Safe-T-Cover - Backdraft Damper ecb Petromat engineered paving fabrics are

Petromat engineered paving fabrics are used as a moisture barrier and stress absorbing interlayer beneath flexible pavements such as asphalt overlays or a chip seal

Geotex 1291 is a nonwoven geotextile fabric that is made from high-quality polypropylene staple fibers that is needle-punched to form a dimensionally stable fiber network

These HDPE mats are waterproof and will not rot

promoting ideal growing conditions

Used to fasten Geotexile fabric

Safe-T-Cover - Backdraft Damper ecb Petromat engineered paving fabrics areThis model is a rear flanged gravity supply (intake) wall shutter. The frame and blades are mill finish aluminum with a galvanized reinforcement strip on each blade for added strength and counter balancing efficiency. The blades have a felt seal on the leading edge for quiet closing and better protection from the weather. Recommended for vertical mount supply (intake) only. The blades will pivot at the bottom and fall with gravity to open. Spring