For the roof and bathroom, if the waterproof treatment is not done well. It will cause us great trouble in the later use process, but there are also many waterproof materials on the market. So we need to have a detailed understanding of several commonly used waterproof materials. In all kinds of buildings, one project must be essential, that is, waterproof treatment, especially for roofs and bathrooms, if waterproof treatment is not done well. It will cause us great trouble in the later use process, but there are also many waterproof materials on the market. So we need to have a detailed understanding of several commonly used waterproof materials, and also give you a detailed introduction to the specifications of the long and short sides of today's waterproof materials.

Specification for overlapping length of long and short sides of waterproof membrane

The lap length of waterproofing membrane is 80- 100mm, and the appropriate lap length should be selected according to the construction technology, materials used and application scope. For example, polymer modified asphalt waterproofing membrane is used for roof waterproofing, and the lap length of the upper and lower layers by full adhesion method is 80mm, and the lap length of the upper and lower layers by empty paving method, point adhesion method and strip adhesion method is100 mm. ..

There are several kinds of commonly used waterproof coiled materials.

1. Asphalt waterproof coiled material: Asphalt waterproof coiled material is a coiled sheet waterproof material made by coating asphalt on the base tire (such as base paper and fiber fabric) and then spreading powdery or sheet isolation materials on the surface.

2. Modified asphalt waterproofing membrane: Compared with traditional oxidized asphalt, the application temperature range of modified asphalt is greatly expanded, and the membrane made is smooth and soft, which can be made into 4-5 mm thick and can be used in a single layer, with reliable waterproofing effect, 15-20 years. Can be divided into: 1, elastomer modified asphalt waterproofing membrane (SBS membrane). 2. Plastic modified asphalt waterproofing membrane (APP membrane).

3.SBS modified asphalt waterproofing membrane: This membrane has good high temperature resistance, can be used in the temperature range of -25 to+100℃, and has high elasticity and fatigue resistance, as well as elongation up to 1500%, strong puncture resistance and tear resistance. It is suitable for waterproof engineering in cold areas and industrial and civil buildings with large deformation and vibration. It has the characteristics of good flexibility at low temperature, high heat resistance, good ductility, long service life, simple construction and little pollution. It is suitable for waterproofing works of Grade I and II buildings, especially for low-temperature and cold areas and buildings with frequent structural deformation. It is widely used in waterproof projects such as roofs, basements and bathrooms of industrial and civil buildings, and waterproof and moisture-proof projects such as roof gardens, roads, bridges, tunnels, parking lots and swimming pools.

4. Self-adhesive waterproofing membrane: it is a waterproof material made of self-adhesive rubber asphalt, tackifier and high-quality road petroleum asphalt prepared from SBS and other synthetic rubber as the base material, tough high-density polyethylene film or aluminum foil as the upper surface material, and peelable silicon-coated isolation film or silicon-coated isolation paper as the lower surface anti-adhesive isolation material. It doesn't need adhesive, and it doesn't need heating and baking until it melts. It can be firmly bonded to the base layer by tearing off the isolation layer.

The construction is convenient and the construction speed is extremely fast. It has rubber elasticity and excellent elongation, and is well adapted to the deformation and cracking of the base. Excellent adhesion to the base, which is often greater than its shear force (out-of-plane fracture), ensuring tight, reliable and seamless lap joint. It can heal small puncture injuries by itself, and when it encounters puncture or hard objects embedded, it will automatically blend with these objects and maintain good waterproof performance. And has good acid resistance, alkali resistance, chemical corrosion resistance and excellent aging resistance in various environments. It is suitable for waterproofing roofs, basements, indoors, municipal works, reservoirs, swimming pools and subway tunnels of industrial and civil buildings. It is also suitable for waterproof engineering of wood structure and metal structure roof. It is especially suitable for waterproof projects such as oil depots, chemical plants, textile mills and grain depots that are not suitable for open flames.

5.APP modified asphalt waterproofing membrane: short for plastic modified asphalt waterproofing membrane? APP coil? , commonly known as APP modified asphalt waterproofing membrane, is a plastic modified asphalt waterproofing membrane with high tensile strength and large elongation, which is made of APP (random polypropylene) or APAO, APO (polyolefin compound) modified asphalt as dip coating material, high-quality polyester felt, glass fiber felt and composite tire fabric as tire base, and fine sand and mineral PE film as negative electrode materials. The used structural base has strong deformability, high temperature and low temperature flexibility, long anti-aging time, good water resistance, strong corrosion resistance, wide application range and simple construction.

6. Synthetic polymer waterproofing membrane: Synthesis refers to taking synthetic rubber, synthetic resin or their mixture as the base material, adding a proper amount of chemical additives and fillers, and going through a certain process.

In the specification of the lap length of the long and short sides of waterproofing membrane, it is generally 80 ~ 100 mm, but the specific length will be determined according to the construction technology, materials used or scope of use. There are several kinds of commonly used waterproofing membranes, and we introduced six kinds of waterproofing membranes to you. Besides, I have already introduced to you under what circumstances it is better to use such waterproof coiled material.