead of foam sealant should then be placed on the top of the sill plate before the SIP is put into position to seal any possible air leaks. The SIP panel is attached to the sill plate by nailing through both the inside and the outside OSB skin into the sill plate as shown below.
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Structural Insulated Panels 2008 Page 2 [It should be noted that a pressure-treated 2x4 frequently swells and exceeds the 3.5” finished width of a standard 2x4 and will not fit between the skins of the panel. The plate member should be measured before placement and cut to the 3.5” width if necessary.] Panels are joined together end-to-end using either of two spline connection schemes. One approach, as shown below, involves inserting a 3-inch wide strip of plywood or OSB
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SIPs - Structural Insulated Panels 2008 Page Structural...

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