Forum Discussion
myredracer
Jul 31, 2018Explorer II
WNYBob wrote:Sad but true. The way they build these things, the impervious layer (vapor retarder in building construction) is on the wrong side of a wall or ceiling. In cold weather, moisture-laden air migrates to the cold outer skin where it condenses thus leading to mold, rot and/or delam. The foam they use is open cell and lets moisture right through it. When batt insulation gets moisture in it, it significantly reduces R-value and compounds the moisture problems. Defies logic. Ridiculous!
I'm not a brand hater here, but I do have an issue with to frequent delamination. YES! I believe the industry has done us wrong, by offering this type of construction as a viable siding on a camper. Building a siding od a skin coat of "fiberglass" over thin sheet of plywood is not acceptable! This is NOT a fiberglass exterior! Slight moisture or high humidity with a little stress will cause the skin to pop.
But they look so purdy on a showroom floor...
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