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According to DIN 4095, drainage layers must be arranged on ceilings that are to be covered with earth so that excess water can be safely drained away. As a rule, drainage layers are applied over the entire surface, not only under greenery, but also under pavements, terraces, play areas, etc. Floradrain® FD 60 neo, Stabilodrain® and Elastodrain® can even be used under pavements. With correspondingly high drainage elements, puddles can be bridged or the underside sewer system can be used for impoundment irrigation. This is of particular interest for intensive greening on zero-degree roofs. Drainage elements of the Floratherm® type even have a "general building authority approval" as additional thermal insulation.
Technical Information
Installation Instructions
This installation instructions describe the essential steps of using this product. In addition, please observe the relevant standards and guidelines, in particular the provisions of occupational health and safety.
If there is a risk of storms, the installation should not take place.
IMPORTANT: Rolls that have been in the sun can heat up differently, which can cause the freshly rolled out strips to be somewhat arc-shaped. Therefore, leave the membranes for a short time before they are connected to each other.
1) Installation:
The drainage roller conveyors are laid loosely on the butt or with one or two rows of studs overlapping. Jointed rolls can also be connected with connecting clamps, which are pressed into the diffusion openings (perforations in the nubs).
Under green roofs, the drainage roller membranes with the diffusion openings are laid upwards. When used under pavements, the diffusion openings are directed downwards so that no water is stored.
After installation, the drainage taxiways must be covered immediately (UV protection!) and secured against blowing away. The latter can be done for a short time by filling it with water, provided that the actual load does not follow immediately.
2) Cutting:
The drainage roller sheets can be cut with a cutter knife (with a hard blade) or a hot wire. When cutting, care must be taken to ensure that the layers that have already been laid are not damaged under any circumstances! If damage does occur, it must be reported and repaired immediately.
Above roof drains, the drainage roller conveyors must be cut out in size to match the opening of the inspection shaft to be installed above.
Tool recommendation: Hand-held circular saw
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