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Fire Rated Membranes

Permavent supply the construction market with a range of class leading fire rated membranes for use in all types of modern construction. Our range of membranes offer exceptional fire properties that help prevent the spread of fire. All Permavent membranes are developed using the latest technologically advanced manufacturing processes and have been extensively and independently tested for their fire performance. Permavent's team of technical experts are always available to advise and support you on specifying the correct fire rated membrane for your next construction project.

  • Class B-s1, d0 fire rated
  • Superior water vapour permeability
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  • Air and vapour control layer
  • Class A2-s1, d0 fire rated
  • High purity aluminium reflective surface provides thermal benefit
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Fire Safe A Rated Membrane

  • Class A2-s1, d0 fire rated
  • Superior W1 head of water resistance
  • High UV resistance
  • Enhanced thermal performance
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A2-s1, d0 fire rated insulating breathable membrane

  • Excellent thermal, waterproof, soundproof & airtight properties
  • Super thin: only 13mm
  • Quick and easy to install
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New Products

The premium lead replacement

  • Suitable for all types of pitched roof products
  • Self sealing on overlaps
  • Elongation 40% lengthways and 15% widthways
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6m Ventilated dry ridge system

  • Quick and easy mortar free installation
  • Weatherproof seal of the roof ridge
  • Provides recommended 5mm continuous ventilation
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Quick and easy alignment of the hip ridge tiles

  • For use with both profile and flat tiles
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Provides continuous ventilation at eaves level

  • Designed with angle to stop section for position on fascia boards
  • Pre holed for ease of installation
  • Meets BS 5250 requirements
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220

grams

High Performance Membrane

  • High performance construction membranes
  • Vapour permeable
  • Integrated tapes, suitable in all UK wind zones
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Non-Breather Membranes

145

grams

Technologically Advanced Non-Breather Membrane

  • Technologically advanced 5th generation membrane
  • Exceeds BS 5534 wind loading requirements zones 1 to 5 - unrestricted use
  • Entirely air and watertight
  • Easy to install
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Tapes

Reflective single sided tape

  • High tack
  • Reflective surface
  • Ideal for walling applications
  • A2 fire rated
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Reflective single sided tape

  • High tack
  • Reflective surface
  • Ideal for walling applications
  • A2 fire rated
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High Tack airtight sealing tape

  • High Tack
  • Airtight
  • Strong & flexible
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High tack sealing tape

  • Sealing tape
  • High tack
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High tack reflective sealing tape

  • Sealing tape
  • High Tack
  • Reflective surface
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Double Sided Tape

  • High adhesion
  • Ideal for roofing applications
  • Multi material use
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Walling Membranes

Permavent offers the most competitive walling membranes in the UK. Featuring Safeshield XT Reflect, our A2-s1,d0 Fire Rated membrane that helps to protect the building from fire in the cavity with it's non-combustible materials. The reflective surface also provides thermal benefits. Also featuring the Envirotect range, a complete range of walling membranes, Air and vapour control layer and floor cassette designed to reduce the emissivity of the cavity and improve the energy efficiency of the building. Available with a high-purity aluminium coating which offers additional thermal benefits also.

  • Spunbound non-woven polypropylene
  • Unique air and vapour barrier
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  • Air and vapour control layer
  • Class A2-s1, d0 fire rated
  • High purity aluminium reflective surface provides thermal benefit
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  • Vapour open and airtight
  • Provides airtightness between ground floor and first floor intermediate floor zones
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  • Spunbond non-woven polypropylene
  • High water-vapour permeability
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  • High purity aluminium surface
  • Air and vapour tight layer
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  • High purity aluminium surface
  • Improves energy efficiency
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Fire Safe A Rated Membrane

  • Class A2-s1, d0 fire rated
  • Superior W1 head of water resistance
  • High UV resistance
  • Enhanced thermal performance
MORE

Easy Roof System

The Easy Roof system is a unique, patented low pitched roofing system that offers a solution to enable slates to be installed at shallow pitches as low as 12° and plain tiles as low as 17.5°.

Low pitch system for slates

  • Unique breathability and condensation control
  • Extends the life of the roof by keeping battens dry
  • Creates new areas for slate application
  • Pitch as low as 10° with fibre cement slates
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Waterproof dry verge for slates

  • Extends the life of the roof by keeping battens dry
  • Designed to look like a traditional verge
  • Maintenance free
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Waterproof dry verge for slates

  • Extends the life of the roof by keeping battens dry
  • Designed to look like a traditional verge
  • Meets requirements of the Scottish & refurbishments markets
  • Maintenance free
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Soaker system for slates

  • Unique soaker system for slates
  • Extends the life of the roof by keeping battens dry
  • Anti-theft design with no scrap value (no lead needed for installation)
  • Maintenance free
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Soaker system for slates

  • Unique soaker system for slates
  • Extends the life of the roof by keeping battens dry
  • Anti-theft design with no scrap value (no lead needed for installation)
  • Maintenance free
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Unique dry valley system for slates

  • Extends the life of the roof by keeping battens dry
  • Anti-theft design with no scrap value
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Low pitch system for plain tiles

  • Pitch as low as 17.5°
  • Creates new areas for plain tile application
  • Extends the life of the roof by keeping battens dry
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Vapour Permeable Membranes

Permavent offers the best selection of breather membranes in the UK. We stock an extensive range of membranes, suitable for various applications: all types of domestic and commercial roofing and walling applications. All of our membranes are manufactured using the latest technology. All membranes are fully UKCA certified and are rigorously tested to comply with European Harmonised standards. Our membranes are fully tested by BRE.

