What is the insulation performance advantage to building with PorterSIPs?
With PorterSIPs, insulation is a fore-thought. The EPS insulating core is integral with the product and the combination of the EPS’s high R-value, reduced thermal bridging due to less framing, and much reduce air leakage all contribute to superior energy performance. While R-values are only part of the story, SIPs have very good R-values. As an example, according to Oak Ridge National Lab, a part of the US Department of Energy, the whole wall R-value of a 6-1/2″ SIP is 21.6 compared to 13.7 for a conventional wall built using 2x6s 24″ O.C. and R-19 fiberglass batts. PorterSIPs outperform conventional construction every time. Read more about our R-values.
