BBA Agrément Certificate
Wall breather membrane - reflective
A heat reflective membrane that helps to improve thermal efficiency by reflecting radiant heat in summer and reducing convective heat loss in winter. As a strong, water-resistant breather membrane with a metallized surface, it is suitable for use in any wall system that requires secondary protection from external moisture. The low emissivity membrane is particularly effective in lightweight wall construction such as timber or metal frame systems and is also popular for masonry and internal insulation upgrades. It's airtight and water resistant, yet vapour-open, properties help to create an energy efficient construction that lasts the lifetime of the building.
Water resistant, breathable, strong, low emissivity
100 x 0.48, 100 x 1.5 and 100 x 2.7 m
H20/10 Sheet cladding
H20/150 Sheet cladding
H20/155 Sheet cladding
H21/10 Vertical timber weatherboarding
H21/110 Vertical timber weatherboarding
H21/111 Horizontal timber weatherboarding
H21/115 Vertical timber weatherboarding
H21/116 Horizontal timber weatherboarding
H21/130 Breather membrane
H21/15 Horizontal timber weatherboarding
H21/20 Breather membrane
H30/10 Fibre cement
H30/110 Fibre cement
H92/120 Rainscreen cladding
M30/265 Building paper
P10/320 Breather membrane
P10/65 Breather membrane
0.48 x 100 m
1.50 x 100 m
2.7 x 100 m
Tyvek® FlexWrap NF
Tyvek® Metallised Tape
Tyvek® Butyl Tape
Tyvek® Double Sided Tape
Standard product features
Mass per unit area:
Water vapour transmission (Sd):
- 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: 75 mm x 25 m.
- Tyvek® Double Sided 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: 50 mm x 25 m.
- 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: 20 mm x 30 m, 50 mm x 30 m.
- Tyvek® FlexWrap NF:
A stretchable and flexible tape made up of three components: a crimped DuPont™ Tyvek® top sheet providing a water tight layer, the butyl mass as an adhesion layer and a paper release liner. It provides excellent watertight adhesion to all Tyvek® breather membranes around non-straight penetrations, such as dormers, door sills, chimney breasts, pipe penetrations and any custom shapes. Roll size: 2280 mm x 22.9 m.