With the advancement of urbanization, there has been an increase in private cars and a shortage of land resources. This has made the construction of large underground garages inevitable. At the same time, in order to alleviate the urban heat island effect, reduce urban noise and air pollution, and improve people’s living conditions, it is necessary to plant vegetation on roofs and garage roofs.

Although the soil layer on the planting roof is very thick and the water seepage rate is slow, once the seepage water reaches saturation to form a stagnant water area, it will not only affect the growth of vegetation but cause plant root rot and plant withering. In addition, hydrostatic pressure will destroy the weak waterproof layer, causing leakage. Consequently, it is necessary to pay attention to these potential problems when constructing large-scale underground garages in order to avoid any negative consequences.

Consequently, a reliable filtration and drainage system is essential to preventing water damage to your roof. Excess water in the soil can quickly erode the roofing material, leading to leaks and other problems. The drainage system will help to remove the water from the earth, preventing it from eroding the roof. In addition, the system will also help prolong the roof’s life by reducing the pressure on the roofing material. As a result, a well-designed filtration and drainage system is essential to protecting your investment in your roof.