Waterproof membrane construction method?

During construction, appropriate construction methods should be selected according to different design requirements, materials, and project specific conditions.

1, thermal construction process method is divided into three different situations:
(1) Hot Mastic Adhesive Method The method is a traditional construction method in which a hot mastic grease is rolled while a linoleum is rolled and layered. Appropriate range: petroleum asphalt tarpaulin three felt four oil (two felt three oil) laminated paving.
(2) Hot Melting Method In this method, the hot melt adhesive at the bottom of the hot melt type waterproof sheet is melted by a flame heater to perform the sticking. Scope of application: thermoplastic synthetic polymer waterproof membrane lap seam welding.
(3) hot air welding:
The common method is: using a hot air welding torch to heat the lap joints of the waterproofing material to perform lap joints for bonding. Scope of application: thermoplastic synthetic polymer waterproofing membrane lap seam welding.

2. The cold construction method also includes three different methods.
(1) Cold Mastic Adhesion Method The practice is to use factory-made cold asphalt cement materials without applying heat. Apply the felt directly after scraping. Scope of application: Petroleum asphalt felt three felt four oil (two felt three oil) laminated paving.
(2) Cold sticking method The practice is to use adhesives to bond the coils to the base layer, coils, and coils without heating. Scope of application: Synthetic polymer membrane, polymer modified asphalt waterproof membrane.
(3) Self-adhesive method The practice is to use a waterproofing membrane with self-adhesive, without thermal construction, without the need to brush the adhesive material, to directly bond. Scope of application: Synthetic polymer waterproof membrane with self-adhesive and polymer modified asphalt waterproof membrane.

There are also two different situations in the mechanical fixation method.
(1) Mechanical nailing method The practice is to use galvanized steel or copper nails to fix the waterproofing layer of the coiled material. Scope of application: It is mostly used for the laying of polymer modified bitumen membranes in wood base layers.
(2) Pressure burying method In practice, most of the coiled material and the base layer are not bonded, and the pebbles are buried under pressure, but the lap joints and the surrounding area are all sticky. The scope of application for empty shop law, inverted housing.
Roll waterproofing method and advantages and disadvantages.

1, full paste method, also known as full-stick method, is a traditional construction method, hot melt, cold sticking, self-adhesive method can use this method. Its advantages and disadvantages are: When used in three-felt four oil bitumen waterproofing membranes, each layer has a certain thickness of mastic asphalt is full, can improve the waterproof performance. However, if the humidity leveling layer is large or the surface deformation is large, the waterproof layer is susceptible to cracking and cracking. Applicable conditions: The roof area is small, the roof structure is less deformed, and the leveling layer is dry.

2, empty shop method Its practice is, the membrane and the base layer only in a certain width of the paste within the rest of the paste. When paving, the joints of the roof protruding from the corners of the cornices, ridges and floors shall be prominent. The coils and screeds shall be full of stickiness. The width of the adhesive shall not be less than 80mm. The lap joints of the coils and coils shall be full of stickiness, and shall be laminated. At the time, the web and the web should be full. Its advantages and disadvantages: It can reduce the influence of the deformation of the base layer on the waterproof layer, and it is helpful to solve the problem of wrinkling and cracking of the waterproof layer. However, since the waterproof layer is not adhered to the base layer, once it leaks, the water will turbulent under the waterproof layer and it is not easy to find the leak.

3, Article sticking method Its practice is, the coil and the grass-roots layer using a sticky bond, each of the roll and the grass-roots level of the surface is not less than two, each width of not less than 150mm, coil and coil overlap should be sticky The laminated shop should also be full of sticky, its advantages and disadvantages: Because the membrane and the base house have a part of non-stick, it increases the ability of the waterproof layer to adapt to the deformation of the base layer, which is conducive to preventing the drum from cracking and cracking. The disadvantage is that the operation is more complicated, in some places can reduce an oil, affecting the waterproof function.

4, point sticking method The practice is, the coil and the base layer using point bonding, requiring at least 5 sticks per square meter, each point area of not less than 100mm? 00mm, coil overlap should be full, waterproof layer around a certain range The inside should also be fully sticky with the base. When the first layer uses a punch, it is also a point bond. The disadvantages are: the ability of the waterproof layer to adapt to deformation of the base layer is increased, and the problem of wrinkling and cracking of the waterproof layer is solved. When the first layer is made of perforated coils, it can only be used for multi-laminate construction of coils and the operation is complicated.

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