Spec InterpretationLight Weight Nonwoven Geotextiles
US Fabrics offers a complete line of lightweight nonwoven geotextiles made from staple filaments of polypropylene fiber that are needlepunched and heat set.Most lightweight nonwoven geotextiles (3 oz. To 5 oz.) are used as filter fabric in subsurface drainage applications. High flow rates and small openings are what make these geotextiles ideal as filter fabrics. Wrapping a nonwoven filter fabric around the drainage system allows water into the drain while preventing soils from clogging the system. They also provide the critical function of filtration in green roof systems.
In addition to drainage, lightweight nonwoven geotextiles are often used as landscape fabric, weed barrier or for lightweight separation under pavers.
Another use for lightweight nonwoven geotextiles is as asphalt overlay fabric. These particular geotextiles are designed to hold tack coat and withstand extreme temperatures. Placing an overlay fabric between the old asphalt and the new overlay reduces reflective cracking and extends the life of the asphalt. A moisture barrier that protects the overlay from water intrusion is created when the geotextile absorbs the tack coat.