Protect VP200 vapour permeable underlay
Protect VP200 is a medium weight, vapour permeable and completely airtight roof underlay with a vapour resistance exceeding the requirements of BS 5250, helping to avoid the risk of harmful condensation. It is suitable for use as a secondary line of defence against wind driven rain and snow across all pitched cold and warm roofs, including fully supported applications.
Glidevale Protect has created two handy visual technical guides to help you choose the correct ventilation strategy for your projects:


Features & Benefits
- Vapour permeable with a performance that exceeds the requirements of BS 5250.
- UV and heat resistant.
- Tough and durable.
- Easy to cut and handle.
- Suitable for wind zones 1-2 at 345mm batten gauge to cover a large area of England and Wales, in accordance with BS 5534.
- Resistance to wind pressure – 1022Pa, tested to BS 5534.
- Helps to avoid condensation risk in the roof space in accordance with BS 5250 and NHBC requirements.
- Produced in the UK.
- Forms part of a cold roof solution with both ventilated ridge and hip systems – Fulmetal UniRoll or RediRoll.
- Fully independently certified by BM TRADA.
- UKCA and CE marked.