14′ x 70′ Mobile Flex Black Bottom Board

Repairs holes, cuts and tears resulting from plumbing repairs, weak seams and damage by animals. 14′ Width x 70′ Length Non-Adhesive – A special bottom closure woven from black tapes of high density polyethylene and extrusion coated with a continuous layer of black low density polyethylene. The material is uniform in quality with no weak spots. Penetrations or cuts will not spread and can be easily patched. Mobile Flex is impervious to water, its strength can not be adversely affected by water. Because of its black polyethylene coating, Mobile Flex Qualifies as a vapor barrier. UL Classified as to flammability, tested at zero flame spread and zero smoke developed. Radco approval #1028.