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How Do You Insulate A Timber Frame Home?

Asked by Travis on October 26, 2017

With these open truss roof systems.  Where would the insulation windup?  What range of R-values are attainable?

Answered by Caitlin

Dear Travis,


There are several ways to insulate the frame. Normally the insulation is either built-up above 2x ceiling/roof decking  that is installed on top of the trusses, or SIPs (structural insulated panels) are installed on top of the timbers.The range of insulation is dependent on the thickness of the SIPs or of the built up insulation. Since the insulation goes on top, the sky is literally the limit to the R-Value attainable.

Here are some examples of SIPs by Foard Panel:

Foard Panel’s Insulation.

Foard Panel’s Insulated Header


Best regards,



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