It is more difficult to waterproof a sloping roof, because it is a sloped roof, which is somewhat difficult to do. Therefore, if such a roof is to be waterproofed, it is necessary to find a professional master for safety. But many people don’t understand how to do it, and want to know about it. So let’s introduce how to install roof skylights and how to waterproof roof skylights and precautions.
Installation method of roof skylight
1. Carry out hole-opening work
The roof tiles should be opened in the early stage of cutting the roof skylights to prevent damage to the tiles during cutting and restoration of the tiles after the installation is completed. Note: Take various safety measures before construction, perform accurate positioning before roof cutting, and perform construction cutting after completion, and protect the underside of the cut roof stones to prevent damage to the original foundation decoration when they fall. After opening the hole, it should be sealed and protected.
2. Anti-beam manufacturing
After opening the hole, the residue around the hole will affect the construction. First, clean up the surrounding residue. Next, we will make the anti-beam on the structure layer of the original roof. It must be cleaned up within 400mm of the hole, above the structure layer, and exposed. Reinforced concrete structure, the following are the steps to make reverse beam reinforced concrete structure:
(1) Prefabricated template
(2) Pour in the prepared concrete
(3) Remove the template after forming
(4) Concrete leveling and trimming treatment
3. Waterproof treatment
Brush the first waterproof coating on the reinforced concrete structure layer. Note: The brush must be very tight at the junction with the original foundation, and there can be no loopholes. After waiting for the coating to solidify into a film, apply the waterproof coating for the second time, and also pay attention to the treatment of loopholes in the junction with the original basic waterproof coating. The last step is to level the surrounding positions of the cement mortar leveling hole, paying attention to leveling with the leveling layer of the foundation roof.
4. Initial fixation
Fix the skylight in the opening, use a level to ensure that the skylight is level, and then follow the skylight installation manual for the first step of fixing installation.
5. Paving waterproof membrane
The waterproof coiled material wraps the junction of the back beam and the skylight, and then uses fire to stick it to make it into a whole. The key process, the coiled material must be wrapped around the intersection to ensure that it is airtight.
6. Drain board installation
Perform standard installation according to the installation of skylight drainage board.
7. Check the skylight and check the waterproof.
Precautions for roof skylight installation
1. The installation baseline should be determined first, and the installation position of the lower opening of the window should be ensured to be on the same horizontal line.
2. Pay attention to the installation red line of the measured windows to ensure that the installation height of the windows is consistent.
3. Use level ruler for window installation, pay attention to the correction of window frame sash gap.
4. Install the window frame, window sash and cover plate system. When installing, all cover plates must be fixed in place and the screws must be fixed in place.
Roof skylight waterproof method
1. Design requirements
The drainage slope of tile roof should be designed according to factors such as roof truss form, roof base type, waterproof structure type, and local weather conditions. The drainage slope of tile roof should meet the requirements. When the flat tile roof adopts the wooden base layer, a layer of coiled material should be laid on the base layer with a lap width of 100mm, and the coiled material should be pressed and nailed to the wooden base layer with water strips. The spacing of the water strips should be 500mm, and the top tiles should be nailed. strip. The waterproof layer of gutters and gutters should be 1.2mm thick synthetic polymer waterproofing membrane or 3mm thick polymer modified asphalt waterproofing membrane.
2. Construction requirements
(1) No matter what kind of sloping roof, it is inevitable that the coil construction is difficult, the material loss is large, and the efficiency is slow. Our reaction sticky wet paving waterproofing membrane is light in weight, flexible, strong in adapting to the base surface, and strong in adhesion. It can be used for roofs with few or no steel bars. There is a risk of slippage after the construction of conventional waterproofing membranes, which requires special attention.
(2) It is common knowledge that the use of paint for sloping roof construction is particularly prone to cracking. It is common knowledge that the use of polyurethane paint for construction has high requirements on the base surface, which is also known to everyone. Solve these problems: arbitrary painting and full sealing.
(3) After the base surface is cleaned or washed with water to remove scum and dust, the sealing paste can be applied. It is recommended to apply at least twice to the design thickness. Scrape a strip of polymer cement mortar to repair the base surface and strengthen the structure, and then apply a waterproof sealant. According to the size of the construction surface, the waterproof sealant can be painted manually or sprayed mechanically.
(4) The joints between the roof and the ventilation ducts, chimneys, pipes, etc. that protrude from the roof shall be treated with a waterproof layer, and then large-surface coiled materials shall be laid. When internal drainage is adopted for eaves and gutters, the inside of the cup mouth and the inner corners of the eaves should be treated with an additional layer of coiled material.
