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.
Suitable for non ventilated cold and warm roofs.
All wind zones with taped headlap.
Wind zones 1-2 with battened headlap.
Permo Ecovent should be laid in accordance with the fitting instructions supplied with each roll and in accordance with the BBA certification and BS5535
An unsupported underlay should provide a drape between rafters sufficient enough to ensure that water will run away from the batten fixing nail penetrations allowing draining from the eaves gutter
Contact between the membrane and the roof covering should be avoided during and after installation