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Glidevale Protect VP400 Plus - Breathable Roofing Underlay

Verified by manufacturer 2 months ago

1000 mm-wide rolls

BPD Building Product Design Ltd Variant:
Third party certifications:
  • BM Trada

    BM Trada

    Certificate type

A type LR pitched roofing underlay with high vapour permeability, for use in warm and cold roof constructions.

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+44 (0)161 905 5700 Website

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 1676 Pa, 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 2500 Pa pressure.

General information

Color

Grey

Guidance for specification option:

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

Finish

Embossed

Material

Polypropylene

Shape

Rectangle

Guidance for specification option:

Supplied as a Roll

Length

50000 mm

Width

1000 mm

1500 mm

Uniclass

Pr_25_57_10_94 Vapour-permeable sheetsPrimary

CAWS

H67/110 Metal roof tiling

H67/5 Metal roof tiling

H65/135 Ceramic slate roof tiling

H65/125 Reconstituted slate roof tiling

H65/115 Concrete roof tiling

H65/105 Clay roof tiling

H65/10 Reconstituted slate roof tiling

H65/5 Roof tiling

H64/110 Wood shingle/ shake roofing

H64/10 Wood shingle/ shake roofing

H62/145 Roof slating

H62/125 Roof slating

H62/105 Roof slating

H62/3 Roof slating

H61/105 Roof slating

H61/5 Roof slating

H60/120 Concrete roof tiling

H60/105 Clay roof tiling

H60/3 Roof tiling

Product range

Breathable Underlays

Specification data - Vapour-permeable sheets

Standard

To BS EN 13859-1, BS 5250, BS 5534; NHBC STANDARDS.

Third-party certification

BM TRADA Certificate.

Performance criteria

-

Water vapour properties

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

Class (minimum)

W1.

Guidance for specification option:

>7.0m hydrostatic head of water resistance


Manufacturer guidance

Resistance to water penetration to BS EN 1928

Material

Polypropylene.

Form

Non-woven, spun bonded.

Guidance for specification option:

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

Weight (minimum)

170 g/m².

Guidance for specification option:

9.68 kg per roll (1000 mm wide) or 14.81 kg per roll (1500 mm wide).

Thickness (minimum)

0.78 mm.

Reflective face

None.

Tear strength

Manufacturer's standard.

Guidance for specification option:

  • 248 N: To EN 12310-1 with mods along roll.
  • 294 N: To EN 12310-1 with mods across roll.

TensileStrength

Manufacturer's standard.

Guidance for specification option:

  • 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.

Guidance for specification option:

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


Roll width

1000 mm.

Guidance for specification option:

50 m² per roll.

Roll length

50 m.

Sustainability data

Contains Red List materials

No

Country of product manufacture

United Kingdom

Material

Polypropylene

BIM objects

Platform Compatible Version
Revit
-

1

Third party certifications

BM Trada

BM Trada

Protect VP400 Plus LR BM TRADA Certificate No CPS-005

BM Trada

BM Trada

Protect VP400 Plus LR BM TRADA Schedule No CPS-005

Literature

Glidevale Protect VP400 PLUS LR

Glidevale Protect VP400 PLUS LR

BS 5250:2021 Management of moisture in buildings

BS 5250:2021 Management of moisture in buildings

Building Healthy Solutions for Offsite

Building Healthy Solutions for Offsite

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

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