BBA Agrément Certificate
A thermally bonded tri-laminate of polypropylene.
For use as a separating and water flow reducing layer (WFRL) in inverted and green roofs.
For full application details please refer to BBA certificate 17/5454.
A high performance, thermally bonded tri-laminate of polypropylene; spunbonded (outer layers) and microporous (inner layer).
Features and benefits:
100 x 1.5 m
J41/10 Reinforced bitumen membrane warm deck roof covering
J42/385 Filter layer
Separating and water flow reducing layer (WFRL) in low moisture impact inverted and green roofs.
To BS EN 13859; to EN 20811.
Tensile strength (minimum)
MD: 185 N/50 mm; CD: 130 N/50 mm.
To EN 12311-1.
20 cm folded MD/ CD, to prEN 13859: 65 N/20cm.
55 N/200 mm.
To EN 12310-1.
Water vapour resistance (minimum)
Water resistance to EN 20811: 1.5 m of water head.
Water vapour transmission (23ºC/ 85% humidity), Lyssy: 1200 g/m².d.
To prEN 1397, up to four months.
BBA Certificate 17/5454.
Black topside with grey underside.
Roll length (minimum)
© 2022 NBS Enterprises Ltd. All rights reserved.