expanding foam insulation

[DinubaDave]

Has anyone used expanding foam insulation to replace the factory insulation? I've removed the aluminum and insulation under my Caravel. I found a host of problems, from wiring that had been chewed through to a poorly constructed frame. I've fixed everything but I'm thinking expanding foam would be an excellent deterrent to keep rodants out. I was also thinking it could firm up the walls making the entire trailer less prone to dents, etc.

I had heard this type of foam could crubble, but I've not been able to find any confirmation to that.

Thanks,
Dave

[overlander63]

Originally Posted by DinubaDave

Has anyone used expanding foam insulation to replace the factory insulation? I had heard this type of foam could crubble, but I've not been able to find any confirmation to that.Thanks,Dave

Welcome to the Forums!
Yes, it has been tried, yes it crumbles. Because the inside and outside of the coach move slightly against each other, it would turn to powder in short order. The good old-fashioned fiberglas insulation still is the preferred method for insulating our trailers.
Terry

[DinubaDave]

Originally Posted by argosy20

Welcome to the Forums!
Yes, it has been tried, yes it crumbles. Because the inside and outside of the coach move slightly against each other, it would turn to powder in short order. The good old-fashioned fiberglas insulation still is the preferred method for insulating our trailers.
Terry

Thanks Terry. Dave

[desi arnaz]

where do you get 2 inch thick pink?

[C Johnson]

Home Depot, Peel the paper backer off and you will end up with approximately 2" thick insulation.

[desi arnaz]

HUH>? is this a peel and stick insulation?

[TomW]

No, the paper backer C Johnson mentioned is the kraft-paper vapor barrier which is not needed for this application.

No stickiness involved.

Tom

[overlander63]

Originally Posted by TomW

No, the paper backer C Johnson mentioned is the kraft-paper vapor barrier which is not needed for this application.

No stickiness involved.

Tom

And since our trailers "sweat," a vapor barrier would be detrimental. It would keep the moisture inside the walls, not a good thing.

[desi arnaz]

but isin't that a 3 inch insulation? is that too much compression?