Mansard loft extension with grey slate tiles, white PVC fascia, black PVC guttering and high performance 3 layer felt over 'flat roof' - Loft Conversion Roofing Company Garage Roof, Shed Roof, House Roof, Grey Slate Tile, Roof Sealant, Outdoor Pergola, Diy Pergola, Pergola Kits, Mansard Roof