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DuPont™ Tyvek® StructureGuard™

Verified by manufacturer 3 months ago

DuPont™ Tyvek®

Breather membrane for walls.

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+44 (0) 117 452 9050 Website


Suitable for timber walls, metal frame systems, masonry and internal insulation upgrades.


A durable, lightweight, breathable Single layer membrane with enhanced water resistance and airtightness that provides long-lasting protection against the elements.

Features and benefits:

  • Durable, lightweight and flexible.
  • Easy to install.
  • Wind-tight and water-resistant.
  • UV-resistant.
  • Increased energy efficiency.
  • Provides air and moisture management for commercial and residential buildings.
  • Long-term performance.
  • BBA-approved and CE-marked.

General information








100 mm


1.4 mm

2.7 mm

Warranty description

15 year


Pr_25_57_10_94 Vapour-permeable sheetsPrimary


H20/10 Sheet cladding

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

H20/155 Sheet cladding (attached to timber battens)

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

H30/350 Breather membrane

H31/280 Breather membrane

H92/120 Rainscreen cladding

P10/320 Breather membrane

P10/65 Breather membrane

Specification data - Vapour-permeable sheets


To BS EN 13859-2.

Performance characteristics

Water resistance.

Air tightness.

Class (minimum)






Third-party certification

British Board of Agrément (BBA) Certificate.

Weight (minimum)

58 g/m².

Thickness (minimum)

0.175 mm.


Tyvek® Acrylic Tape.

Guidance for specification option:

Single-sided tape for sealing overlaps and making good around penetrations, pipes and windows. Recommended for all Tyvek membranes. Made of Tyvek and acrylic adhesive for durable and long-lasting bonding.

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.

Tyvek® Double Sided 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.

Tyvek® FlexWrap EZ.

Guidance for specification option:

Narrow width, high performance and heavy duty adhesive tape with good flexibility. The pleated Tyvek® base layer allows the tape to be formed around small and complicated penetration details. Developed to provide sealing against water penetration and achieve efficient vapour and air-tightness.

Tyvek® FlexWrap NF.

Guidance for specification option:

High performance flexible self-adhesive flashing tape. 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.

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

0.28 kg CO₂ eq/kg


All packaging materials can be reused (e.g. pallets),
recycled or valorised through energy recovery. The material itself is not intended to be re-used or recycled.
Energy recovery is possible.

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




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