Insulation system with variable position vapor retarder

Details Insulation system with variable position vapor retarder Insulation system with variable position vapor retarder

B - Operations, Transporting

32

B

B32B 19/06 (2006.01) E04B 1/92 (2006.01)

Patent

CA 2550234

A method for positioning a vapor retarder within an insulation system to reduce condensation within the insulation system is provided. The incremental change in temperature per R-value of insulation is calculated by determining the temperature differential between the exterior temperature and the interior temperature and dividing this temperature differential by the R-value of insulation. Various possible temperatures for the vapor retarder within the insulation may be determined using the incremental change in temperature. The R-values of the insulation layers on either side of the vapor retarder may be determined by a condensation potential analysis. Preferably, the vapor retarder is positioned within the insulation system at a location where its temperature remains above the interior dew point temperature in the summer and above the exterior dew point temperature in the winter. An insulation system including a variably positioned vapor retarder is also provided.

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