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Hydroflow HM - HDPE Cuspated Drainage Membrane

Verified by manufacturer 3 months ago

Preflex Hydroflow HM - 8 mm

Premcrete Variant:

Geocomposite drainage membrane

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Application

HYDROFLOW HM should be fixed to the outside of the structure to provide an effective drainage void. If the HYDROFLOW HM is to provide a drainage void against a PREMCRETE waterproof membrane then it should be adhered to the membrane using HYDROPRUFE HCR BUTYL TAPE 100mm width to secure the HYDROFLOW HM in place until backfill has taken place. If the HYDROFLOW HM is to be installed directly against concrete or masonry, then it may be fixed mechanically at 1 metre centres. Laps between adjacent sheets are created by butt jointing the membrane sheets before folding the geotextile membrane lap against the adjacent sheet. This will ensure that no soil fines can penetrate the geocomposite membrane which may result in clogging.

Description

HYDROFLOW HM is a high-performance HDPE cuspated drainage membrane, incorporating a non-woven geotextile bonded to the outer face to produce a geocomposite drainage membrane.


This is designed to provide an effective drainage layer, externally to water resisting structures. The membrane exhibits a good load resistance which ensures that the free draining void is maintained for the lifetime of the structure. HYDROFLOW HM offers excellent chemical resistance to alkalis and organic gases making it suitable for use in a variety of ground conditions.

General information

Color

Black

Material

High density polyethylene (HDPE)

Shape

Rectangle

Length

20000 mm

50000 mm

Width

900 mm

2000 mm

Height

8 mm

25 mm

Manufacturer guidance

Stud height.

Warranty description

25 year

Uniclass

Pr_25_57_51_36 High-density polyethylene (PE-HD) studded sheetsPrimary

CAWS

J40/290 High-density polyethylene/ polypropylene studded cavity drain membrane

Product range

Drainage Membranes

Specification data - High-density polyethylene (PE-HD) studded sheets

Filter layer

Non-woven geotextile.

Stud height

8 mm.

Sheet thickness

1.5 mm.

Weight (minimum)

1 kg/m².

Colour

Black.

Integral plaster key

Required.

Performance characteristics

-

Water storage capacity

5.5 L/m².

Studded layer

High-density polyethylene (HDPE).

Accessories

None.

Hydroflow HM Coil.

Guidance for specification option:

Transports collected water away from the structure.

CompressiveStrength

250 kN/m².

Roll size

2 x 20 m.

Literature

Hydroflow HM TDS

Hydroflow HM TDS

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