WhiteCap Insul-Liner is an ideal solution for heat, cold, and moisture problems in crawl spaces or basements. Composed of insulating layers of aluminum foil, polyethylene backing, and closed-cell polyethylene foam, WhiteCap Insul-Liner is an all-in-one solution.
- Provides an estimated R-value of 2 to 4 when applied to masonry walls.
- WhiteCap Insul-Liner''s R-value is unaffected by humidity and water because it is also a water and vapor barrier.