Rainbarrier® Continuous Insulation

Thermafiber® RainBarrier® continuous insulation products are designed for exceptional performance in rainscreen and exterior cavity wall construction applications. With a full portfolio of Owens Corning continuous insulation products and a wide range of compressive strengths, Thermafiber® RainBarrier® mineral wool insulation has a solution available for many façade types while being compatible with various mechanical attachment methods and air barrier systems. All Thermafiber® RainBarrier® products are non-combustible, fire-resistant, vapor permeable, and are easy to fabricate and install.

Continuous insulation is insulation that is continuous across all structural members without thermal bridges other than fasteners and service openings. It is installed on the interior, exterior, or is integral to any opaque surface of the building. Benefits of continuous insulation include:

• Reduces thermal bridging and increases overall R-value. Thermal bridging is a type of heat loss which occurs when heat flows through the building envelope via a continuous path, such as through wood or, more commonly, highly conductive steel framing members. Thermal bridging affects whole wall R-value.
• Simplifies installation of continuous air and water barriers. By creating continuous insulation, the air and water barrier can also be installed in the exterior wall cavity with minimal interruption.
• Reduces moisture concerns. Continuous insulation reduces the possibility of condensation within the wall when warm, moist air is prevented from reaching a dew point temperature.