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.
Cavity Extraction Specialists (NW) Ltd 779137 is an Appointed Representative of Improveasy Ltd., a company registered in England and Wales (Co. Reg. number 7807352). Registered Office: Manchester Business Park, 3000 Aviator Way, Manchester M22 5TG. The firm is authorised and regulated by the Financial Conduct Authority (FRN 708623). The firm is authorised as a Lender (limited only to green deal finance plans). It also acts as a Broker, not a Lender, and offers credit facilities from a panel/one lender. The credit is subject to application and status.