Discussion Starter · #1 ·
So my ceiling and flat wall areas are insulated with rigid polyiso foam, and I'm about to ask a local auto/RV upholsterer to apply vinyl (similar to auto seats) to cover the curved sections of exposed steel eg the 5 inch wide interior ribs. If he simply glues the stretchy vinyl on directly, those surfaces will continue to be cold spots, but the stretchy foam underlayer shops typically use eg in an auto headliner is open cell and essentially a sponge. My heated van will get used in snowy winter climates, so I'd like to do this right. Suggestions on a thinnish conformable underlayer to go under the vinyl?