1,Recommended choice of steel structure material50*50 square tube, not less than 40*60, the main beam down a beam spacing size of 14 centimeters, the spacing between the beams is 66 centimeters, the angle of the beams on both sides under the main beam is 130 °. The dimensions of the steel structure in the video are for reference, the specific dimensions are subject to the actual situation of your own roof.
2,Pre-installed drip board, the first piece of drip board only half a piece can be, lap and fix the drip board and then directly hit the screws to fix, the back of the drip board installed in turn.
3,Pre-punched holes for installation of main tiles, larger than the screws2 mm, screws in the beam and tile arch pit will be pressed to the beam flat contact and waterproof cap base flat pressure tile surface, screws can be screws, screws can not be too tight Reserve space for the thermal expansion and contraction of tiles to avoid damage to the tiles, but also can not be too loose to prevent seepage of water in the gaps.
4,After the main tile is installed, and then install the ridge tile, install the ridge tile a ridge tile only half installed in the middle beam, the ridge tile on the screws and the main tile can be the same, the same can not be too tight or too loose.
5,Install the front ridge shingle header and the left and right gable ends, build up and screw in.
