Permeable Surface & Drainage Channel System

Create a simple, filtered drain alternative for storm water runoff on hard, impervious surfaces. Developed originally to satisfy permeable, pervious driveway requirements, this ADA-compliant (less than 1 in. wide) exterior linear drain filter expansion joint puts filtered rainwater in the underneath gravel detention area of the pavement, thus increasing the usable surface and eliminating costly storm water drainage infrastructure. The unit is virtually undetectable between the joints of a concrete slab and gives storm water a path to a sub-surface drainage bed to percolate back into the soil to conform to environmental conservation and protection requirements.