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Permavent APeX Air Permeable Extra Breathable Felt 1 x 50m

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Permavent APeX Air Permeable Extra Breathable Felt 1 x 50m

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Excl. Tax: £99.75 Incl. Tax: £119.70
APeX (Air Permeable eXtra) complies with NHBC requirements for cold roof constructions without the need for high level ventilation.

Details

Permavent APeX Air Permable Extra Breathable Felt 1 x 50m


 


APeX (Air Permeable eXtra) complies with NHBC requirements for cold roof constructions without the need for high level ventilation.


 


NOW IN STOCK FOR NEXT DAY DELIVERY!!!!


 


Air Permeable/breather membrane for use on all types of domestic and commercial roofing and walling applications, including: 
cold non vented 
traditional hybrid 
cold vented 
Scottish and fully boarded applications


Suitable for use without the need for high level ventilation.


Suitable for use in all applications* (Wind Zones in the UK for underlays used for specific applications as described in BS 5534).


APeX (Air Permeable eXtra) complies with NHBC requirements for cold roof constructions without the need for high level ventilation.


 


DESCRIPTION


Following years of development, Permavent have further increased the bound aries of breather membrane technology to produce a super high performance Vapour Permeable Underlay (VPU) that complements our impressive range a high performance Roof Tile Underlays (RTU's).


The unique induction bonding process allows for stepped changes that increase the flexibility of the boundaries when establishing the final performance of the membrane. We have fine-tuned this technology to produce a breather membrane with Air Permeable qualities that are ideally suited to the construction methods here in the UK.


Permavent APeX was rigorously tested by the BRE where the high performance properties not only achieved superb Air Permeability results but it also passed the BS 5534 annex A test for wind uplift in all regions throughout the UK when installed correctly.


Permavent APeX not only allows vapour to be released from the roof space but because a controlled amount of air is allowed to pass through it there is no need to use additional high level ventilation in many new build applications.


Permavent APeX complies with NHBC requirements for cold roof constructions without the need for high level ventilation under the NHBC warranty.


 


PHYSICAL PROPERTIES







































Weight, g/m2 180
Water tightness, class w1
Water vapour transmission (sd),m 0.01
Maximum tensile force (MD), N/50mm 320
Maximum tensile force (CD), N/50mm 260
Elongation at max. tensile force (MD), % 55
Elongation at max. tensile force (CD), % 70
Resistance to tearing MD (nail shank), N 170
Resistance to tearing CD (nail shank), N 200
Resistance to penetration of air, m3/(m2h50Pa) 52.27
Roll size:

1m x 50m
9.2kg)


60 per pallet

Number of rolls per pallet 60

 


 For Technical info click here!

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