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Prefabricated Drainage Composite

US SWD-6 is a modular composite drainage and collection system consisting of a 3-dimensional, high flow drainage core which is wrapped with a nonwoven filter fabric. It is designed to replace conventional sand or gravel covered pipe drain around building foundations and retaining walls.

Soil particles are held back by the filter fabric allowing water to pass through the drain core for easy removal by sump or by running to daylight. A full array of fittings are available.

Property Test Method English Metric
Compressive Strength - Core ASTM D-1621 9500 p/f² 455 kN/m²
Flow - Core ASTM D-4716 30 g/min/ft 372 l/min/m
Thickness - Core ASTM D-1777 1 inch 2.54 cm
CBR Puncture - Fabric ASTM D-6241 250 lbs 1.11 kN
Grab Tensile - Fabric ASTM D-4632 100 lbs 0.45 kN
Permittivity - Fabric ASTM D-4491 2 Sec⁻¹ 2 Sec⁻¹
Apparent Opening Size - Fabric ASTM D-4751 70 USSieve 0.212 mm
UV Resistance @ 500 hours - Fabric ASTM D-4355 70 % 70 %
Flow - Fabric ASTM D-4491 140 g/min/f² 5704 l/min/m²
  • (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  • (3) Historical reference values.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 SWD Shipping & Packaging Information

Roll Size Roll Diameter Roll Width Roll Weight Rolls per Trailer
6" x 165' 6" 165' 35 lbs
12" x 165' 12" 165' 65 lbs
18" X 165' 18" 165' 95 lbs

US SWD 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.