Name | Permavent APEX | Permavent BLACK | Permavent DRY | Permavent ECO | Permavent GRAPHITE | Permavent MAX ALL ZONES | Permavent METAL | Permavent PRO VCL | Permavent RED |
Image | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
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 | |