Perm-A-Barrier VP
- Perm-A-Barrier VP from Grace Construction Products is a vapor-permeable air barrier that protects above-grade assemblies against the damaging effects of air and water ingress.
- Fluid-applied acrylic air barrier membrane
- Once cured, allows for transfusion of water vapor but is impermeable to liquid water
- Suitable for new and remedial commercial and residential construction
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