Waterproofing
After buying and selling a used house, waterproofing is particularly important, especially in water-logging areas such as rooftop balconies. Although there is a five-year civil law warranty against water leakage, if problems occur, repairs may damage the structure and litigation will be time-consuming. Common waterproofing materials include PU, waterproof blanket and elastic cement, among which elastic cement is cheap and ductile. The cost of hiring workers to carry out the work is high, mainly due to the shift fee and the time cost calculated based on the number of coating layers. If the area is small, you can operate it yourself and save unnecessary expenses.
