Delta Memtech R1
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Application

For use on sites with radon gas.

Description

A flexible, loose-laid gas barrier for use on sites with radon gas.

The barrier incorporates a three-layer low density polyethylene membrane with a polypropylene reinforcement grid. The membrane is extremely flexible for ease of installation and robust to cope with site conditions.


Features and benefits:

  • Resistant to radon gas.
  • Protects against water and water vapour, acting as a damp-proof membrane (DPM).
  • High resistance to tearing.
  • Can be laid on sand blinding, Delta Protech Geotextile Protection fleece or a smooth concrete finish.
  • Can be patch repaired.
  • Laps can be joined together either by using a 50 mm Delta Gas Barrier butyl tape or welding by on-site contractors.
  • CE-marked and BBA-certified.

General information

Color

Red topside with grey underside. Other colours are available. Consult manufacturer for details.

Red

Grey

Material

Polyethylene

Size

50 x 2 m

Roll length x roll width.

50 x 3 m

Roll length x roll width.

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

D21/350 Gas-retardant membrane

F30/360 Gas resistant damp proof courses/ cavity trays

F30/54 Gas resistant dpcs/ cavity trays

J40/120 Loose laid plastics or rubber sheet damp proofing

J40/140 Loose laid plastics or rubber sheet gas retardant damp proofing

J40/145 Loose laid weldable polyethylene gas retardant damp proofing

J40/35 Loose laid plastics or rubber gas retardant damp proofing

Specification data - Plastics sheets Enhanced data

Material

Polypropylene.

Purpose

Damp-proof membrane.

Performance characteristics

-

Tensile strength (minimum)

500 N/50 mm.

Maximum tensile strength.

Tear resistance

400.

Nail Tear Resistance.

Elongation to break

15.

Third-party certification

CE-marked and BBA-certified.

Physical properties

-

Colour

Other colours are available. Consult manufacturer for details.

Red topside with grey underside.

Dimensions

-

Thickness (minimum)

0.5 mm.

Width (minimum)

2 m.

3 m.

Roll length (minimum)

50 m.

Permeability

  • Radon permeability: 4.3 x 10–12 m²/sec.
  • Methane permeability: <514 ml/m²/day/atm.
  • Carbon dioxide: <514 ml/m²/day/atm.


-

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

16/5367

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