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Cromar Vent 3 Light Breathable Membrane - 1m x 50m

Home Shop Roofing Felt Breather Membranes Cromar Vent 3 Light Breathable Membrane – 1m x 50m
Product SKU: VENT3LIGHT1MX50M
£29.99incl VAT.
£24.99excl VAT.
In Stock

The Cromar Vent 3 Light Breathable Membrane is a high-performance breather membrane crafted from high tensile spun bonded polypropylene layers around a micro-porous polypropylene film.

  • 95 GSM
  • Triple layer membrane
  • Clean and easy to use
  • Excellent moisture vapour permeability
  • Superior tear and tensile strength
  • Waterproof membrane
  • Long term durability
  • UV Stable (3 Months exposure)
  • Suitable for warm and cold roof applications
Frequently Bought Together:
This image displays the front of the product which is a Easy-Trim Over Fascia Vent
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£8.99 Incl VAT £7.49 Excl VAT
ERidge Dry Fix Ridge System Black – 6m Kit
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£28.99 Incl VAT £24.16 Excl VAT
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£1.29 Incl VAT £1.08 Excl VAT
Quantity Price
1 - 11 £29.99
12 - 55 £27.00
56+ £25.00
Total Price
£29.99 Incl VAT
£24.99 Excl VAT

The Vent 3 Light Breathable Membrane by Cromar is an exceptional, high-performance breather membrane that works fantastically as a second layer of protection for your roof. It's forged for application in a fully supported or unsupported slated, tiled or metal roof system. Compared to traditional membranes, this product is unmatched. With its excellent moisture vapour permeability alongside outstanding water resistance, this product has been tested and proven to excel.

What happens if water penetrates my tiles on the roof?

This is why it's essential to have a Vent 3 due to its ability to resist water. With the correct installation, any water that does pass the first layer of protection on the roof will hit the membrane, redirecting it into the gutter safely and ensuring no leakage.

How does this product resist water but allow water vapour through?

The outer layer of this product is crafted as a fully functional and exceptional waterproofer, whilst the middle layer is a high-quality, breathable waterproof membrane, allowing water vapour inside the roof space to escape. The final inside layer protects the membrane from abrasion and damage and enhances the overall integrity of the membrane.

Additional information

Tensile Strength (EN12311‐1)

MD 176N/50mm
TD 109N/50mm

Elongation (EN12311‐1)

MD 63%
TD 70%

Nail Tear (EN12310‐1)

MD 92N
TD 126N

Hydrostatic Head (BS EN 20811)

310cm

Reaction to Fire (EN 13501‐1)

Class E

Resistance to streaming water (MOAT69:4.2.2

Pass

Resistance to water penetration (EN13859‐1)

Class W1

Water Vapour Resistance (Sd ) (m)

0.22

UV Resistance

3 months

Technical Data Sheet

Product Information

Tensile Strength (EN12311‐1)

MD 176N/50mm
TD 109N/50mm

Elongation (EN12311‐1)

MD 63%
TD 70%

Nail Tear (EN12310‐1)

MD 92N
TD 126N

Hydrostatic Head (BS EN 20811)

310cm

Reaction to Fire (EN 13501‐1)

Class E

Resistance to streaming water (MOAT69:4.2.2

Pass

Resistance to water penetration (EN13859‐1)

Class W1

Water Vapour Resistance (Sd ) (m)

0.22

UV Resistance

3 months

Technical Data Sheet

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