Elastomer modified asphalt waterproofing membrane can be divided into various parts of underground buildings (including basement floor, elevator shaft, basement exterior wall, basement roof, etc.) and roofing, podium, balcony (terrace), and bathroom waterproofing according to the carcass. Moisture-proof. Process flow and operation requirements. Grassroots requirements. The waterproof base layer must be flat and firm, without protruding sharp corners, pits and surface sanding, the surface should be clean and dry, and the corners should be rounded with a radius of 50mm as required. The moisture content of the grassroots level should be free of water droplets.
Leakage is strictly prohibited for the waterproof layer of the roofing PVC waterproof coiled material. Basic items. The surface flatness of the waterproof layer of the PVC waterproof membrane should meet the drainage requirements without water accumulation. The quality, laying method, crimping sequence and lap length of PVC waterproof coiled materials are in line with the requirements of roofing engineering technical specifications, and the welding is firm, without slippage, edge warping, blistering, wrinkles and other defects. The practice of flooding, openings and deformation joints should meet the requirements of roofing engineering technical specifications, with firm bonding, tight sealing, additional layers of coiled materials, and flooding facades, etc., which should meet the design requirements and the requirements of roofing engineering technical specifications.
Waterproof membrane 474l81G26
The elastomer modified bitumen waterproofing membrane is divided into the carcass. The waterproofing membrane is mainly used for building walls, roofs, tunnels, highways, etc., to resist external rainwater and groundwater leakage. It can be rolled into a roll. As a non-leakage connection between the foundation of the project and the building, the flexible building materials of the company are the waterproof barriers of the entire project and play a vital role in the entire project. The main products are bituminous waterproofing membranes and polymer waterproofing membranes. This article describes in detail the construction methods and precautions of waterproofing membranes.
If it is torn at this time, the coil may be torn off along with the dust or loose layer. The correct method is to stick it tightly according to the instructions, and the waterproof effect is beyond doubt. The self-adhesive waterproofing membrane is a self-adhesive waterproofing membrane made of polymer resin, high-quality asphalt as the base material, polyethylene film, aluminum foil as the surface material, and a separation layer. The product has strong bonding properties and self-healing properties, and is suitable for construction in high and low temperature environments. It is divided into two types: self-adhesive with tire and self-adhesive without tire.
Polypropylene polymer is a waterproof material that melts as soon as it is baked. It is glued with cement and becomes a cold adhesive method. SBS waterproof coiled material cold welding method. A. First spread the oil series primer (cold primer) evenly on the primer layer. B. After the substrate treatment agent is dried, an adhesive (chloroprene adhesive or SBS adhesive) can be used for uniform use at one time. C. After the modified coil is placed in the predetermined position, smear and paste. 10cm lap joints should be left in both directions. The market is fiercely competitive, and there is no standardized market environment. Some manufacturers flow into the market with shoddy products. Many people ask how to distinguish the advantages and disadvantages of sbc waterproof membrane. There is a saying, I believe everyone has heard that people don’t know the goods, and money knows the goods. It’s good to buy things at a high price. This is of course. Every material is paid for, and the initiative is given to the manufacturer. A good way. It is the one who knows it by himself, everyone controls it, and it can also play a role in purifying the market, helping the elastomer modified bitumen waterproofing membrane to move towards a virtuous circle.
All detailed nodes and yin and yang corners are treated with cement mortar in arcs. Kitchen and bathroom, balcony. The cast-in-place concrete floor at the base level must be vibrated and compacted. The base layer must be level and solid, and the base layer has cracks or pits. Use 1: cement mortar or polymer cement mortar to repair and level it. All corners of the base layer are made into smooth small rounded corners with a radius of 10mm uniformly. The finished flue and exhaust pipe must have water-retaining stems. All pipe fittings, floor drains, drains and other parts must be installed firmly.
In the same time period, the bathroom and kitchen area are small and there are many pipes. If the coils are not easy to cut and paste, the technical requirements of the construction staff are relatively high, and there will be a pungent smell, which is not environmentally friendly when used indoors. Therefore, the most common use for bathroom waterproofing is the kitchen and bathroom waterproof slurry, which is specially developed for the yin and yang corners, pipes, sanitary ware, floor drains and other parts of the bathroom that are easy to seep. The standard construction is carried out in accordance with the requirements during construction. Of course, the waterproof effect is better and the waterproof life is longer. The base layer must be dry, and the moisture content is required to be within 9%. During the test, a piece of coiled material is placed on the surface of the base layer. After 35 hours, the construction can be carried out if the lower surface is basically free of water droplets. Before construction, carefully clean the residual cement mortar residue, dust and debris on the surface of the base layer, and then apply the primer. It is required to apply uniformly, apply it at a time, and dry for more than 8 hours (depending on the temperature, it is better not to stick to the feet) ). Complicated parts treatment: the yin and yang corners should be made into a figure eight, and corner parts such as parapets, pipe roots, chimneys, vents, downspouts, expansion joints, etc. should be added as additional layers, generally 30cm wide and 68cm overlapped .
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