Spray foam insulation

[frthompson]

Anyone apply spray foam insulation to the underside of your floor to insulate it? I've seen concerns expressed that spraying against metal frame members could hold moisture against the metal and cause rust. But what if you just sprayed the underside of the of the plywood? There are DIY spray foam kits available now. I guess an alternative to insulate the floor is to glue on pieces of foam insulation board?

[FRED SMAILES]

I have no experience with the idea but imo if you sealed the metal from moisture first the foam would be no different than paint applied to metal. Would the foam stay stuck would be a question

[Jon Vermilye]

This is an option with Escape trailers. The pros - warmer floors and better cooling in hot summers. Cons - Makes repairs under the trailer difficult.

I used Locktite PL Premium Max or better but harder to find Loctite PL Premium FAST GRAB Polyurethane Construction Adhesive to attach 2" blue board Styrofoam to the undersides of my trailer. Painted it black. Much neater, and makes repairs to plumbing, etc easier. The advantage of the Locktite products listed is they do not "eat" Styrofoam, and they cure without air, important when gluing foam to fiberglass.

[Bruce_L_Johnson]

One advantage of the spray foam is that it eliminates all light from the water tank, so no algae forms.

[Casita Greg]

I just use a replacable 2' X 6' "runner rug" down the aisle inside. (About $15 bucks at Walmart or Fred Meyer.) I can take it out to beat it, vacuum it in place, or throw it in the washer when I get home. Don't know about water tanks in Escapes, but Casita water tanks are inside the trailer, so light isn't an issue. (And, fwiw, I wished I'd never bought the larger water tank option. What a space waster! I never use it, I always hook up to city water.) Just sayin'.
Never had cold feet inside with the aisle runner rug.