Basement insulation levels continue to increase as wall R-value requirements become more stringent. The ROCKWOOL basement insulation system combines ROCKWOOL COMFORTBOARD™ and ROCKWOOL COMFORTBATT® insulation products to meet the demands of more stringent energy codes. Installing continous stone wool insulation adjacent to the foundation wall reduces thermal bridging in the assembly by separating the wood framing from the cold foundation wall. COMFORTBATT® insulation will not sag or shrink over time, which helps ensure consistent thermal performance of the assembly over time.

If any condensation or leakage occurs at the interior face of the foundation wall, the COMFORTBOARD™ insulation will keep moisture away from the stud framing. Moisture that accumulates can dry to the interior as stone wool is highly vapor permeable. Furthermore, as stone wool is inorganic, the insulation will not support or fungal growth when wetted. This greatly improves the durability of the basement wall assembly.