Underlays

A range of vapour-permeable underlays, independently tested and suitable for all wind uplift zones in the UK in accordance with BS 5534.
Braas - Taunus Pfanne - Underlay

High-quality protection. Withstands the strongest winds.

The BMI Redland underlay system provides a heavy-duty wind-tight system for your roof. Our Spirtech and Divoroll vapour-permeable underlays integrate smart features, such as integral glue-strips, superior tear-resistance and a reinforced grid, so that installation is quick and easy.

Independently tested by the BRE, all our underlays exceed BS 5534 requirements and are suitable for all wind zones throughout the country.



Main features

  • Fully compliant with BS 5534 and BBA Certified

  • Suitable for all wind zones throughout the country (1-5)

  • Strong and durable with reinforced grid

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