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NBS Source

DuPont™ AirGuard® Reflective

DuPont™ Tyvek® Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Internal airtight vapour control layer (AVCL) offering high vapour resistance and low emissivity.

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Suitable for use in SFS, timber, CLT and masonry wall systems, pitched and flat roofs. Suitable for installation behind internal linings of wall or roof assemblies or on cement particle board behind insulation in rain screen-cladding systems.


A 100% airtight vapour control layer (AVCL) with very high

vapour resistance and low emissivity reflective surface.

Features and benefits:

  • Chlorine resistant.
  • Significantly boosts thermal performance when used with a services void/ batten space.
  • Highly vapour resistant.
  • Airtight and water resistant.
  • CE-conformity for plastic and rubber vapour control layer (EN 13984).
  • Reflects ca. 95% of radiant heat.
  • Reduces heat loss by increasing R-value of the airspace to 0.75 m²k/w.
  • Good mechanical strength.
  • Reaction to fire: Class E.
  • Considerably reduces risk of condensation.

General information











50000 mm


1500 mm


Pr_25_57_65_60 Plastics sheetsPrimary


H20/10 Sheet cladding

H20/150 Sheet cladding

H20/155 Sheet cladding

H30/10 Fibre cement

H30/110 Fibre cement

H30/120 Fibre cement

H30/261 Air and vapour control membrane

H30/30 Air and vapour control membrane

H31/10 Metal

H31/110 Metal

H31/120 Metal

H31/261 Air and vapour control membrane

H31/45 Air and vapour control membrane

H40/110 GRC cladding

H40/230 Air barrier

H51/110 Cladding

K10/155 Wall lining system (metal studs)

K21/10 Wood laminate flooring

K21/110 Wood flooring

K21/115 Wood laminate flooring

K21/120 Battened wood flooring

K21/130 Battened wood floating floor

K21/140 Battened wood laminate flooring

K21/145 Composite laminate flooring

K21/146 Laminate flooring

K21/150 Wood lining

K21/160 Wood lining on battens

M30/265 Building paper

P10/240 Insulation fitted between floor joists

P10/310 Air and vapour control layer

P10/60 Air and vapour control layer

Specification data - Plastics sheets


Polypropylene and polyethylene with aluminium foil.


Vapour control layer.


To BS EN 13859-2.

Performance characteristics


Tensile strength (minimum)

210 N/50 mm.

Tear resistance

247 N/ 223 N.

Elongation to break

25 %/ 22 %.

Water vapour resistance (minimum)

10 000 MN·s/g.

Fire performance

To EN 13501-1, class E.

Third-party certification

British Board of Agrément (BBA) Certificate.



Root inhibitor

Aluminium foil.

Physical properties




Weight (minimum)

149 g/m².



Thickness (minimum)

0.43 mm.

Width (minimum)

1.5 m.

Roll length (minimum)

50 m.


Tyvek® 2060B 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.

Digital objects

Platform Compatible Version Certified to




Revit 2016


Download now from NBS National BIM Library


Tyvek Technical Wall Manual 2022

Tyvek Technical Wall Manual 2022

Tyvek Technical Roof Guide 2022

Tyvek Technical Roof Guide 2022

Third party certifications

  • CE Marking: CPD 89/106
  • 08/4548 : Relates to an air leakage barrier/ vapour control layer for use in pitched roofs
  • 90/2548 : Relates to an air leakage barrier/ vapour control layer for use in walls and floors

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