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Airtight Vapour Control Layer (AVCL) with high vapour resistance and low emissivity metallised surface, for roofs and walls. Suitable for installation behind internal linings of wall or roof assemblies or on cement particle board behind insulation in rainscreen-cladding systems. Note: product must be positioned on warm side of insulation.

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- Tyvek® Metallised Tape

Single sided tape composed of an acrylic adhesive on a metallised Tyvek carrier. For sealing laps in metallised Tyvek® membranes and making good around penetrations, pipework, windows and door openings. Roll size: 75mm x 25m.

- Tyvek® Double Sided Acrylic Tape

Double sided acrylic tape for sealing laps in Tyvek® membrane and bonding to smooth surfaces. Excellent adhesion properties under extreme conditions. Strong initial tack. Roll size: 50mm x 25m.

- Tyvek® Butyl Tape

Double sided butyl based sealant, used to seal fixing penetrations in a Tyvek® membrane and form a moisture and airtight seal between a Tyvek® membrane and most commonly used building materials. Tape is compatible with brickwork, blockwork, masonry, timber, metalwork and most plastic products. Roll sizes: 20mm x 30m, 50mm x 30m.

NBS Specification

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This product is associated with the following NBS Create clause:
45-65-50/325 Plastics sheets

Product specification

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DuPont Tyvek


+44 (0)844 4068722

Product reference

AirGuard Reflective


[Tyvek® Metallised Tape]
[Tyvek® Double Sided Acrylic Tape]
[Tyvek® Butyl Tape]

Manufacturer details

Bristol & Bath Science Park, ,
Dirac Crescent, Emersons Green,,
Avon, BS16 7FR
Tel +44 (0)844 4068722
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