Bigfoot & NL Construction?
So how are these campers built? I understand the clamshell. They have foam insulation, I assume sprayed to the interior walls? How are the cabinets attached to the walls? Or, is anything attached to t...
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Wayne, there are some pine strips in the walls replacing the foam in various locations - you can sometimes see slight distortion, also since the pine has less R value than the foam, on a cold morning you can see condensation patterns revealing the framing.
Bigfoot used to use extruded polystyrene (in my 1986 5th wheel and also the 1998 camper as I recall) but now use expanded polystyrene (beadboard). Too bad, the extruded is stronger and a better insulator even than polyurethane. In real cored construction in yachts none of that would be used, but the core materials they use are out of budget for the RV industry.
Bigfoot used to use extruded polystyrene (in my 1986 5th wheel and also the 1998 camper as I recall) but now use expanded polystyrene (beadboard). Too bad, the extruded is stronger and a better insulator even than polyurethane. In real cored construction in yachts none of that would be used, but the core materials they use are out of budget for the RV industry.
