WHAT IS THE R-VALUE OF SIPs?

The measure of a materials insulation thermal resistance is rated by R-value. Material with a higher R-value means a more effective thermal barrier between the outside temperature of a building and the conditioned space inside the envelope.

INGREEN SIPs provide superior insulation values from both a r-value perspective and the ability to assemble a tighter building envelope

R-values for SIPs depend on the thickness of the SIP and the type of core material that is used.

Static R-Values, like those included in the chart, rate the effectiveness of insulating material. However, they do not accurately describe how products perform in a real world setting. When fiberglass or other types of insulation are installed, they are installed around structural members made of wood or metal that have very poor insulating value. Field-installed insulation materials are also prone to installation imperfections.

Whole wall R-Value tests showed the following R-Values for SIP versus stick-framed buildings:

WHOLE WALL R-VALUE 

(Energy efficiency)

Comparison of thermal resistance of 4 1/2" SIP wall and conventional 4" stud wall