Elastomer-modified bitumen waterproofing membrane (SBS) requires construction personnel and construction procedures. The waterproofing of roofing works must be carried out by waterproofing professional teams or waterproof workers. Units without qualification certificates and non-waterproofing professional teams or non-waterproofing workers are strictly prohibited from waterproofing roofing works. The construction unit or supervision company should carefully check the construction personnel’s employment certificate. During the construction, the construction unit shall conduct quality self-inspection, self-inspection, self-correction and make construction records according to the construction process and level. The supervision unit shall do the acceptance work of each process, and the next process and level operation can be carried out after the acceptance is passed. .
Polymer self-adhesive waterproofing membrane can be understood separately. Polymer refers to the finished product of polymer sheet (PVC, EVA, TPO, etc.). Self-adhesive refers to the self-adhesive rubber asphalt compound. Waterproof membrane is isolation. Waterproof membrane, these three things together constitute a polymer self-adhesive waterproof material. After understanding what is a polymer self-adhesive waterproof membrane, the following introduces the characteristics of the membrane. Mixed with the concrete layer will produce a better quality waterproof layer. The two layers are combined with one layer, the performance is improved, and it is more reliable.
Waterproof membrane 89bYq2a03
Elastomer-modified bitumen waterproofing membrane (SBS) does not have double bonds in the main chain of the molecular structure of EPDM, so when it is exposed to ozone, ultraviolet rays, and damp heat, the main bond is not easy to break, so it It has excellent weather resistance, aging resistance, high tensile strength, large elongation, strong adaptability to expansion or cracking of the base layer, value, light weight, and wide operating temperature range (in the range of -40～+80℃ Can be used for a long time), is an efficient waterproof material. It can also be used for cold construction, easy to operate, reduce environmental pollution, and improve workers' working conditions.
Waterproof work and insulation construction cannot be carried out in rainy weather. The quality of the waterproof layer of the coiled material must meet the requirements, and the degree of dryness must meet a certain standard. The corners of the roof, the joints of the gutter and the coiled material, and the water drop, should be firmly laid and meet the technical specifications of the roof waterproofing project. When the waterproof membrane is laid, the air exhaust between the base layer and the membrane should be sufficient to avoid excessive tension and wrinkles. The paving of waterproof membrane should be smooth and straight, and the construction should be strictly in accordance with the elastic marking of the base layer.
Roll laying method: peeling off the release paper and laying the roll material at the same time. During construction, there is no need to open the entire roll of material, insert a steel pipe into the paper core tube in the center of the roll of material, and then two people each hold one end of the steel pipe to the starting end of the position to be laid, and the roll material is displayed forward about 500mm, another person peels off the release paper of this part of the roll and rolls it onto the used packaging paper core. Align the rolled material that has been stripped of the release paper with the baseline that has been bounced lightly, and then compact it. If the construction is carried out under the condition of negative temperature in winter, the traditional technical requirements and maintenance of the base layer, and the influence of temperature are greater than when the coil material is pasted, although the empty paving method can avoid these problems, the advantages in winter and construction are also obvious. The safe and environmentally friendly air paving method requires no primer and less open flame. Coil overlap is a self-adhesive material itself, there is no need to buy and store large amounts of volatile solvents (xylene, gasoline, etc.). It is safe, does not pollute the environment and saves energy.
The waterproof layer is not easy to be pierced. The impurity base surface is easily pierced after being coated with waterproof slurry, forming cracks and causing leakage crisis. Save waterproof membrane. A flat and clean base surface is good for evenly laying waterproof membranes, which can greatly save materials and prevent waste. Strong bonding. Sturdy base surface, the waterproof layer can be firmly bonded to the base surface, and it is not easy to fall off. How to deal with the base surface of waterproof membrane in different positions. basement.
Fortunately, I went to the factory for field inspections. This is necessary because the production process of this material looks very simple, but there are many conditions to do it well. At the factory, you should pay attention to several points, equipment technical status, raw materials (asphalt model, whether there is SBS, tire bottom cloth), and the laboratory. When selecting materials, I often consult the salesmen of several manufacturers to verify in person. Don’t believe that they give you samples, such as samples, so that you can take them to your unit’s warehouse to check whether they are the same. After the large-area coil is exhausted and compacted, the overlapped part is rolled with a small hand-held pressing roller, and the overlapped part is rolled from the inner edge of the overlapped area to exhaust air and stick firmly. Seam paste and seal. Lap seam pasting: The lap joint of self-adhesive coiled material is left at the factory with lap edges. When bonding, only the release paper needs to be peeled off. The lap width is generally 6-7cm. Coiled material lap sealing: The short-side lap joint of the coiled material, the coiled material head, the pipe wrapping, and the special-shaped part should be sealed with a special sealing compound for self-adhesive rubber asphalt waterproofing membrane.
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