Klober Permo Ecovent Breathable Membrane

£64.43 Incl. VAT
£53.69 Ex. VAT


Permo Ecovent is an economical permeable, three layer roofing membrane suitable for warm and cold pitched roofs. This product will allow the roof structure to breathe and become weatherproof by creating an airtight seal that will significantly reduce loss of energy.

  • A lightweight three layer vapour-permeable roofing underlay
  • BBA approved low resistance membrane
  • Also available with fitted self-adhesive strips to provide water tightness and strong protection against winds
  • UV Stable for 4 months


Area of application

  • Suitable for non ventilated cold and warm roofs.
  • All wind zones with taped headlap.
  • Wind zones 1-2 with battened headlap.


Technical Data

Light Grey
Material Description
UV/FR grade light grey non-woven polypropylene upper layer with a white breathable polypropylene membrane (centre) and white non-woven polypropylene (lower layer)
Roof type application
Cold and Warm Roof
BBA Standard Applicable - Cold roof
BBA Standard Applicable - Warm roof
Roof type for BBA standard
Cold and Warm Non-Ventilated Pitched Roof Systems
Water vapour transmission (SD value)
Water vapour resistance (MNs/g value)
0.15 MNs/g
Weight per m²
Water column
Wind zones BS5534 2014 Annex A
Tensile Strength Longitude
Tensile Strength Transverse
Nail Tear Strength Longitude
Nail tear strength Transverse
Fire rating
Installation temperature
-20°C to + 80°C
UV Stability
4 months

Deliveries are made on the basis the customer can accept the goods, or willingness to off load the goods, or having means of mechanical offload, this also applies to heavier items such as pallets etc. All deliveries are made ‘kerbside’ and often it can be at the discretion of the driver. A large majority of deliveries would be made on a large rigid tail-lift vehicle and off loaded via a pallet truck and only on to flat surfaces such as tarmac, concrete and pavers. If you do have restricted access, please contact us prior to placing your order. We will always try to accommodate your needs. If a delivery fails due to access, we reserve the right to make a re-delivery charge. All delivery charges are calculated when checking out. The delivery charges included are for the Mainland UK only and do not apply to the Scottish Highlands, or Isles off the Mainland. Additional charges may apply for deliveries that aren’t classed within the Mainland (this is classed by ourselves, suppliers and couriers) Please contact us on 01752 466151 or sales@roofingsuppliesuk.co.uk Due to the nature of our business model, this can mean your order will be sent via multiple deliveries. Whilst we will make every effort to deliver your goods within the stated/requested time frame, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules, so we would recommend the end user not to start/schedule any work until the goods arrive. Due to logistics of various couriers and suppliers we are unable to give times of deliveries. However, please call or email us on the day of the delivery and we will try to get an approximate time. Deliveries can take place from as earlier as 07:30 right up to 18:00 depending on the courier/haulier and taking into account local traffic etc.
You have 14 days from receiving your item(s) to return them should you wish to do so. Please contact us should you wish to arrange a refund/return. Any bespoke items such as cut to size lead, cut to size sheets and coping stones are all made to order and are non-refundable.

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