A type LR pitched roofing underlay with high vapour permeability, for use in warm and cold roof constructions.
Suitable for use across all pitched cold and warm roofs to provide a secondary line of defence against wind-driven rain and snow.
Protect VP400 PLUS LR is a highly vapour permeable roof underlay. It offers low vapour resistance, helping to avoid the risk of harmful condensation, whilst remaining completely airtight.
Features and benefits:
*through the body of the material at 2500Pa pressure
Embossed grey upper surface printed with blue product branding for ease of identification. Black lower surface.
1.0 x 50 m
1.5 x 50 m
J42/110 Warm deck roof covering
J42/130 Cold deck roof covering
To BS EN 13859-1 / BS 5250 / BS 5534 / NHBC STANDARDS/
Water vapour resistance to BS EN ISO 12572; 0.08 MNs/g and 0.016 Sd.
Resistance to water penetration to BS EN 1928
>7.0m hydrostatic head of water resistance
Non-woven, spun bonded.
Triple ply construction with waterproof and vapour permeable core, laminated and protected between two layers of non-woven spunbond material
BM TRADA Certificate.
Installed below the primary roof covering onto rafters or sarking board, can also be used as a breather membrane on walls.
Glidevale Protect VP400 Plus
To EN 12310-1 with mods along roll
To EN 12310-1 with mods across roll.
325 N/50 mm.
Unaged tensile strength to BS EN 12311-1 with mods, along roll.
305 N/50 mm.
Unaged tensile strength to BS EN 12311-1 with mods, across roll.
290 N/50 mm.
Aged tensile strength to BS EN 12311-1 with mods, along roll.
295 N/ 50 mm.
Aged tensile strength to BS EN 12311-1 with mods, across roll.
Flexibility at low temperature
Wind uplift resistance (at 345 mm batten gauge) and 600 mm rafter centres - 1676Pa
Contains Red List materials
Country of product manufacture
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