Heavy-duty type HR impermeable roofing underlay, designed for all cold and warm pitched roofs.
The product can be used for all pitched roof constructions (tiled and slated), whether the insulation is at ceiling joist level or at rafter level.
Protect A1® is a heavy-duty type HR roofing underlay, designed for all cold and warm pitched roofs in conjunction with the provision of ventilation at eaves and ridge. The product can be used with a well-sealed ceiling and a separate air and vapour control layer on the warm side of the insulation or where the ceiling is not well-sealed as in a re-roofing application.
Features and benefits:
Dark grey on upper and lower surface. Printed with white product branding for ease of identification.
1.0 x 30 m
1.0 x 45 m
1.5 x 30 m
1.5 x 45 m
J42/110 Warm deck roof covering
J42/130 Cold deck roof covering
BS EN 13859-1, BS 5250, BS 5534, NHBC STANDARDS.
Unrestricted wind uplift resistance across the UK and Ireland - Zones 1-5 at 345 mm batten gauge to BS 5534.
BM TRADA Certified.
Embossed dark grey upper and lower surface. Printed with white product branding for ease of identification.
Glidevale Protect A1
To BS EN 12310-1 with mods, along roll.
To BS EN 12310-1 with mods, across roll.
287 N/50 mm.
Unaged tensile strength to BS EN 12311-1 with mods, along roll.
274 N/50 mm.
Unaged tensile strength to BS EN 12311-1 with mods, across roll.
285 N/50 mm.
Aged tensile strength to BS EN 12311-1 with mods, along roll.
238 N/50 mm.
Aged tensile strength to BS EN 12311-1 with mods, across roll.
Twin ply construction with a polymeric compositions, comprising of a polypropylene non-woven layer, coated on one surface with a continuous film of polypropylene / polyethylene blend
Resistance to water penetration to BS EN 1928
>2.0m hydrostatic head of water resistance
Wind uplift resistance (at 345 mm batten gauge) and 600 mm rafter centres - 1732Pa
Installed below the primary roof covering onto rafters or sarking board.
Roof space ventilation should be provided at both low and high level as with all impermeable (type HR) roofing underlays irrespective of insulation type or position. Please see our ventilation products on NBS or contact us for further information.
Contains Red List materials
Country of product manufacture