Breather Membrane

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Name	Permavent APEX	Permavent BLACK	Permavent DRY	Permavent ECO	Permavent GRAPHITE	Permavent MAX ALL ZONES	Permavent METAL	Permavent PRO VCL	Permavent RED
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Description	Air Permeable Extra	High Performance Breather Membrane	Indestructible Breather Membrane	Lightweight Breather Membrane	High Performance Breather Membrane	High Performance Breather Membrane	Condensation Control for Metal Roofing	Vapour Control Layer	Ultra Strong Breather Membrane
Features	Air and Vapour permeable membrane Integrated Tape (untaped option available) No need for ventilation	Highly Breathable Black on both sides Value membrane	Condensation control system Ultra Strong	Low cost membrane Versatile	Highly durable Excellent tensile strength Excellent tear resistance	Suitable for all wind zones regardless of fitting method Universal	For standing seam and fully supported metal roofing	High Moisture Resistance Minimises interstitial condensation	Superior tensile strength Superior tear resistance For use on any types of roofing/walling applications
Weight, g/m2	180	120	230	90	130	150	440	82	160
Maximum tensile force (MD), N/50mm	358	240	670	200	310	350	320	140	360
Maximum tensile force (CD), N/50mm	304	160	520	110	220	240	200	110	250
Elongation at max. tensile force (MD), %	70	100	60	80	60	70	75	100	90
Elongation at max. tensile force (CD), %	72	100	80	60	60	70	100	120	110
Resistance to tearing MD (nail shank), N	214	130	300	90	170	140	210	100	250
Resistance to tearing CD (nail shank), N	218	170	360	125	240	230	270	5	340
Water tightness, class	W1	W1	W1	W1	W1	W1	W1		W1
Taped Lap	1-5	1-5	1-5	1-4	1-5	1-5			1-5
Water vapour transmission (sd),m			0.02	0.02	0.02	0.02	0.02	200	0.02
Batten Lap	1-3	1	1-3	1 -4 (250mm batten gauge)	1-3	1-5
Water vapour transmission (sd), m	0.01	0.02
Acoustic damping value, db							8
Reaction to fire, class								E
Reflectivity, %								95