Air-Tight 40 is a self-adhering sheet membrane for use as a water resistive, air and vapour barrier in full-wall applications with concrete, masonry, gypsum or wood construction substrates.
- 40 mil membrane
- Composed of a highly adhesive polymer modified asphalt integrally bonded to a high density, cross laminated, polyethylene film.
- Provides a strong and flexible resistance to air leakage and vapour diffusion.
- All surfaces to receive the Air-Tight 40 membrane must be primed with Primer LT.
- HB Sealant should be used at every termination of the membrane.