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.
• UKCA and CE marked.

Glidevale Protect has created two handy visual guides to help you choose the correct ventilation strategy for your projects. Click below to view…