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Cromar Vent 3 Classic Breather Membrane 1m x 50m 115gsm

Advanced technology protects from the elements

Award winning quality and finish

£35.50 ex. VAT£42.60 inc. VAT

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Lead Time: Approx. 1 working day


Cromar Vent 3 Classic Breather Membrane 1 x 50m - 115gsm

A breathable roof underlay for cold and warm roof applications which give major benefits over traditional roof underlays.

Available in a 1 x 50m size, this membrane is made from two high tensile spun bonded polypropylene layers. This triple layer breather membrane is thermally calendared to a micro porous polypropylene film.


  • BBA certified
  • Cold & Warm roof application
  • 3 layer spun-bonded membrane
  • Clean & easy to use
  • Lightweight & flexible
  • Excellent tensile strength
  • Light grey surface prohibits glare
  • UV stable for up to 3 months
  • Requires no ventilation

  • For technical data, click here.

  • If you are not satisfied with any LB Supplies products you can return them within 14 days of purchase as long as they are unused and in their original condition and packaging. If you purchased from our website and would like to return your products, please download the LB Supplies returns form below and include it with the return. Once we′ve received your unused products, we′ll refund you the amount of the original purchase, excluding any delivery costs, using your initial method of payment. For all returns and any exchanges, you are required to cover the cost of the return delivery to our offices.  For your own security, we recommend using a recorded delivery service when sending goods to us. 

    Click here for a product returns form.