Won't absorb moisture, which can freeze and block all ventilation.

Universal fit for many roofing sheet profiles.

Pre-applied adhesive strips for easy one person installation.

40 year limited warranty.

ASTM E 84 tested/rated extremely durable polyester flame-resistant, clog-resistant, tear-resistant, economical, long lasting.

Flex-O-Vent has been tested and passed several small scale fire tests including ASTM D 2843 Smoke Density, ASTM D 1929 Self Ignition Temperature, and ASTM D 635 Rate of Burn.

Available in 1 1/2" x 3" x 10'.

Available in cartons of either 100' or 20'.