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Structural Insulated Panel (SIPs) Energy Efficiency

Whole Wall R-Value Study


A 4-1/2" thick R-Control® Structural Insulated Panel wall was tested against 2x4 and 2x6 traditionally framed walls. The R-Control® Structural Insulated Panel significantly outperformed 2x4 stud walls and also outperformed thicker 2x6 stud walls. Results are conclusive: 4-1/2" R-Control® Structural Insulated Panels have better whole-wall R-Value than 2x6 batt-insulated construction.

The test program was sponsored by the Structural Insulated Panel Association (SIPA). Testing demonstrated that Structural Insulated Panel connections did not create cold spots. This contrasted to stick-built walls which had cold spots over each lumber stud in the testing. Dramatically reducing cold spot s provides a more comfortable interior environment, an advantage in building with R-Control® Structural Insulated Panels.

SIPs R-Value Study Results


structural insulated Panels SIPs energy efficiency R-Value

Whole Room Air Infiltration


Structural insulated panels energy efficiency R-Value

Whole Room Energy Use




SIPs R-Values & Thicknesses


Thickness


 4-1/2"
6-1/2"
8-1/4"
10-1/4"
12-1/4"		R-Value
at 75° F

 14.9
22.6
29.3
37.0
44.7		 R-Value
at 40° F

 16.0
24.3
31.6
39.9
48.3

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