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How do we inspect cavity walls?

A small 12mm hole is drilled in the mortar joint (at the bottom of the ‘T’) and a borescope is inserted into the hole. The borescope is used to inspect the condition of the cavity and any existing cavity wall insulation. It is also used to inspect the cavity during and after the cavity clearance process to ensure the cavity is completely clear.

What a clear cavity should look like

The below images show exactly what a clear cavity wall should look like post extraction of cavity wall insulation and the cleaning of cavity walls using the CES System and methodology.

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