Slide floor replacement

[Dkierspe]

2018 Bighorn 3500SE. Replacing the bedroom slide floor due to water damage. What is the white membrane bonded/glued to the bottom of the plywood and where do I buy it? Local RV dealers are clueless.

 

[2019_V22]

Here is your daily rabbit hole.

https://www.forestriverforums.com/t...-the-slide-supposed-to-be-water-tight.313914/

 

[MirageFlare]

It’s likely a moisture barrier. Try checking online RV suppliers like eTrailer or RV Parts Country for the material.