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Tyvek AirGuard Reflective Vapour Barrier Membrane from DuPont - 50m x 1.5m Roll

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£129.71 Incl. VAT
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Product Description

DuPont AirGuard Reflective is a 100% air tight air & vapour control layer (AVCL) featuring a metallised surface with a very low emissivity internal vapour barrier that combined with an airgap can enhance thermal comfort by reflecting up to 95% of radiant heat back into the building.

AirGuard Reflective can be installed in roofs, below ceiling levels as well as in walls.

Effective condensation control

When installed continuously with all laps and penetrations sealed, DuPont AirGuard Reflective provides effective condensation control for all building types, including high humidity structures such as swimming pools or textile factories. We recommend using Tyvek Metallised Tape to seal all laps, penetrations and cuts in the membrane, and also for connections to adjacent airtight layers at roof and floor junctions.

Installing airguard reflective

DuPont AirGuard Reflective can be installed either way round, but its reflective surface must always face an airspace. The preferred method is to install it with the reflective side facing into the building, then fix a standard 25mm batten over the membrane.


With the combination of the metallised vapour-open membrane Tyvek Enercor, DuPont AirGuard Reflective offers two main advantages :

  • Thermal comfort - it provides protection against heat loss by radiation and convection.
  • An efficient moisture management - it provides effective control against interstitial condensation both by diffusion and by convection.


Length: 50m.
Width: 1.5m.
Roll size: 75m2.
Roll weight: 12kg.
Reaction to fire: Class E.
Water vapour transmission: (Sd) 2000m.
Emissivity: 0.05.
Certification: BBA certified.
CE Marked.


  • Airtight suspended timber floors.
  • Warm pitched roof construction.
  • Cold pitched roof construction.
  • Timber frame construction.
  • Metal roofing solutions.
  • Protection for high-rises.
  • Protection for wall construction.
  • Rainscreen cladding systems.

Product Documents


WIDTH 1500mm LENGTH 50m


Permeability Air Tight
Vapour Barrier
Roll Size 75m2

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Product Reviews

5 / 5 1 reviews
Ian Jakeman
16th November 2020
Excellent suppliers
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Tyvek AirGuard Reflective Vapour Barrier Membrane from DuPont - 50m x 1.5m Roll

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