Editing Structural insulated panel (section)

== Benefits and drawbacks ==
The use of SIPs brings many benefits and some drawbacks compared to a conventional framed building.

The costs of SIPs are higher than the materials for a comparable framed building in the United States; however, this may not be true elsewhere. A well-built home using SIPs will have a tighter building envelope and the walls will have higher insulating properties, which leads to fewer drafts and a decrease in operating costs. Also, due to the standardized and all-in-one nature of SIPs, construction time can be less than for a frame home, as well as requiring fewer tradespeople. The panels can be used as floor, wall, and roof, with the use of the panels as floors being of particular benefit when used above an uninsulated space below. As a result, the total life-cycle cost of a SIP-constructed building will, in general, be lower than for a conventional framed one—by as much as 40%. Whether the total construction cost (materials and labor) is lower than for conventional framing appears to depend on the circumstances, including local labor conditions and the degree to which the building design is optimized for one or the other technology.

An OSB skinned system structurally outperforms conventional stick framed construction in some cases; primarily in axial load strength.  SIPs maintain similar versatility to stick framed houses when incorporating custom designs.  Also, since SIPs work as framing, insulation, and exterior sheathing, and can come precut from the factory for the specific job, the exterior building envelope can be built quite quickly. SIPs panels also tend to be lightweight and compact which aids this offsite construction. The environmental performance of SIPs, moreover, is very good due to their exceptional [[thermal insulation]]. They also offer a resistance to damp and cold problems like compression shrinkage and cold bridging that cannot be matched by timber and more traditional building materials.<ref>{{Cite web|url=http://www.green-modular.com/blog/structural-insulated-panels/|title=Structural Insulated Panels {{!}} Green Modular|website=Green Modular|language=en-US|access-date=2016-04-19}}</ref>

When tested under laboratory conditions, the SIP, included in a wall, foundation, floor, or roof system, is installed in a steady-state (no air infiltration) environment; systems incorporating fiberglass insulation are not installed in steady-state environments as they require ventilation to remove moisture.

With the exception of structural metals, such as steel, all structural materials [[Creep (deformation)|creep]] over time. In the case of SIPs, the creep potential of OSB faced SIPs with EPS or polyurethane foam cores has been studied and creep design recommendations exist.<ref>Taylor, S.B, Manbeck, H.B, Janowiak, J.J, Hiltunum, D.R. "Modeling Structural Insulated Panel (SIP) Flexural Creep Deflection." J. Structural Engineering, Vol. 123, No. 12, December, 1997.</ref><ref name="Using NTA Listing Report Data 2009">3NTA IM 14 TIP 01, Engineered Design Guide Using NTA Listing Report Data. NTA, Inc. Nappanee, IN. 3/19/2009, 12 pg.</ref>  The long-term effects of using unconventional facing and core materials require material specific testing to quantify creep design values.