Permo Ecovent is Klober's economy roof underlay solution for pitched roofs. The three-layer, vapour-permeable roof membrane allows the roof structure to breathe and is available with or without self-adhesive tape. The integral self-adhesive tape creates a strong and durable airtight seal to reduce energy loss. Permo Ecovent is BBA approved for non-ventilated cold and warm roofs.
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