1.5.zip 〈EXCLUSIVE〉

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

: A 1-inch thick layer of polyisocyanurate (polyiso) foam bonded to the back of the OSB. 1.5.zip

: When properly taped, ZIP walls can achieve air change rates of : It combines multiple steps (sheathing, WRB, and

, significantly lower than standard OSB and housewrap combinations ( 3. Advantages in Construction : It combines multiple steps (sheathing