Fibrercore Wall System™ is a design feature that is unique to Bigfoot 3000 and 4000 Series Models of Motorhomes, Truck Campers and Travel Trailers, and cannot be found anywhere else in the RV industry.
The wall, roof, and floor of the RV are framed with an insulated tubular aluminum structure, and are then injected with a polyurethane insulation material that provides superior insulation values when compared to conventionally bonded sidewalls.