A highly vapour permeable roof underlay.
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 PLUSLR 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:
Embossed grey upper surface with printed with product branding for ease of identification.
1.0 x 50 m
1.5 x 50 m
J42/110 Warm deck roof covering
J42/130 Cold deck roof covering
BS 5250, BS 5534, NHBC STANDARDS.
Water vapour resistance to BS EN ISO 12572; 0.08 MNs/g and 0.016 Sd.
>7.0m hydrostatic head resistance.
Non-woven, spun bonded.
Installed below the primary roof covering onto rafters or sarking board, can also be used as a breather membrane on walls.
To EN 12310-1 along roll.
To EN 12310-1 across roll.
325 N/50 mm.
Unaged tensile strength to EN 12311 with mods, along roll.
305 N/50 mm.
Unaged tensile strength to EN 12311 with mods, across roll.
290 N/50 mm.
Aged tensile strength to EN 12311 with mods, along roll.
295 N/ 50 mm.
Aged tensile strength to EN 12311 with mods, across roll.
Flexibility at low temperature
Wind uplift resistance . At 345 mm batten gauge and 600 mm rafter centres.
Contains Red List materials
Country of product manufacture
Recycled materials will vary.
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