Fully insulated walls and floor, double insulated in ceiling. These trailers aren't made cheap either, screwed together cabinets provide strength, and also helps prevent cabinets from pulling apart. Water heater by-pass, color coded freeze resistant water lines mounted above the floor. Front to back full walk on roof, provides sturdy roof for snowloads and storage pods. Dont miss out on this special pricing, once it's gone, so is the price!