Tile laying roofing felt, installation, use galvanized self tapping screws to ensure that the tiles on the next page are fixed from left to right. Inclined gutter tiles (drainage tiles) should be installed first. Install the ridge inclined ridge, and set aside a 150mm gap mortar lining according to the gap, and then both sides of the puzzle tile surface have been blocked with hooks, hook inclined documents and ridge width. The ridge tile is difficult to dry, and the joint of the ridge tile shall be oriented away from the rain. Gutter installation: the bottom of the inclined drainage ditch and tile mortar is paved to fill the domestic gap, plastered with mortar, and then pointed with pigment mortar.