Link to the article in Flooring to Ceilings: Link
Tord Sjödén and Morten Gustavson have created "fall records" that can not only solve the problems of incorrect cases in wet rooms, but also reduce the time required for working with 65 - 80 percent.
According to the latest water damage survey, published by the Water Damage Center in 2011, 79 percent of the damage in wet rooms is due to the floors. Important to reduce the risk of such water damage is to divert the water from the floor with a well-made fall. It is also one of the National Board of Housing, Building and Planning's clearest requirements for wet areas.
Boverket writes as follows:
“In spaces with floor drains, the floor and its waterproof layers shall have a fall towards the drains in those parts of the space that are regularly exposed to water spraying or water spillage. Relapse must not occur in any part of the space. "
At least ten percent incorrect cases
The industry expects that ten percent of all wet room floors that are float-packed are incorrectly executed, but it is most likely that the actual figure is significantly higher. All defective work is not detected, but those documented during, for example, sample checks or transfer inspections are often subject to disputes or complaints that cost the contractors a lot of money while creating irritation at the clients.
The reason for the high proportion of incorrectly executed fall gaskets is the difficulty in achieving a smooth and correct fall as well as carelessness, which occurs in many occupational categories.
Parachutes can solve the problem
Tord Sjödén and Morten Gustavson may be able to solve this classic problem in the near future. They believe that with their "parachutes" the time required for parachuting would be reduced to 20-35 percent of the time it takes today.
- The biggest advantage, however, lies not in the time savings but in the result being much better and more even, says Morten Gustavson with roots in Norway but living in Sweden since 25 years.
But with the help of the parachutes, the case can be controlled so that it is evenly distributed radially 360 degrees around the entire well. Gutter valleys are eliminated and tiling becomes easier and smoother.
Another advantage, the innovators point out, is that the working environment becomes better. Many and heavy are the sacks of screed that are daily dragged into wet rooms waiting to be completed. Thus, many tired backs may also be delighted by the new technology of creating discs with standard cases of ten milligrams per meter with which they manage to cover the requirement for cases both in the shower and in the other wet space *.
What do the discs look like?
The innovators think of two categories of products. One is customized with the help of milling technology and the other is manufactured as standard elements and distributed to the building department stores in the form of a number of modules.
The boards are manufactured in EPS plastic 300 with a density of 40 kilograms per cubic meter. The surface has the structure of a grid, much like a chocolate cake where the "pieces" hold the dimensions 7x 7 centimeters. Between the pieces there are notches with space for reinforcing nets and underfloor heating loops. The supplier guarantees that the discs hold pressure equivalent to 300 kilograms per square centimeter for short-term loads and 110 kilos for long-term loads.
How are the discs used?
If the discs are tailor-made, we do not need to think about cutting to the material to any great extent, but the discs must of course be fixed. Thomas Davidsson, technical manager at Akzo Nobel Bygglim, recommends the glue Schönox FS. The glue is preferably spread out with an eight millimeter fix comb.
After applying glue, simply re-apply the disc and press so that the adhesion is sufficient. This is done, for example, by laying on a slab of construction plywood or the equivalent and then letting the body weight push to the slabs so that the glue flows out in the best way.
Shortly thereafter, the flow gasket can begin. As usual, it is important to seal the well and other areas that may be sources of leakage. In principle, you only need equalization mass corresponding to the volume between the "chocolate pieces", which also act as level markers. In other words, the amount of flow packs is reduced significantly.
On a test area of 3,25 square meters, 2,5 sacks or just over 60 kilo float pack can be used. It is estimated that this area normally swallows seven sacks, ie 175 kilos. The conclusion of the test is that it will be less dragging of heavy sacks, not as much dusting and mixing and last but not least that the work on the sacking goes much faster.
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