"Keith2.0" wrote in message
...
On Sat, 22 Mar 2008 17:50:10 +0000, Rob wrote:

Doki wrote:
Can anyone tell me when cavity walls become common?

My house was built in 1928 with 11" cavities

Youd get value for money getting them insulated.

And very low heating bills. Make the house air tight and near an eco house.