Prevents fine particles from forming slugde in the drainage layer
Maintains a high water permeability
We have also developed a filter mat type 150 (for extensive green roofs) and a type 200 (for intensive green roofs), as alternatives to the 105 gram filter mat.
The new Optigreen filter mat type 105 is composed of a rip-resistant fabric that has a lower weight, higher pressure, and higher tensile strength than the previous product version.
The Optigreen filter mats meet the applicable standards and guidelines for green roofs per FLL. Type 105 offers a lower weight than type 150 and type 200 and a proportionately lower functional performance than the heavier products.
