Extensive | SL-I 125 Inverted Separation Layer
SL-I 125 Inverted Separation Layer
SL-I 125 is a black needle punched non-woven geotextile that is thermally treated on both sides and 2 weighs 125 g/m . It is made of polypropylene fibres. Its low weight by unit area combined with its hydraulic properties and double-sided thermal treatment make this product the ideal choice for protection applications on inverted green roofs once rolled out on the specified thermal insulation as advised in the German FLL Guidelines.
Usage of the SL-I 125 layer include:
- Inhibition of the leeching of fine particles into the gaps between the insulation panels
- Facilitating the rapid dry out of the wet insulation layer
- Ensuring the continuous aeration of the build-up
SL-I 125 protection layer is primarily used to protect the thermal insulation layer beneath a green roof from the leeching of fine growing medium particles or gravel into the gaps between the insulation panels. Being thermally treated on both sides, makes the SL-I 125 a hydrophobic layer. An overlapping of at least 150 mm is required between the adjacent separation sheets. Openings must be cut in the separation sheet above the roof outlets.
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