Roof should be set around the brick wall, retaining the lower part of the retaining wall and gutter. When planting roof for the flexible waterproof layer, the above should also be set to a layer of rigid protective layer. In other words, the roof can be used one or more (composite) waterproof fortification, but the top should be a rigid waterproof layer, the roof of the [url=http://plasticwooddecking@#$%&/solution/case/5167.html]gate designs for sloped gardens[/url] waterproof layer of water should be higher than the overflow 100 mm. Rigid waterproof layer due to roof thermal expansion and contraction and structural floor deformation and other effects, should appear irregular cracks, resulting in rigid roof waterproof failure. To solve this problem, in addition to 30 ~ 50 mm thick fine stone concrete in the configuration of steel wire or steel mesh, the general can also be used to set the floating layer and sub-grid seam and other methods to solve.

The so-called floating layer that is isolation layer, the rigid waterproof layer and structural waterproof layer to adapt to the deformation of the activities. Construction practice is in the floor leveling layer, shop 1 layer of dry carpets or waste [url=http://plasticwooddecking@#$%&/solution/case/5168.html]outdoor 2x6 tongue and groove decking Mozambique[/url] paper to form a separation layer, and then do dry waterproof layer. Can also use the floor of the insulation layer or sand ash and other loose material to form a separation layer, and then do rigid waterproof layer.

Dry waterproof layer of the sub-grid is based on temperature expansion and structural beam plate deformation and other factors to determine, according to a certain sub-reserved 20 mm wide seam, in order to facilitate the expansion of the joints filled with ointment cement. It should be noted that: the rigid waterproof layer of the grid construction quality is [url=http://plasticwooddecking@#$%&/solution/case/5169.html]concrete fence repair[/url] often not to ensure that, in addition to the parapet water should be strictly required to do sub-grid joints, the rest of the roof can be no sub-grid seam. Roof rigid waterproof layer is best once all poured out to avoid leakage.

Waterproof surface must be smooth and smooth, to be completed construction, brush 2 waterproof coating to ensure that the waterproof layer of the protective layer design and construction quality. To pay special attention to the waterproof layer of anti-corrosion treatment, waterproof layer on the sub-grid joints can be "a cloth four Tu" cover seam, and use good [url=http://outsidewpcfloor@#$%&/outdoor_deck/7839.html]composite panel new manufacturing factory arabia[/url] corrosion resistance of the caulking ointment. Should not be planted root system developed, the strong role of the waterproof layer of plants, such as pine, cypress, banyan and so on.