Colorful asphalt shingle is one of the commonly used waterproof materials for roofing. The construction steps are very important and will have a great impact on the future roof. Let's take a look at the construction steps of colorful asphalt shingle roofing with asphalt shingle manufacturers.
1. In order to ensure that the colorful asphalt shingles are laid neatly and meet the requirements, the line should be bounced on the layer before laying, the center line in the vertical direction is perpendicular to the ridge, and it is in the center of the roof, between each line in the vertical direction. The distance is 167mm for the three-tab type and 125mm for the four-tab type. The first horizontal line should be bounced at a distance of 333mm from the cornice. The interval between other horizontal bounce lines is 142mm. In actual construction, a small amount of adjustment can be made, but the spacing cannot be greater than 142mm. The top of each colorful asphalt shingle should be bounced at the same time The horizontal line coincides.
2. Before laying the first layer of colorful asphalt shingles, the initial layer should be laid (the cornice drip board should be set at the cornice). The initial layer is cut by the colorful asphalt shingles with the skirts removed, and the initial layer is the slope bottom of the roof. Lay it directly at the location, with the adhesive side facing up and toward the cornice. The surface in contact with the roof is smeared with asphalt glue and fixed on the roof with roof nails.
3. At the inner corners formed by the roof gables, parapet walls and chimneys that protrude from the roof, before paving the colorful asphalt shingles, it is necessary to lay waterproof membranes on both sides of the inner corners, with a width of not less than 250mm on each side. The head of the gable flooded colorful asphalt shingle is fixed with metal battens, and the upper part of the battens is sealed with sealing material.
4. Gutter waterproofing should first lay a layer of modified asphalt waterproofing membrane with a width of 800mm or more at the gutter, and then pave colorful asphalt shingles on this basis.
5. For the connection between the roof and the vertical wall, step flooding can also be used. At the junction of the two sides, a metal flooding with a side length of 200mm×200mm bent into a right angle is first installed, and 100mm is overlapped on the initial layer of the colorful asphalt shingles on the roof. Fix it, pave another 100mm on the wall, and then pave the colorful asphalt shingles of the first house outside, just to cover the entire roof, and then pave the second layer of metal flooding and colorful asphalt shingles of the second house, and so on, in the vertical On the wall, the side with a length of 200mm and a width of 500mm is extended into the wall and sealed with asphalt glue or cement mortar.
6. For sloping roofs with dormer windows, the right joint of dormer window roof and main roof is laid by unilateral lap gutter method; the junction of the wall around the dormer window and the main roof can use the aforementioned step flooding and metal flooding. Laying with water or parapet flooding method.
7. For sewage pipes and ventilation pipes protruding from the roof, the leveling layer around the pipes should be made into a truncated cone, a groove should be left between the pipe and the leveling layer, and the sealing material should be embedded, an additional layer should be added around the pipe, and synthetic polymer should be used. The material is made into a flashing ring, which is wrapped on the outer wall of the pipe to be glued, the upper opening of the flashing ring is fastened with a metal band, and the pipe and the flashing ring are sealed with a sealing material.
8. Cut the ridge tiles. The ridge tiles can also be cut with three-pronged colorful asphalt tiles. The ridge tiles should be overlapped along the maximum frequency wind direction, and the two slope asphalt linoleum tiles should be fully overlapped. The width should not be less than 100mm.
The above content is the construction steps of colorful asphalt shingle roofing that I have introduced to you. I hope this knowledge can be useful to everyone. If you want to learn more about colorful asphalt shingles, please continue to pay attention to the official website of O'Naisi asphalt shingles.
