Today the builders started on the internal block wall and the cavity insulation. Today I learned that the inner and outer blocks are different, inner having better thermal properties – they contain more air. And that insulation is now 10cm thick (Earthwool insulation), but was only 3cm thick a “few” years ago when the builder started doing extensions … you can learn a lot chatting to the builders in the morning!

Now that the internal walls are in place in parts I could measure the rooms, and they came pretty much to 280cm and 380cm – exactly as I had planned – although, once plasterboarded, they will be a little smaller.

Kitchen window

Kitchen diner French doors

Living room side window

Supporting wall – the rest will be stud wall I think

Cavity insulation

Extension from the back

Brick wall starter with old wall exposed

How deep is the cavity insulation? It’s 10cm deep Earthwool – also note the two different types of block 

More old brick wall exposed

The kitchen drain and soil vent

Pair of French doors at the back of the extension