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R-Values

According to the factory

The type of insulation you choose can result in thousands of dollars saved in utility bills over the life of your home. Insulation is rated by R-Value, which measures a material’s thermal resistance. Insulating materials with a higher R-Value correspond with increasingly better performance. However, studies have shown that determined R-Values have little correlation with how an insulating material actually performs in a non-SIP home. When taking into account factors such as cavity voids, wiring without compression, and paper facer stapled to studs, the actual R-Value decreases significantly.SIPS homes avoid these familiar problems by distributing insulation uniformly among the entirety of the panels. Without these negative effects, actual R-Value of insulation within a SIPS panel can actually exceed its determined R-Value.

R-Value Comparison to fiberglass

Panel Thickness Actual R-Value Performance Value
4 ½” R-17 R-25
6 ½” R-25 R-38
8 ¼” R-33 R-50
10 ¼” R-41 R-62
12¼” R-48 R-72





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