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Graphic depiction of thermal bridging through a typical building envelope. Red indicates most heat loss, purple indicates no heat loss. Yellow areas show the greatest heat loss through un-insulated steel studs.

Modern buildings are designed, not to prevent moisture from entering, but rather to accommodate moisture once it has entered the cavity wall. Given the fact that a building's cavity wall is designed to accommodate moisture, and that moisture contributes to the loss of thermal resistance (R-value), of the cavity wall insulation, IT IS CRITICAL that R-value retention in a moist environment be the most important factor to consider when choosing cavity wall insulation. Installed on the exterior of block backed cavity walls, rigid foam insulation from Dow helps moderate the cavity temperature, reducing the potential for condensation. Sized to fit snugly between wall ties, rigid foam insulation saves time and money on the job site.

There is a Dow insulation solution that is right every Exterior Cavity Wall Block-Backed application.