How do I select a cavity closer?
Last updated September 15th, 2022
There are three key considerations in the process to select a cavity closer:
1. Has the building been built? If it hasn’t you want to fit a 1st fit product, if the windows are just being replaced you want to select a 2nd fix cavity closer.
2. How large is the cavity? Simple, if the cavity width (the distance between the brick and block) is 70mm then you require a 70mm wide cavity closer.
3. Do you need to comply with Building Regulations C, B and L? If you do then select an insulated fire rated cavity closer with a minimum thermal resistance path of 0.45m2k/W, this value is also known as the R Value. All cavity closer manufacturers will be able to provide you with this information.
If you want to learn more about cavity closers, Dacatie have a RIBA approved CPD, for more information please visit the RIBA website by clicking here.
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