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“Center-of-Cavity” refers to the R-value of pre-installed
fiberglass-batt or cellulose insulation. “Whole Surface” R-value measures the heat loss of an entire constructed wall system including insulation. *Fiberglass systems typically perform at only 65 percent of the stated center-of-cavity R-value, due to the thermal bridging that occurs at each stud and other 2x lumber. But Here’s the good news: *Foard Panels perform at 96% of their center of cavity R-value. That’s because there’s no thermal bridging with structural insulated panel construction. Therefore SIPs will ultimately out-perform stick and infill systems. Building inspectors know the difference and will allow “whole surface” R-values of SIPs to be used in determining code requirements. Take a look at the table below. The first yellow column shows the code-specified R-values that use center-of-cavity values. Next to it in yellow are the actual whole-surface R-values you get with fiberglass batt insulation and stick framing. In the blue columns are the whole-surface R-values of Foard Panel EPS and XPS panels in varying thicknesses. |
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| (download the above Energy Star info as a pdf) | ||||||||||||||||||||||||||||||
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| Tax Credit for Builders | ||||||||||||||||||||||||||||||
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SIP’s May Qualify Builders for Federal Tax Credits Contact Your Local Energy Rater Federal tax credits are being offered for builders who construct new energy efficient homes. On February 17, 2009,
President Obama signed a stimulus bill (The
American Recovery and Reinvestment Act of
2009) that made some significant changes to
the energy efficiency tax credits. Tax
credits that were previously effective for
2009, have been extended to 2010 as well.
View chart to see what is available. |
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| FOARD PANEL • P.O. Box 185, West Chesterfield, NH 03466 • 1-800-644-8885 • (fax) 603-256-6902 • info@foardpanel.com | ||||||||||||||||||||||||||||||