Applications of Waterproof Film

The waterproof film and tpu film are getting more and more popular as the reliable products, which are widely applied in the Europe to externally waterproof the basement areas. Usually, the specialist spray equipment or the trowel would be likely to apply the waterproof film and tpu film. It is the popular choice for most of the basements tanking projects in the United Kingdom. The contractor can get the waterproofing job done with tpu film and you do not need to purchase equipment or employ another specialist contractor.

Advantages of Waterproof Film
Some contractors are making use of the traditional technique, through which a notched trowel is utilized to distribute the waterproof film and tpu film over the substrate. This notched profile is then promptly smoothed off with the flat side of the same trowel. As soon as this first coat has firmed, the second coat is applied in the same method; a notched trowel to distribute the material in the right thickness then a flat trowel to smooth. On the purpose of determining which the preferred approach is, it is only a matter of going back towards the essential principles of waterproofing. It's a fundamental principle for most waterproofing systems which is much better to get two coats of a material than just one. Generally one coat would theoretically be sufficient to form a waterproofed structure. However, it is likely to imperfect in the concrete or to apply with the waterproofing that could result in small misses or pinholes. The second coat is there to ensure that a total seal is obtained under site conditions. With detailed applications, it is unlikely that a pinhole would exist at exactly the same place inside two consecutive layers of waterproofing.

Issue Brought by Waterproof Film
Another problem would arise when it rains between the first and second coat, especially in case a horizontal application sloped to falls. With a couple of hours of curing, the waterproof film and the tpu film can still resist a light rain shower but not standing water. If the deck is well drained, the rain would pass over the part-cured coating without side effect, and the water would not penetrate the concrete. However, the rainwater can still penetrate the concrete in case the open technique is applied. In this case, the partially cured coating would result in the reduced bond and slowed final cure. Compared with the traditional technique, the open notches can retain water in a higher level. This is the case that you cannot avoid unless you make all notches run towards the falls.

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