Quality screen rooms, sunrooms, porch, patio enclosures, patio rooms, sun porches, carports and deck flooring do it yourself kits from The Leisure Store Inc.
ThermaDeck, is an insulated deck flooring on which a sunroom, Patio Enclosure can be installed. It is available in 4" (R19.5), 6" (R28.5) and 8" (R37.5) thickness. This deck would be installed on a 2" x 10" pressure treated lumber support structure built up on concrete sono tubes or Micropiles that go well below the frost line.
The deck flooring is made with 1 pound expanded polystyrene vacuum pressed between two 7/16" oriented strandboard (O.S.B.) sheets.