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DuPont™ Tyvek® AirGuard® Smart

Verified by manufacturer 3 months ago

DuPont™ Tyvek® Third party certifications:
  • VOC Content test Certificate

    VOC Content test Certificate

    Certificate type

  • EPD


    Certificate type

  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Internal airtight vapour control layer (AVCL) with variable vapour resistance.

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Suitable for roof, wall and floor elements in projects of low to medium moisture classification.


A 100% airtight vapour control layer with extreme variable vapour resistance which prevents structural damage and loss of insulation efficiency by adapting to moisture conditions and regulating the humidity in building elements.

Features and benefits:

  • Reduced drying out time, with additional drying capacity for unplanned humidity infiltration.
  • Extends the durability, health and longevity of buildings.
  • Greater energy efficiency and enhanced interior comfort.
  • Vapour resistance ranges from 1 MNs/g to 182 MNs/g.
  • Allows trapped moisture within a structure to escape.
  • Excellent values in volatile organic compounds testing, has been tested according to the ISO 16000 evaluation scheme.
  • Durable against alkali hence compatible with mortar and concrete surfaces.
  • Can be used in renovation on the outside: water column (to EN 20811) is 3 m.
  • CE marked to EN 13984.
  • Tyvek® AirGuard® Smart (dupont.co.uk)

Extract from the BBA certificate (please download the full certificate for reference):


Condensation — the product will reduce the risk of interstitial condensation (see section 6).

Airtightness — the product is an air barrier and can reduce heat loss by air infiltration (see section 7).

Strength — the product has adequate strength to resist damage during installation (see section 8).

Properties in relation to fire — the membrane is classified as E in accordance with EN 13501-1:2007 and its use is restricted in some cases by the national Building Regulations (see section 9).

Durability — the product will have a lifetime equal to that of the building element in which it is installed (see section 11).

NHBC Standards 2021

In the opinion of the BBA, DuPont™ Tyvek® AirGuard® Smart, if installed, used and maintained in accordance with this Certificate, can satisfy or contribute to satisfying the relevant requirements in relation to NHBC Standards, Chapters 6.2 External timber framed walls, 6.9 Curtain walling and cladding, 6.10 Light steel framed walls and floors, 7.1 Flat roofs, terraces and balconies, 7.2 Pitched roofs and 9.2 Wall and ceiling finishes.

In NHBC projects where the product is used in conjunction with a vapour-closed insulation, a diffusion-open membrane must be used on the cold side of the insulation.

4 Use

4.1 TYVEK AirGuard Smart is satisfactory for use as an AVCL for the building envelope in new-build and refurbishments in domestic and non-domestic buildings up to and including humidity class 3, in the following specifications:

  • at the rafter line in slated or tiled pitched timber warm roof constructions in conjunction with an HR or LR underlay;
  • at ceiling level in warm pitched roof constructions;
  • at ceiling level in slated or tiled pitched ventilated cold roof constructions;
  • in walls in timber, masonry and steel-frame constructions;
  • ground bearing floors (insulation above floor slab, damp proof membrane below);
  • suspended floors; and
  • conventional flat roofs. 

General information




Manufacturer guidance

White with red logo print.




High density polyethylene (HDPE)




50000 mm


1500 mm


0.2 mm

Warranty description

15 year


Pr_25_57_65_60 Plastics sheetsPrimary


H20/10 Sheet cladding

H20/155 Sheet cladding (attached to timber battens)

H20/150 Sheet cladding (attached to metal support systems)

H21/10 Vertical timber weatherboarding

H21/20 Breather membrane

H21/130 Breather membrane

H21/15 Horizontal timber weatherboarding

H21/116 Horizontal timber weatherboarding

H21/115 Vertical timber weatherboarding

H21/110 Vertical timber weatherboarding

H21/111 Horizontal timber weatherboarding

H30/10 Fibre cement

H92/120 Rainscreen cladding

M30/265 Building paper

P10/65 Breather membrane

P10/320 Breather membrane

Specification data - Plastics sheets


High-density polyethylene (PE-HD).


Vapour control layer.


To BS EN 13984:2013.

Third-party certification

British Board of Agrément (BBA) Certificate.

Performance characteristics


Tensile strength (minimum)

To EN 12311-2, 390 N/50 mm (MD); 380 N/50 mm (XD).

Tear resistance

To EN 12310-1, 75 N (MD); 65 N (XD).

Elongation to break

To EN 12311-2, 16% (MD); 19% (XD).

Water vapour resistance (minimum)

To EN 13859-1:2010, W1.

Fire performance

To EN ISO 11925-2, Class E.



Physical properties



White and red.

Guidance for specification option:

White with red logo print.

Weight (minimum)

To EN 1849-2, 92 g/m².



Thickness (minimum)

0.2 mm.

Width (minimum)

1.5 m.

Roll length (minimum)

50 m.

Vapour transmission rate (to BS EN 1931)

13 m.

Temperature resistance

-40°C to +80°C.

Air permeability

To ISO 5636/5, 2000 s.


Tyvek® 2060B Tape.

Guidance for specification option:

Single sided tape for sealing overlaps in Tyvek® membranes and making good around penetrations, pipework, windows and door openings. Very durable ensuring long term performance. Roll size: 75mm x 25m.

Tyvek® Double Sided Acrylic Tape.

Guidance for specification option:

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.

Guidance for specification option:

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.

Sustainability data

Contains Red List materials


Country of material origin


Country of product manufacture


Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

0.53 kg CO₂ eq/m²


BIM objects


NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version




Third party certifications

VOC Content test Certificate

VOC Content test Certificate

ISO 16000 VOC emission report first page



EPD - DuPont™ Tyvek® Airguard® Smart (2009B)

BBA Agrément Certificate

BBA Agrément Certificate

BBA certficate 2009B




Tyvek & AirGuard Product Range 2022

Tyvek & AirGuard Product Range 2022

Tyvek & AirGuard Airtightness Solutions 2022

Tyvek & AirGuard Airtightness Solutions 2022

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