The 60mm width is ideal for sealing overlaps and connections with the recommended 25-30mm of tape on each surface.

The tape matrix available here on our datasheet will help you to choose the correct product for your application. Vapour Control LayersNovia Gas Barriers are sealed with 50mm double-sided butyl tape, using an overlap of at least 150mm. A final top lap seal is then applied using the metallised BOPP tape or 100mm foil tape. Using both 50mm butyl tape and the metallised BOPP tape is vital when installing the Novia Methane Pro DPM - please see the full product datasheet for full information.

Due to the nature of the application practically any type of tape may be suitable, but we would advise the use of our foil or double-sided butyl versions on the grounds of cost. Tescon Vana is a robust airtight adhesive tape for creating permanent airtight seals on membranes and airtight accessories. To ensure good adhesion on wood fibre insulation boards (e.g. Gutex), concrete, plaster or smooth masonry, Tescon Primer RP or Tescon Sprimer should be used first to stabilise the surface. On surfaces that are painted or may come away, detach or delaminate, we recommend doing an adhesion test first. This overlap tape is 38mm wide, so there’s less chance that the joint can be contaminated from dust or soot, giving a more secure seal. Compared to one-tape overlap seals this overlapping tape gives a better seal and can even be applied in temperatures from -30C to +80C. This adhesive tape is integrated into Easy-Trim’s breather membrane range to create an airtight and rainproof seal over laps. The hot-melt-based, pressure sensitive breather membrane tape can speed up the installation process as you simply place the underlay into position, remove both lines from top and bottom, ensure it’s positioned correctly and then join overlaps. Press the overlaps to confirm a good and tight seal.Pro Clima membranes include a printed guide along the edge to easily line up the correct amount of tape.