J-Drain 400 Series

Caltrans Compliant Drainage Composites

Performs a multi-faceted role by providing protection for waterproofing systems and managing subsurface water around building foundations. Soil backfill is retained while allowing water to pass into the drainage system providing hydrostatic relief. Collected water is then conveyed to J-DRain SWD-6 or SWD 12 collection systems.

Consists of a impermeable polypropylene sheet cuspidated under heat and pressure to form a high flow dimpled drainage core. The core is then bonded to a layer of non woven filter fabric. The filter fabric retains soil or sand particles as well as freshly placed concrete or grout, allowing filtered water to pass into the drainage core.

Applications: Foundation Walls, Retaining Walls, Planters & Roof Gardens, Bridge Abutments, Under Slabs.

J•DRAIN 400/420

Maintains a very high flow rate while providing a higher compressive strength for greater depths. A very popular choice for vertical and horizontal single sided drainage applications. Moderate duty.

J•DRAIN 400XL / 420 XL

Designed for extra heavy duty vertical and horizontal applications that demand greater compressive strength and improved filtration for challenging soil conditions. Heavier duty drain core & fabric.

*420 & 420 XL are identical to 400 & 400 XL with the addition of a membrane protective film on the back side.