Main accessories description: (1)3-way ridge:it is used as the joining element between the linear ridge and the side ridge for a four-slope roof. (2)Top ridge tile:Install top ridge from one side and cut the first tile in half to avoid the crossover of four sheets on the overlap. (3)roof tile:Overlap by one wave and every sheet should be assembled as close as possible to the one overlapped.Cut the first sheet of second row in half to avoid the crossover of four sheets in the overlap. (4)Side ridge:install side ridge tile from bottom to top with a overlap of 50mm .Align the side ridge in a straight line. (5)Purlin:The purlin space is 800mm for 2.5mm thicness and 1000 mm for thickness 3.0mm. FAQ 1. What machine do you use to cut for fireproof spanish syntheric resin pvc roofing tile Using portable cutting machine. 2. What machine do you use to install the screws? Portable electric drill. 3. How to install forKUNSHANG synthetic resin pvc roof tile/hojas? Overlap, on the vertical direction overlap 150-200mm, on the horizontal direction overlap one wave. 4. What is the temerature limited of the environment that your roof can be used? Temperature range: From Minus 35 degree to 72 degree 5. What color can you produce? White, blue, brick red, green, grey etc, same as our color swatch. If you need special color, please provide sample. 6. Does you charge for the samples? According to our company policy, we just sent free samples to customers while the customers pay for the freight fees. 7. Can you produce according to customers'design? Sure, we are professional manufacturer,OEM are welcome . But the beginning you need pay the mould fees,after certain quantity, the open mould fees will be returned as product.