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Details of roof structure and waterproof construction

  • Author:Daniel
  • Release on :2017-05-29
First, the water of the mouth, floor
A large area of waterproof layer before construction, first floor water, floor drain to seal treatment. In cups of water, it has buried a glass of water and is taking in common with thick-sealed sealing material, to avoid the place in torrential rain in the breakout phenomenon. Water leakage and drainage of the floor around the diameter of 500 mm, with a waterproof coating or a film-coated seal as an extra layer, the thickness of not less than 2 mm. In a glass of water and drainage of the floor with its layer joint, clean the leveling layer that should be reserved, 20 * 20mm concave , fill out the sealant. Water and mouth of the waterproof layer, should be placed the cup, with rain on the bottom of the disc is pressed, at the bottom of the tiles and the waterproof layer should be coated with sintered materials glued on the bottom of the seal with seal

The second, gutters, ditch gutter
Like the gutter, water drainage, waterproof layer is often the subject of rain erosion or soaking, so in the gutter and drain angle should be sealed the width of sealing material, flat and elevation on either side, not less than 30mm. And then place a layer of membrane or 2 mm thick brush being modified as an extra layer.
In order to avoid the risk of zero offset, gutters, eaves and additional roof layers should be empty or sticky store, the width should be 200 mm.
Above the page to deal with, and then make the gutter, ditch usually waterproof. If a layer of waterproof membrane, in particular attention should be paid to the paving method of the gutter or gutter store must be from a ditch at the end of the first, along the trench or ditch the surface of the water, such as having a very wide ditch the longitudinal seams, the treatment back with sealing material fence.

Thirdly, the expansion joints
Seam subgrids (or seam) and settlement (or deformation of joints), hereinafter referred to as compensators. The general construction work-proofing products are setup in order to make a waterproof layer to effectively adapt to the impact of different foundations deformation to enhance the effect of waterproof.
The sub seam has a rigid sub of the waterproof layer, shaking the sub and seam of the protective layer subgrade. That the rigid layers of the waterproof layer sub and balancing of sub, according to the requirements of "patterns" are set up on the support roof, the angle of the waterproof roof and the protruding roof intersection. These parts are the most concentrated stress. If the structure is not in place, it will be one of the sources of the leak. Then, it should neglect, in strict compliance with the requirements of "specification" of embedded sealing material. Construction, you should also check whether the sub seam is flat, dense, simple, clean, not satisfying the requirements should be immediately repaired in order to ensure the quality of the caulking. The balancing layer should be treated before the construction of a large waterproof layer area and a rigid layer of waterproof and protective layer should be treated after construction of the waterproof layer.
The roof of settlement ponds, usually with additional walls, the walls and intersections of the roof should be ready for the first layer, and then the concrete seam through the web, the ruler width in the ruler must be 2-3 times the width if the seam is too long, it should be overlapped with a lap and knees to be stuck together with glue and then the supporting material is embedded in the seam and then the knees They are the top cover of the aperture with concrete or metal lid. If the high and low scale of settling cracks, it is not suitable to cover the concrete, but should be combined with a suitable metal or coil polymer lid. The upper and lower extremities of the use of seals with solid steel nails were laid down on the high extension walls and additional wall elevations, both ends of the lid and lid with seal of the sealing material. In this way, the rain does not enter the seam, the leak will not be produced. Moreover, because the seam is all the waterproof membrane, and its width is much larger than the width, enough to cope with any impact deformation from down to up, so even if the rain through the lid for the seam, it will never cause the leak.

Four anti-feixe on the water hole

The Anti-feixe water hole is often part of the leakage. In this case, the designers often have a certain responsibility. If the design requirements are not clear, resulting in blind construction workers, the bottom of the hole can not come out, causing a hole in the water, or too small hole water retention, the hole can not be waterproof design. But while the construction of seriously responsible personnel, while the long-term take corrective measures, these disadvantages are completely overcome. After first open the lower elevation of absolutely precise, not for the holes in the water; Secondly, the water hole of the section too large, is less than 150 mm height, width, not less than 250 mm, to facilitate drainage. Finally, carefully driven waterproof design, the first hole and a hole in both ends of the sealed sealing material in tight, and then build a polymer coating or coil to make sure that some of the foundations (not less than 2 mm) thick for the uniform; The surface to be standardized, flat. If a hole of water buried pipes, pipe diameter is not less than 75 mm, the tube at both ends and concrete contacts in the groove and sealed material sealing. This is the only way we can effectively prevent roof leakage due to water holes.

Fifthly, the highlight of the pipeline roof

The plumbing and roof the intersection is also very critical place, should be highly evaluated. Highlight the roof tube, while the council and reversed after the installation of two carved the inverted plate has been installed. For the first, you could be in the plumbing and roof of the transfer in the use of waterproof mortar with conical shape and to put aside the 20 × 20mm groove to introduce sealing material, and then incorporate the additional layers. Because of its key parts of additional layers to make two. If the coil construction, at the top of the tubing should be added a metal rim or wire loop, at the bottom and base should be connected to natural, smooth. To the extent that this latter is especially critical, poor handling, easy to leak. You should first use the cement expansion in the reinforced reinforcement with plug-ins, to avoid shrinkage scratching, and then in strict compliance with the previous treatment carefully construction of the tubing.

Six, the yin and yang angle
The waterproof layer of yin and yang corner of the grass roots must conform to the requirements of the "specification" made of the arc (or pure) radius according to the different materials are: the polymer synthetic membrane 20 mm; Modified asphalt membrane and waterproof coating 50 mm; 100-150 mm bitumen membrane. Because these parts of the stress concentration often preceded by a large area of water and damage, so that these should be improved with an extra layer. Additional layers can be painted, coated or reinforced with paper roll. Its width on each side (height, aircraft) must be ≥ 200 mm. Corner should be the main store, the angle should be primarily an empty store, it is suitable for the large store to paste the width of each side to 50 mm.

7, Waterproof layer Header
Waterproof layer removal sites is difficult but also critical, it can not be at any time Alice, Delamination and lead to a leak. This should be strictly according to the "Norms" require the construction of a fine, should not be taken lightly.
The waterproof layer on the cornice of the head, must be 50-100 mm from the edge of the cornice; In parts of the water head of the height of the roof of the equilibrium layer should not be less than 250 mm.
The shell Waterproof layer The head can be coated directly waterproof many times with the material, seals can be. If the membrane is waterproof first processing, the links are more, should be strictly according to the construction procedures. Waterproof layer before the first construction in the head, to put aside the groove, the groove should be wide and uniform, smooth formation, so that the construction of the Groove waterproof layer when the end; A large area in the Waterproof construction; Fine processing head. This means the first pressure groove at the end of a metal braid reinforcement coil and then sealed with the sealant and then cleans out with cement mortar.
Note that: Although we can highlight the need to pay special attention to us, corners and other design elements, but does not mean that you can skip the large waterproof construction area. If a large area of quality waterproof design, but the future will also produce leakage. Just two, both, together with scientific management and maintenance, to completely heal the leak for the waterproofing design problems of common quality.