Compared with the building waterproofing industry, waterproofing membrane is an indispensable part of building waterproofing, suitable for roof and underground waterproofing engineering, protective engineering, tunnels, subways, roads, bridges and other industrial and civil buildings. However, a large part of people are concerned about whether the profit is large, and few people are concerned about the quality of waterproofing membrane. Therefore, some waterproofing membrane manufacturers have adopted non-standard membranes as national standard waterproofing membranes.

As for the types of SBS waterproofing membranes currently used in the market, there are many specifications and prices for waterproofing membranes. So, how can we distinguish the quality and authenticity of waterproofing membranes? Waterproofing membrane manufacturers believe that it is still necessary to identify them according to conventional methods.

1. Look at the trademark, SBS waterproofing membrane to see if the trademark is forged, which confirms an old Chinese saying: "Seeing is believing".

2. By hand feel, at normal temperature, the coil material is flexible and will not crack or harden.

3. Check the appearance, whether the signs are complete, how the waterproof membrane works, the surface of the membrane should be flat, without holes, missing edges, cracks, lumps, the tire base should be soaked, the end face should have no obvious oil stains, and the thickness should be uniform.

4. Low temperature flexibility: Cut 10 specimens of the same size longitudinally along the roll, place them at the designated temperature in the refrigerator for 2 hours according to the marked signal, and observe for any cracks or fissures. Note: Good waterproof rolls will not crack.

5. Compare the price with the market price and choose the average price of PVC waterproofing membrane.

The use of waterproofing membranes can be said to be quite extensive, but although the materials are good, we also need to consider whether the structure of the roof itself, improper construction methods, and later use will affect the effectiveness of waterproofing membranes. Today, the editor will talk about several factors that affect the effectiveness of waterproofing membranes.

The three elements that affect the effectiveness of the coil material.

1、 The influence of external environmental factors.

1. The impact of sunlight.

The sun is unfavorable for flexible waterproof materials. The energy of sunlight increases the temperature of asphalt felt and induces chemical reactions, thereby accelerating the oxidation aging of waterproof materials, reducing the toughness and increasing the brittleness of asphalt felt.

2. The influence of temperature.

High temperature can accelerate the oxidation and aging process of asphalt TPO waterproof roll material. For some waterproof materials that have added plasticizers (plasticizers are generally low molecular weight oily substances with high boiling points, are not easy to evaporate, and have good compatibility with asphalt felt, which can increase the toughness of asphalt felt), high temperature can also promote the migration of plasticizers, leading to an increase in material brittleness.

3. The impact of rainfall (including both precipitation and snowfall).

Generally speaking, the amount of rainfall does not have a significant direct impact on the performance of waterproof materials. For ordinary waterproof rolls with water resistance problems, frequent and long-term roof waterlogging can also cause local damage. The snowfall process is accompanied by cooling and a relatively long melting process, which can also increase the brittleness of ordinary polymer self-adhesive film waterproof rolls.

2、 The impact of improper construction methods.

Improper construction methods are also one of the reasons for leakage or damage of roof asphalt felt waterproofing membranes, such as uneven or uncleaned roof base, resulting in the formation of isolation layers with mixed soil and dust, low strength and poor quality of leveling layers, large roof area, and unreasonable setting of compartment joints.

It is precisely due to these external environmental factors and improper construction methods that ordinary waterproofing membranes experience leakage or damage before reaching their service life. They are usually caused by the "bulging", cracking, and peeling of the waterproofing material and bonding layer of the membrane.

3、 The influence of the liquid roll material constructed by the roof itself.

The structure of the building roof itself has a significant impact on ordinary waterproof materials, such as the slope of the roof. If the roof slope is relatively large, rainwater can be smoothly discharged from the roof, reducing the contact time between rainwater and asphalt felt waterproof membrane, and also reducing the probability of leakage of waterproof membrane, thereby extending the service life of waterproof materials.

The impact of roof usage is that during normal use, the asphalt felt waterproofing membrane may be damaged due to maintenance of the roof or installation of other equipment on the roof. When repairing the roof without proper protection, the asphalt felt is easily stepped on, and other equipment installed on the roof may damage the ordinary waterproofing membrane for fixation.

Shandong Wanhe Waterproof Materials Co., Ltd. is a professional waterproof system supplier that integrates scientific research and development, production, sales, and construction services. It is a source manufacturer with quality assurance and price details. Please call 18263660598 for more information http://www.whfscl.com/ .