Vapour Permeable Roofing Underlay

Harcon VPU is a range of premium quality underlays with superb vapour permeability. They are specifically designed to allow the ready transfer of water vapour to reduce the risk of condensation in the roof void. Ariels range includes taped and untaped options.

For the complete Ariel range

Ariel Product Guide

Products

  • Use for Water, wind and condensation control

    92gsm Weight Untaped Harcon VPU

    Budget weight vapour permeable roofing underlay

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  • Use for Superb vapour permeability

    125gsm Weight Untaped Harcon VPU

    Standard weight vapour permeable roofing underlay

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  • Use for Very high water resistance

    230gsm Weight Untaped Harcon VPU

    Heavy weight vapour permeable roofing underlay

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  • Use for Ease of application and flexibility of joint position

    Single Taped Harcon VPU

    102gsm and 125gsm single taped Harcon VPU

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Why Harcon VPU

  • Taped and untaped options
  • 3 membrane weights available
  • Complies with BS5534:2014
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