Skip to content

Protect VP300 vapour permeable underlay

Protect VP300 is a medium weight vapour permeable roof underlay with a vapour resistance better than that required by BS 5250 to help reduce the risk of harmful condensation in the roofspace. With a strength greater than many other underlays in its class, Protect VP300 is suitable as a secondary line of defence against wind driven rain and snow for all pitched roofs, including fully supported applications.

Features & benefits

  • Easy to cut and lightweight to handle.
  • Completely water and airtight with >2.0m head of water resistance.
  • UV stable and heat resistant.
  • Good all round performance for its weight and one of the best in its class.
  • Suitable for use in Zones 1-3 at 345mm batten gauge, without the need for additional sealing tapes.
  • Can be used as temporary roof covering.
  • Resistance to wind pressure – 1198Pa, tested to BS 5534.
  • Fully independently certified by BM TRADA.

Downloads

Brochures

Range Brochure

Download

Product Brochure

Download

Specification clause

Download

Certifications

Download

Schedules

Download

BIM Objects

BIM platform member?

Click here to login to your Bimstore account

Click here to login to your NBS account

BIM Store

NBS Specifications

Have a question?

For any questions or queries about our product ranges and the technical support services we can offer, please contact us using the form below.

Glidevale Protect is a division of Building Product Design Ltd.

Other subsidiaries include ventilation systems specialist Passivent and Kingfisher Louvres, manufacturer of aluminium louvres systems.

Site by Harris