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Protect Cavit-E Clip

The Cavit-E cavity clip has been designed specifically for use with Protect VC Foil Ultra to enhance thermal performance of timber frame walls and warm roofs. When used with Protect VC Foil Ultra it improves the thermal performance without increasing the stud/rafter size or the overall thickness of the construction.

It has the added benefit of creating a cavity for services on the warm side of the insulation without compromising the integrity of the vapour control layer. The Cavit-E clip is a sprung plastic section which is fixed over studs or rafters, holding the membrane in place and creating an unventilated airspace. Fitting a range of stud or rafter widths, the Cavit-E clip is supplied in 2.2m lengths and can be cut on-site into smaller lengths.

Features & benefits

  • Enhanced thermal performance (U-value).
  • Maximises internal floor areas.
  • Reduced installation costs.
  • Can be used with all insulation types but ideally suited for flexible fibrous and blown insulation.
  • Quick and easy to install.
  • Eliminates the need for stapling the vapour control layer.
  • Maintains the integrity of the vapour control layer and creates a low emissivity cavity and service void.



Range Brochure


Product Brochure


Fixing instruction


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

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