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US 200/220DB

US 200/220DB

Prefabricated Drainage Composite

US 200DB consists of a high flow dimpled drainage core formed from a light duty impermeable polymeric sheet cuspated under heat and pressure then bonded to a layer of non-woven filter fabric. The filter fabric retains soil and sand particles or freshly placed concrete or grout, allowing filtered water to pass into the drainage core. Please limit to 20 feet of backfill.

US 220DB includes the addition of a protection sheet bonded to the back side of the core for soft membrane waterproofing systems. US 220DB is compatible with waterproofing systems without the use of a protection board. Please limit to 20 feet of backfill.

Collected water is then conveyed to the US SWD collection system.

Property Test Method English Metric
Compressive Strength - Core ASTM D-1621 11000 p/f² 527 kN/m²
Flow - Core ASTM D-4716 18 g/min/ft 223 L/min/m
Thickness - Core ASTM D-1777 0.4 in 10.16 mm
CBR Puncture - Fabric ASTM D-6241 250 lbs 1.11 kN
Flow - Fabric ASTM D-4491 140 g/min/f² 5704 l/min/m²
Apparent Opening Size - Fabric ASTM D-4751 70 USSieve 0.212 mm
Grab Tensile - Fabric ASTM D-4632 100 lbs 0.45 kN
  • (1) At the time of manufacturing. Handling, storage, and shipping may change these properties.
  • (2) Maximum average roll value (MaxARV).
  • (3) Historical reference values. These properties are no longer recognized by ASTM or AASHTO for geosynthetics.

US 200/220DB Shipping & Packaging Information

Roll Size Roll Diameter Roll Width Roll Weight Rolls per Trailer
4' x 50' 18" 4' 38 lbs 331

US 200/220DB Installation and Use Instructions

This information is provided for reference only and is not intended as a warranty or guarantee. US Fabrics assumes no liability in connection with the use of this information.