Foundations

The foundations and the footings built.
The oversite you see here is made up from 150mm hardcore with a 40mm sand blinding followed by the 1200 gauge Damp Proof Membrane then the 100mm cellotex insulation seen here.  The joints are taped and inspected by the Council then a 150mm concrete cap poured over the top.

Extension

Once the oversite is concreted the extension can take form.
  There is a 100mm cavity with 100mm Thermolight blocks and 50mm cellotex cavity insulation held in place with wall ties and buttons. Then there is the 100mm outside brick course.  We are building on the back of the premises leaving the existing kitchen extension in situ and building over the top of the whole house to form the loft conversion without exposing the existing house to the weather.
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