Quick Links - Click To Jump To Section:

   
• Approvals and Standards
• System Components
• Storage and Handling
• Preparation
• Installation
• Usable Temperature Range
• Additional Information

Approvals and Standards

• Third party accreditation (BBA 94/3009)
• CE Mark EN 13967:2017
• Quality Management System ISO 9001:2015
• Occupational Health and Safety System ISO 45001:2018
• Environmental Management System ISO 14001:2015

System Components

• VisqueenPro Double Sided Jointing Tape, 50mm x 10m
• VisqueenPro Single Sided Tape, 75mm x 25m
• Visqueen GR Lap Tape, 150mm x 10m
• Visqueen Top Hat Units
• Visqueen Preformed Units - contact technical for more information on 0113 2455450 (option 2) or send a message to [email protected]
• VisqueenPro Detailing Strip, 300mm x 10m, 500mm x 10m
• Visqueen TreadGUARD 300, 2m x 75m
• Visqueen TreadGUARD 1500, 1m x 2m

Storage and Handling

Visqueen High Performance Damp Proof Membrane should be stored horizontally, under cover in its original packaging.

Care should be taken when handling the product in line with current manual handling regulations.

Preparation

Visqueen High Performance Damp Proof Membrane should be installed on a smooth continuous surface e.g. grouted beam and block floor, a compacted blinding layer e.g. 50mm thick sand blinding, or smooth concrete blinding. The substrate should be free from irregularities such as voids or protrusions.

The membrane can be cut with a sharp retractable safety knife or robust scissors.

When installing the membrane in demanding site conditions, use Visqueen GR Lap Tape in place of Visqueen Pro Single Sided Tape.

Installation

Visqueen High Performance Damp Proof Membrane should be loose laid on the substrate. The membrane should be clean and dry at the time of jointing. It should be overlapped by at least 150mm, bonded with Visqueen Pro Double Sided Jointing Tape and sealed with Visqueen Pro Single Sided Tape.

Alternatively lap joints can be heat welded to achieve an effective seal. Welded lap joints can be less than 150mm provided the joint integrity is not compromised.

Damp proofing seals should be formed around all service entry points. Visqueen Preformed Top Hat Units are available for sealing service entry pipe junctions. The base of the top hat and the upstand should be bonded using Visqueen Pro Double Sided Jointing Tape and sealed with Visqueen Pro Single Sided Tape. The upstand should be secured with the supplied jubilee clip. Alternatively Visqueen Pro Detailing Strip can be used to seal service entry pipe detailing.

Forming an effective barrier to damp with the membrane may give rise to complex three-dimensional detailing. To simplify complex or awkward junctions e.g. internal and external corners, Visqueen Preformed Units are available. Alternatively Visqueen Pro Detailing Strip can be used to seal awkward junctions.

If the membrane is punctured or perforated a patch of the same material should be lapped at least 150mm beyond the limits of the puncture and bonded with Visqueen Pro Double Sided Jointing Tape and sealed with Visqueen Pro Single Sided Tape. Alternatively a patch can be formed using Visqueen Pro Detailing Strip and lapped at least 150mm beyond the extents of the membrane puncture.

The membrane should be covered immediately after installation to prevent damage from following trades, ultraviolet light, etc. Care should be taken to ensure that the membrane is not punctured, stretched or displaced when applying the final floor covering.

When reinforced concrete is laid over the membrane the reinforcements and spacers must be prevented from puncturing the membrane. Where there is potential risk for damage, the membrane should be covered with Visqueen TreadGuard protection, screed, or other approved protection material before positioning the reinforcement.

In areas where high levels of settlement are anticipated, Visqueen Pre Applied Membrane should be considered.

Usable Temperature Range

It is recommended that Visqueen High Performance Damp Proof Membrane and all associated system components should not be installed below 5°C.

Additional Information

To assist build sequencing, Visqueen Zedex CPT High Performance DPC is available for damp protection through masonry wall constructions.

For additional detailing information, contact Rawlins Technical on 0113 2455450 (option 2) or send a message to [email protected].

The product is recyclable and categorised under LDPE recycling code 4.