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Protect Party Wall Air Barrier

The Protect Party Wall Air Barrier (PWAB) has been specifically developed to overcome the problems of heat loss from party walls in timber frame construction. With the ongoing importance of increased airtightness in a structure to maximise energy efficiency, research has shown that party wall cavities can allow a significant amount of air movement in the cavity causing associated loss of energy. To address this, the cavity is required to be effectively sealed. PWAB’s unique airtight yet vapour permeable construction allows the membrane to achieve the requirements for air sealing, but still allow water vapour to escape.

Features & benefits

  • PWAB membrane is highly vapour permeable in excess of the minimum value required for wall membranes.
  • Completely water and airtight.
  • Lightweight and easy to install.
  • Available in a handy300mm x 25m roll suited for timber frame party walls.
  • PWAB Pack includes the Protect Reinforced Universal Tape to make the airtight seal on the roll edges around the party wall perimeter.
  • UKCA and CE marked.



Range Brochure


Product Brochure


Specification clause


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.

Important Notice

Please be vigilant of fraud/cyber crime. If you receive an email from our parent company Building Product Design Ltd, please check that the email address from the sender ends in '' and any phone number given is 0161 905 5700.

If you receive any emails ending in '' or '', these are NOT legitimate, and you should contact us as soon as possible at

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