Ardex Rapidlay Membrane – 36.25m2 System

£628.18 exl. VAT

Per Unit


SKU 113111415263024889 Category

PVC Damp Proof And Isolating Membrane 25m x 1.45m Roll.

  • Provides a stable, moisture resistant barrier substrate
  • Ideal for use over damp and contaminated sub-floors
  • Reduces or eliminates the need for mechanical preparation

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Ardex Rapidlay Isolating Membrane

Ardex Rapidlay Isolating Membrane is a specially coated and patterned fibreglass reinforced sheet underlay designed to overcome the problems sometimes encountered in laying floorcoverings, particularly sheet vinyl flooring, over new or old sub-floors in domestic and light commercial areas.

  • It provides a continuous base which is stable and resistant to damp
  • It cuts down laying time as there is no need to wait for the normal subfloor drying times
  • It is dimensionally stable
  • Quick installation can be achieved as it is a sheet system
  • Allows for a new temporary floor to be laid over an existing floor (without potential adhesive damage on uplifting)
  • Low VOC and solvent free product

Ardex Rapidlay Isolating Membrane Uses

Ardex Rapidlay Membrane can be laid over a variety of surfaces, such as old sub-floors, vinyl flooring, ceramic tiling, sheet metal, sub-floors contaminated with oil or paint, or damp sub-floors. It can also be used over asphalt sub-floors.

  • Screed or concrete substrates where construction moisture has not fully dried out (max. 5% moisture content, 92% RH)
  • Anhydrite Screeds with a maximum of 2%moisture content (carbide method)
  • Areas where sub-floors have been exposed to water spillage
  • Old sub-floors which do not contain a fully functioning damp proof membrane
  • Over old, soundly fixed flooring when a temporary covering is to be applied (without adhesive)
  • Suitable for use on heated concrete or cement/sand screeds up to 27ºC maximum temperature


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Additional information

Suitable for Substrates

PVC Membrane

Thickness: 1.4mm

Thickness: N/A

Compressive Strength @ 28 days: N/A

Walkable: N/A

Finished Floor Covering After: 

Suitable for Substrates: N/A



For more than 60 years, ARDEX has been a quality leader for the flooring and tiling industries, the brand of choice for installers and distributors. ARDEX today is still an independent family-owned business. This means that in our permanent efforts to achieve market-shaping innovations, we have been able to retain our most important tradition: uncompromising quality. This is something we guarantee by applying the latest rigidly enforced quality assurance procedures, making it no coincidence that they are regarded as a premium partner of the construction industry. Strong internal growth and intelligent acquisitions in foreign markets have put the Group on the map with 53 subsidiaries and 3,000 employees on all continents. With its 14 major brands, the ARDEX Group generated a worldwide annual turnover in excess of 770 million euros in 2018. This marks an important milestone and they are becoming one of the world’s leading suppliers of high-quality specialist building materials.

Technical Information