There are many reasons for the occurrence of cracks: climate change and solar radiation caused by the roof of the thermal expansion and contraction; roof after the warping deformation; foundation settlement or composite sheets for pontoon boat decking Extremadura wall load after the contraction of pulp and other reasons caused by roof changes; roof removal or Material shrinkage deformation and so on.

Construction of the roof garden destroyed the original waterproof roof on the roof of the building may still leak, and in the more prone to leakage of roof waterproofing on a number of garden construction, which is more likely to cause roof waterproofing How To Build A Deck Around A 27 Ft Above Ground Pool Sor-trondelag damage caused by leakage. Even if the hole is not perforated or buried fixed iron, if not carefully construction, will damage the roof waterproof and drainage structure, resulting in roof leakage.

It is sometimes possible to damage the waterproof layer, such as the use of Deck Waterproofing Options shovels when filling is likely to damage the waterproof layer. Roof Garden Water More Water and water for various plants, pools, fountains and other water are also very frequent, so that the roof has increased the water source. In general, the roofing of the building does not take into account the drainage of the plant's leaking water and water works required for the construction of the roof garden. In particular, the waste water and the pool of waste water contain plant roots and leaves and sediment. Drain and pipe clogging, resulting in roof garden fence suppliers Bass water and water leakage.