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Enkadrain® 3811R Data Sheet

Enkadrain 3811R

Product Description:

Experiencing concrete slab moisture issues? Maxxon now offers an exterior underslab drainage solution to help move water away from your concrete substrate. Enkadrain 3811R is one of a new generation of environmentally conscious Enkadrain products. This drainage composite consists of a post-industrial recycled core of fused, entangled filaments and a geocomposite fabric bonded to each side. The filaments are molded into a square waffle pattern that maintains the flexible design of other Enkadrain products. This product, because it exceeds 40% post-industrial recycled content, can help contribute up to two LEED® points when used in conjunction with other recycled content products. Enkadrain 3811R may also contribute towards additional LEED® points when used with a green roof by reducing stormwater runoff, heat islands, and energy consumption. The second fabric eliminates the need for protection board and stops penetration and migration of bitumen membrane.

Recommended Applications:

  • Foundation walls
  • Green roofs
  • Plaza decks
  • Retaining walls
  • Beneath slabs
  • Earth sheltered homes
  • Underground parking
  • Exterior planters

Product Advantages:

  • Excellent durability
  • Protects waterproofing during and after backfill
  • Second fabric eliminates need for protection board
  • Conforms to irregular surfaces and corners
  • Waffle design creates open flow path — even during backfill
  • Continuous flow even under high loads
  • Long rolls reduce installation costs by reducing butt seams and eliminating interlocking
  • Recycled content polymer may help contribute toward LEED® points
  • Increased flow rates over same thickness nylon and HDPE drains
  • 3" fabric overlap flap on both sides

Technical Data:

Core Material: Recycled Entangled Filaments
Fabric Color: Black
Thickness: 0.45" (11.43 mm)
Total Weight: 23.7 oz/yd2 (803.7 g/m2)
Core Weight: 16.0 oz/yd2 (542.6 g/m2)
Compressive Load Test
ASTM D 1621
>30,000 psf (>1,436 kN/m2)
No failure

Flow Rates:

Pressure 1.0 Gradient 0.5 Gradient 0.2 Gradient
250 psf 20.2 gal/min/ft 13.6 gal/min/ft 7.7 gal/min/ft
500 psf 18.1 gal/min/ft 12.4 gal/min/ft 7.3 gal/min/ft
1000 psf 17.9 gal/min/ft 12.2 gal/min/ft 7.2 gal/min/ft
2000 psf 16.8 gal/min/ft 11.2 gal/min/ft 7.0 gal/min/ft
3000 psf 12.9 gal/min/ft 7.9 gal/min/ft 4.9 gal/min/ft
3600 psf 8.6 gal/min/ft 4.7 gal/min/ft 2.8 gal/min/ft
5000 psf 3.8 gal/min/ft 2.5 gal/min/ft 1.3 gal/min/ft
8000 psf 1.7 gal/min/ft 1.0 gal/min/ft 0.5 gal/min/ft