Products

Roof types

PERMAVENT MAX

Product description

PERMAVENT-MAX breather membrane is a three-layer product with increased GSM (grams per square metre) and strength parameters. Its high vapour permeability (1343g/m²/24h) makes it ideal for building industry as a membrane for insulated pitched roofs of all kinds, both fully boarded and conventional ones. It is also an ideal tough weather resistant housewrap.

Due to high performing functional film (polypropylene) and increased strength parameters in the production process, the product has an upgraded degree of watertightness ( well over 6000mm H₂O), which means that it is highly resistant to water and moisture while providing the opportunity to carry out assembly work in any atmospheric condition. Special UV stabilising agents allow the product to have an increased resistance to UV rays (even up to 4 months !!), meaning that the final covering of the roof can be delayed to a later stage.

PERMAVENT-MAX can be used on cold vented, non–vented, warm deck and hybrid roofs (habitable roof space). The name speaks for itself. If you need maximum performance Permavent-MAX is for you! Use of the latest technical inventions and very efficient technology made it possible to offer a product of superb quality at an affordable and attractive price. There are special imprints on the product that facilitate overlapping, and the original label and the Permavent logo guarantee the stability of the product's quality and its genuineness. Due to Permavent-MAX membrane the life span of your attic and the roofing system will be significantly increased, which guarantees that your house will have dry and healthy climate. Overlaps of Permavent membrane should be joined with special Permavent-Tape.

Note!!! Permavent-MAX is also used as a housewrap in skeletal construction and under siding.

Physical properties

Surface mass density	140 g/m²
Vapour permeability	1373 g/m²/24hr
Vapour resistance	0.15 MNSgm^-1
Thickness	0.7 mm
Resistance to UV	3 months
Resistance to tear
— longitudinal:	>310 N/5 cm
— transversal:	>199 N/5 cm
Temperature range	-40 °C +95 °C
Resistance at nailing point	>193 N
Watertightness	>6000 mm H₂O !!!
Roll size: 1,5 & 1 m x 50 m	50m² & 75 m²
Number of rolls per pallet	30

* Other roll sizes are available upon request


	High Vapour Permeability PERMAVENT'S high tech design will protect your home from damaging effects of condensation
	Absolute watertightness PERMAVENT SYSTEM ensures a dry home during prolonged construction or roof damage
	UV Protected PERMAVENT shows no degradation under sunlight for 3 month operation efficiently between 95 °C max<45 °C min
	Light weight PERMAVENT is easy to use, handle and store. Available in rolls of 1m x 50m (5.8 kg) and 1.5m x 50m (8.6 kg)