A low resistance vapour permeable roof tile and slate underlay for use in cold and warm roofs.
A low resistance vapour permeable roof tile and slate underlay for use in cold and warm roofs.
Grey
Grey
Other
Other
Composite
Composite
Rectangle
Rectangle
50000 mm
50000 mm
1000 mm, 1500 mm
1000 mm, 1500 mm
Specification
To BS EN 13859-1.
To BS EN 13859-1.
British Board of Agrément (BBA) certificate.
British Board of Agrément (BBA) certificate.
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0.02 (+0.020/-0.005) sd(m).
0.02 (+0.020/-0.005) sd(m).
Class E.
Class E.
Longitudinal/ transverse (before ageing): 350 (±40)/ 210 (±40) N/50 mm.
Longitudinal/ transverse (after ageing): 320 (±40)/ 180 (±20) N/50 mm.
Longitudinal/ transverse (before ageing): 350 (±40)/ 210 (±40) N/50 mm.
Longitudinal/ transverse (after ageing): 320 (±40)/ 180 (±20) N/50 mm.
W1.
W1.
Two layer non-woven spun-bonded polypropylene, with a calcium microporous film.
Two layer non-woven spun-bonded polypropylene, with a calcium microporous film.
Spun-bonded.
Spun-bonded.
150 gsm.
150 gsm.
None.
None.
Additional properties
1000 mm., 1500 mm.
1000 mm., 1500 mm.
0.04 m³/m² x h x 50 Pa.
0.04 m³/m² x h x 50 Pa.
Longitudinal/ transverse (before ageing): 60 (±15)/ 75 (±15)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Longitudinal/ transverse (before ageing): 60 (±15)/ 75 (±15)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Integral tape to tape system.
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Sustainability data
No
No
Composite
Composite
Recyclable after service life
Recyclable after service life
0 %
0 %