Spray Foam Floor Insulation

Laying a sub-floor in an RV consists of many individual steps. After removing the tie-downs, insulating the wheel wells, creating plywood templates, cutting and gluing the strips of Poly-Iso to the floor, I’m now completing the insulation by filling the voids with a spray foam application.

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Although it is a closed-cell, waterproof foam, after cutting off the excess, what remains is susceptible to moisture, but still adds insulation and some structural cohesion to the floor.

As always, I have detailed every step on the Project’s Page, and added lots of pictures and a video.

Mod: Insulated Floor – Spray Foam Application

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Mod: Insulated Floor

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