Green Roof Filter Fabric

Bmi canopia filter fleece.

Green roof filter fabric. Beneath the growing media and above the drainage system the filter fabric keeps the media from clogging up the drainage while allowing water to flow freely. A layer of filter sheet will prevent substrate dropping into the drainage layer. Filter fabric is designed to separate the growing media from the drainage system on vegetative green roofs. Puncture resistance as per astm d4833 130 lb.

Filter fabric generally needle punched non woven polypropylene geotextile with the following qualities. Density as per astm d3776 8 oz yd2. Root resistant filter fabric serves to prevent root penetration into the underlying roofing if it is not root proof. Since it is significantly less likely to clog than common filter fabrics it is ideal for separating green roof soils from underlying drainage media or drainage plates.

Green roof solutions has a 3 5 oz filter fabric ff35. Filtration layers are required in green roof systems as a separation and containment layer to limit the amount of fine particles reaching the drainage layer and rainwater outlets. The function of the existing roofing is completely preserved. It prevents small soil particles from filling the drainage layer and so the water buffering function of the drainage layer remains intact for longer.

The fabric is resistant to degradation from uv exposure as well as the. We re pleased to introduce our new j drain eco fabric. The green roof does make sure that the durability of the roofing is extended. An important consideration with filter fabric is the promotion of the flow rate while preventing media runoff.

This also determines the lifespan of the green roof. Green roof solutions has a 3 5 oz filter fabric ff35. Strong enough and adequate puncture resistance to withstand stresses of installing other layers of the green roof. Our greenroof root resistant filter fabric is 100 post consumer recycled nonwoven polyester and are manufactured using post consumer recycled material pcr chip.

It s green even before its green our green vision is now even greener. Optigreen separation fabric weighs approximately 200 g m2 6 oz yd2. They are also useful for encapsulating other components such as telescopic drainage tubes to reduce the amount of fines getting into them. Polypropylene fibers are needled to filter fabric for a stable network that retains dimensional stability relative to one another.

Enough filter sheet is set down over the roof so that at the vertical edges of the planting beds the sheet will be the same height as the substrate. An important consideration with filter fabric is the flow rate while preventing media runoff. The grs ff35 has a high flow rate of 150 gallons per minute per square foot.