2. After the warranty period, if the owner pays the maintenance fund, the property will apply for the use of the maintenance fund, and the property will invite someone to repair the leaking roof. However, according to the regulations, the maintenance of water leakage outside the warranty period should be paid from the management fee paid by the owner. If the amount of work involved is large, it is necessary to start the special housing maintenance fund, which is also paid by the owner.
Treatment method of roof leakage
1. First, professionals should look for leaks or cracks.
2. If the roof is not waterproof, just remove the leaking part by 2 ~ 3 cm, then clean it and water it with asphalt (there is a finished asphalt coating now).
3. If waterproof has been done before, it is necessary to chisel off the original waterproof layer and leveling layer, find the leakage position and chisel off the empty drum part of leveling layer. Before chiseling, use a hand-held cutter to cut the leveling layer to prevent new hollowing caused by vibration when chiseling the leveling layer. After finding the leakage position, clean it up and use polyurethane coating with a thickness of1.5 mm. ..
4. Insulation board can be laid, because the height of insulation board is more than 20 cm, which can achieve the dual effects of protecting waterproof layer and heat insulation. Families who don't want to use insulation boards can consider using steel wire mesh concrete (the technical term is called steel wire mesh fine stone concrete), and the leakage prevention effect is also very good.
5. For a flat roof, if there are obvious cracks in the roof, tenon the cracks into a "V" or "U" shape with tools, fill them up with caulking ointment, and then wrap them with waterproof coiled material above and around the cracks. If you want to strengthen the leak-proof effect, you can also lay another layer of waterproof coiled material.