Glidevale Protect VP400
Application

Suitable for use across all pitched cold and warm roofs to provide a secondary line of defence against wind-driven rain and snow.

Description

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:

  • Highly vapour-permeable, but completely airtight.
  • Completely watertight with >7.0 m water resistance.
  • UV and heat resistant.
  • Tough and durable.
  • Can be used as a temporary roof covering.
  • Has ‘unrestricted’ use for wind uplift in all exposure conditions in the UK and Ireland (BS 5534, zones 1-5 at 345 mm batten gauge).
  • BMTRADA independently certified.
  • Helps to avoid condensation risk in the roof space in accordance with BS 5250 and NHBC requirements.

General information

Finish

Embossed

Color

Grey

Embossed grey upper surface with printed with product branding for ease of identification.

Material

Polypropylene

Shape

Roll

Size

1.0 x 50 m

1.5 x 50 m

Uniclass 2015

Pr_25_57_10_94 Vapour permeable sheetsPrimary

CAWS

J42/110 Warm deck roof covering

J42/130 Cold deck roof covering

Specification data - Vapour permeable sheets Enhanced data

Standard

BS 5250, BS 5534, NHBC STANDARDS.

Performance characteristics

Water vapour resistance to BS EN ISO 12572; 0.08 MNs/g and 0.016 Sd.

Class (minimum)

W1.

>7.0m hydrostatic head resistance.

Material

Polypropylene.

Form

Non-woven, spun bonded.

Third-party certification

BM TRADA.

Weight (minimum)

170 g/m².

Thickness (minimum)

0.78 mm.

Reflective face

None.

Execution

Installed below the primary roof covering onto rafters or sarking board, can also be used as a breather membrane on walls.

Product Reference

VP400

Tear strength

248 N.

To EN 12310-1 along roll.

294 N.

To EN 12310-1 across roll.

TensileStrength

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

-40°C.

Wind resistance

Zones 1—5.

Wind uplift resistance . At 345 mm batten gauge and 600 mm rafter centres.

Environmental information

Contains Red List materials

No

Country of product manufacture

United Kingdom

Recycled content

Recycled materials will vary.

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Third party certifications
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