Kitchen, Range, Wood, Recessed, White, Laminate, Undermount, Light Hardwood, Range Hood, and Vinyl Draper's frame consists of cold-rolled steel and closed-cell spray insulation for the floor, walls, and roof. Land Ark RV added an extra layer of rigid insulation outside the framing for the walls and ceiling.  Best Kitchen Range White Undermount Range Hood Laminate Light Hardwood Photos from This Adventure-Ready Tiny House Has a Mud Room and a Fold-Down Deck