220

grams

High Performance Membrane

  • High performance construction membranes
  • Vapour permeable
  • Integrated tapes, suitable in all UK wind zones
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180

grams

Air Permeable Extra

  • Air and vapour permeable membrane
  • Integrated tape (untaped option available)
  • BBA Certified
  • No need for ventilation
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160

grams

Ultra Strong vapour permeable Membrane

  • Superior tensile strength
  • Superior tear resistance
  • For use on any types of roofing/walling applications
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150

grams

High Performance vapour permeable Membrane

  • Suitable for all wind zones regardless of fitting method
  • Universal
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130

grams

Highly durable vapour permeable membrane

  • Highly durable
  • Excellent tensile strength
  • Excellent tear resistance
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120

grams

High performance vapour permeable membrane

  • Highly breathable
  • Black on both sides
  • Value membrane
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90

grams

Lightweight vapour permeable membrane

  • Low cost membrane
  • Versatile
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440

grams

Condensation Control for Metal Roofing

  • For standing seam and fully supported metal roofing
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Diamond GRP

Diamond Glass Reinforced Polyester (GRP) is a composite material made from a polyester resin which is reinforced by chopped strand mat (CSM) glass fibres to form a GRP laminate. The Diamond GRP roofing system is constructed from a single-ply laminate applied in situ over 18 mm OSB3 deck. The roof is finished with GRP edge and a coat of Diamond GRP topcoat. When used for roofing, GRP provides a completely weatherproof system without any of the problems associated with traditional flat roofing materials.

Formulated resin for roofing applications

  • Forms the GRP laminate with Chopped Strand Mat (CSM)
  • Adjusted gel times for seasonal use down to 5°C
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Formulated topcoat for roofing applications

  • Forms the GRP laminate with Chopped Strand Mat (CSM)
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Formulated topcoat for roofing applications

  • Forms the GRP laminate with Chopped Strand Mat (CSM)
  • Fire retardant to BS476:3
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Complete weatherproof system

  • Contains materials for the coverage of 10m2 roof or 12m2 laminate.
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Air & Vapour Permeable Membranes

Permavent offers the most competitive air & vapour permeable membrane in the UK. Permavent APEX is a 3 layer breather membrane for use as a pitched roof underlay. Permanent APEX is a vapour and air permeable membrane providing unique condensation control which eliminates the need for low or high level ventilation. Permavent APEX also provides a secondary barrier to water ingress. All of our membranes are manufactured using the latest technology. All membranes are fully UKCA certified and are rigorously tested to comply with European Harmonised standards. Our membranes are fully tested by BRE.

180

grams

Air Permeable Extra

  • Air and vapour permeable membrane
  • Integrated tape (untaped option available)
  • BBA Certified
  • No need for ventilation
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Ancillaries

Permavent extensive range of roofing ancillaries; roofing tape, high performance adhesives - suitable for domestic and commercial roofing & walling applications.

The premium lead replacement

  • Suitable for all types of pitched roof products
  • Self sealing on overlaps
  • Elongation 40% lengthways and 15% widthways
MORE

6m Ventilated dry ridge system

  • Quick and easy mortar free installation
  • Weatherproof seal of the roof ridge
  • Provides recommended 5mm continuous ventilation
MORE

Suitable for when 300mm ridge tiles are used

  • Contains of ridge unions, clamping plates, screws, washers and outer clips
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Suitable for all types of ridge tiles

  • Compliant with BS 5250:2021
  • Compliant with BS 5534:2014+A2:2018
  • Compliant with BS 8612:2018
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Quick and easy alignment of the hip ridge tiles

  • For use with both profile and flat tiles
MORE

For use with small tile cuts

  • Quick and easy to install
  • The solution to the long-standing problem of fixing small cut tiles
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Provides continuous ventilation at eaves level

  • Designed with angle to stop section for position on fascia boards
  • Pre holed for ease of installation
  • Meets BS 5250 requirements
MORE

Underlay support tray

  • Prevents ponding behind the fascia
  • Drains water into the gutter, keeping it away from the underlay
  • Suitable for all roofs
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Lead Alternative

  • High performance adhesive
  • Lightweight
  • Versatile
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