After a roof leak, it causes a lot of damage to the roof decoration, and after the leak, the roof also starts to get mouldy, some fall off the skin and become very ugly. When there is a leak in the roof, many of you are looking for a more professional person to deal with it, which costs a lot of money. For this reason some people want to patch the leaks themselves, but they do not understand the method and do not know how to do it.
There are many reasons why roofs leak. There are defects in the general waterproofing treatment: structural and waterproofing layers even if the original practice is maintained, but generally also in the prefabricated hollow core slabs on the coil waterproofing layer, so it is still inevitable that leakage occurs at weak links such as along the gutter. A serious problem, especially with rigid waterproof roofs in roof gutter drain, is that cracks may appear in the waterproofing layer after construction is complete and water leaks. There are many reasons for cracks: climate change and solar irradiation caused by thermal expansion and contraction of the roof; warping deformation of the roof panel after stress; foundation settlement or wall bearing after sitting pulp shrinkage and other reasons caused by changes in the roof; roof panel material dry shrinkage deformation, etc.
Of course some people like to plant flowers, plants, or vegetables on the roof and so on, too much water for roof gardens: watering water for various plants, pools, fountains and other water bodies are also extremely frequent, so that the roof has increased the water sources that produce leakage. General building roof drainage system, are not considered for the construction of roof gardens required for plant seepage and water drainage problems of water bodies, especially watering water and pool sewage containing plant roots and leaves and sediment and other debris, will make the drainage and pipe blockage, resulting in roof water and water leakage.
Roof construction destroys the original waterproofing layer: roof gardens built on roofs can leak, and the construction of a number of landscaping projects on the waterproofing layer of the roof, which is more prone to leaks, makes it more likely that the waterproofing layer of the roof will be damaged and lead to leaks. Even if holes are not drilled and perforated or iron fixings buried, if not carried out with care, the waterproofing and drainage structure of the roof can still be damaged, resulting in roof leaks. Planting can also sometimes damage the waterproofing, for example, the shovel used to fill in the soil can damage the waterproofing.