Tyvek® DrainVent™ Rainscreen is a three-dimensional honeycomb-textured drainage mat that provides advanced protection against moisture damage in exterior wall systems. Ideal for stucco and stone exteriors, Tyvek® DrainVent™ Rainscreen is suitable for use with a variety of other materials, including brick, wood siding, fiber cement siding, metal panel systems, cedar shake and shingles. 200 sq. ft. coverage per roll (4’ x 50’/1.2m x 15.2m roll) >100 perms based on ASTM E96 (method B) 90-day UV rating Mold and mildew resistance Class “A” fire rating per ASTM E84