1.5.zip

: The overlay typically provides a permeance level of 12–16 perms , allowing the panels to "breathe" and dry out.

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

The primary benefit of the 1.5-inch ZIP-R system is the elimination of . In traditional framing, wood studs act as thermal bridges, conducting heat out of the building. The 1.5-inch ZIP-R provides continuous insulation that can cut wall heat loss by 20–30% compared to cavity-only insulation. Other advantages include: : The overlay typically provides a permeance level

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