A modified polyethylene (PEVA) core with a non-woven polypropylene on both sides
Provides protection of the substrate from moisture penetration
This waterproof membrane is 5-mil thick and has a water vapor permeance of 0.051 perms, when tested according to ASTM E96, using Procedure E at 90% relative humidity
Made from the same lightweight, waterproof material as the waterproofing membrane and is for use over horizontal and vertical seams.
