More Over
Only when a filter fleece is covered with a filter fleece does a seepage layer become a filter-stable drainage layer, as required by "DIN 4095 – Drainage for the Protection of Structural Facilities". On drainage elements (Floradrain®, Floraset®, etc.), the SF. Nonwovens of the TG or PV type should be applied to drainage fills (especially if they consist of sharp-edged materials) and to Elastodrain®. The system filter fleeces are laid with an overlap of approx. 20 cm. Filter fleeces should not be exposed to direct sunlight for long periods of time, as they are not UV-stable.
Particularly in the pitched roof area, shear-absorbing elements such as Georaster® and Floraset® FS 75 are used, depending on the roof pitch. The jute erosion control fabric serves as additional erosion protection.
☛ tender text "System filter SF"
☛ tender text System filter SF" strip for pitched roof greening
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.
1) Laying:
The installation is carried out loosely on drainage layers with approx. 20 cm overlap. On roof edges and rising components, the SF system filter can also be raised a little.
If the filter fleece is laid on the Floraset® FS 50 or FS 75 drainage element, this should be attached to it at certain points using the fleece button. To do this, a small incision is made in the filter fleece, through which the fleece button is inserted. It is then pressed into the drainage element. One fleece button per m² is recommended.
To protect against UV radiation and blowing away, the SF system filter must be covered immediately after installation.
2) Cutting:
The fleece can be cut with a cutter knife (with a hard blade) or sturdy universal scissors. 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.
The fleece must be cut out in a circle over roof drains, about 1 cm larger than the roof gully all around (cross cut is not enough!).
Tool recommendation: Slitter rewinder
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