4x4 m Modern Playroom fully insulated
3x3 m Modern Garden Office fully insulated with UPVC double glazed windows and doors. Floor structure (thickness 128mm) 45x100 mm Pressure Treated Bearers, 100 mm Rockwool Insulation, Vapour Barrier, 28 mm T&G Floor Wall structure (thickness 190 mm): 12.5 mm Plasterboard, 100 mm Rockwool Insulation 100 mm, 45x100 mm Pressure Treatead Framing, 10 mm OSB Sheet, 12 mm T&G Exterior Cladding roof structure (thickness 230mm) 12 mm T&G Boards, 100 mm Rockwool Insulation, Sturdy Roof Beams, 12 mm OSB