1.5.zip -

: It combines multiple steps (sheathing, WRB, and exterior insulation) into a single installation, which can be faster and cheaper than applying separate layers.

: A layer of high-quality OSB that provides shear strength. 1.5.zip

: In Climate Zone 5, the R-6.6 provided by the 1.5-inch panel is sufficient to keep the sheathing boundary above the dew point, preventing internal condensation when using fiber insulation in the stud cavity. 4. Application and Code Compliance : It combines multiple steps (sheathing, WRB, and

: A factory-applied water-resistive and air barrier on the exterior face. Key Performance Metrics: R-Value : Provides a thermal resistance of R-6.6 . and thermal insulation.

The 1.5-inch variant is often the minimum thickness required in the ZIP-R product line to satisfy energy codes in colder climates. However, designers must account for specific regional requirements: Roxul Comfortboard - disadvantages? - GreenBuildingAdvisor

The is a structural wood panel with integrated water-resistive barrier (WRB), air barrier, and thermal insulation. The 1.5-inch variant is a specific configuration designed to provide a continuous thermal bridge break while maintaining structural integrity in residential and commercial framing. 2. Composition and Specifications

: A 1-inch thick layer of polyisocyanurate (polyiso) foam bonded to the back of the OSB.