Lumintrail Mobile Flex Bottom Board 48″ x 14ft

The Lumintrail Mobile Flex Bottom Board is engineered for mobile homes, RVs, trailers, and campers, providing a durable, water‑impervious solution that also serves as an effective vapor barrier. Its black, high‑density polyethylene weave is continuously coated with low‑density polyethylene, ensuring uniform quality and resistance to weak spots. Penetrations or cuts can be easily sealed with Flex Mend tape, keeping the barrier intact.

Extensive testing confirms its resilience: after seven years of continuous exposure to Arizona’s harsh elements, the material retained 70% of its original strength. In addition, it meets UL Standard Test Method for Surface Burning Characteristics of Building Materials (UL 723), achieving zero flame spread and zero smoke development. The product comes with a convenient keychain light for added safety and accessibility.