Case Study: CFB65 Lowfield Timber July 2020



Trialing a brand new Tenmat product, the Cavity Fire Barrier 65mm, on a housing development.


Lowfield Timber Frame, a timber frame manufacturer.


Timber Frame House Building
New Calder, Semi-detached, 3 bedroom
Plot 329 & 300
First trial done on Lowfield timer frame
All other houses will use traditional Cavity Socks


Cavity Fire Barrier 65mm


13th July – ongoing


West Midlands, UK


Trialing new product; CFB65

Project Leaders

Grant Barlow –Specification Sales Manager
Mark Davies – Business Unit Manager

How Tenmat are involved

Tenmat became aware that the 50mm cavity in architects drawings did not account for building tolerances. Tenmat has worked closly with house builders and timber frame manufacturers
providing a cost effective and high performance solution. The Tenmat team worked on developing a new product, putting the product through rigorous third paty testing, and came up with an innovative solution to replace traditional cavity socks.

Testing Needed

The CFB65 was tested at Warrington Exova fire test centre. The product exceeded standard test regulations.


The CFB65 was developed to overcome problems that traditional cavity trays and socks can cause. Our solution is a ventilated system simply stapled onto the timber.
• Fills 65mm cavities; taking up any inconsistencies frequently found in a 50mm cavities
• Replaces cavity socks and weep holes
• Quicker and easier to install by one tradesman

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