: A layer of high-quality OSB that provides shear strength.
, significantly lower than standard OSB and housewrap combinations ( 3. Advantages in Construction 1.5.zip
: 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 . : A layer of high-quality OSB that provides shear strength
: The overlay typically provides a permeance level of 12–16 perms , allowing the panels to "breathe" and dry out. 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
