Glidevale Protect VP400 Plus

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 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:


  • Highly vapour-permeable, but completely airtight*.
  • Completely watertight with >7.0 m hydrostatic head of water resistance.
  • UV and heat resistant.
  • Tough and durable.
  • Has ‘unrestricted’ use for wind uplift in all exposure conditions in the UK and Ireland (zones 1-5 at 345 mm batten gauge), with a resistance to wind pressure of 1676Pa, when tested to Annex A of BS 5534.
  • BM TRADA independently certified.
  • Helps to avoid condensation risk in the roof space in accordance with BS 5250 and NHBC requirements.


*through the body of the material at 2500Pa pressure


General information

Finish

Embossed

Color

Grey

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

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

To BS EN 13859-1 / 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)

Resistance to water penetration to BS EN 1928

W1.

>7.0m hydrostatic head of water resistance


Material

Polypropylene.

Form

Non-woven, spun bonded.

Triple ply construction with waterproof and vapour permeable core, laminated and protected between two layers of non-woven spunbond material

Third-party certification

BM TRADA Certificate.

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

Glidevale Protect VP400 Plus

Tear strength

248 N.

To EN 12310-1 with mods along roll

294 N.

To EN 12310-1 with mods across roll.

TensileStrength

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

-40°C.

Wind resistance

Zones 1—5.

Wind uplift resistance (at 345 mm batten gauge) and 600 mm rafter centres - 1676Pa


Roll width

1 m.

1.5 m.

Roll length

50 m.

Environmental information

Contains Red List materials

No

Country of product manufacture

United Kingdom

Digital objects

Platform Compatible Version Certified to
Revit
-

1

1

Download now from NBS National BIM Library

Literature

Glidevale Protect VP400 PLUS LR

Glidevale Protect VP400 PLUS LR

Case studies

Millers Green Project - Heysham, Lancashire

Millers Green Project - Heysham, Lancashire

Bespoke Development - Royston, Hertfordshire

Bespoke Development - Royston, Hertfordshire

The Loft Holiday Home

The Loft Holiday Home

Third party certifications

BM Trada.

BM Trada.

BM Trada.

BM Trada.

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