On 2007-10-17 09:33:18 +0100, Eeyore
said:



Andy Hall wrote:

Eeyore said:

I have no problem seeing why at least some expectation of reasonable
performance
shouldn't be made of older ones, especially if accompanied by grants to
help..

Of limited value. On older properties with 230mm solid walls,

A minority of properties.

There is still a very substantial stock in this category.




a very large proportion of total heat produced goes out through the walls.
There is very little that can reasonably be done about that.

It can certainly be inproved, not least with new wall plasters believe it or
not. Dry lining can make serious improvements too.

Graham

The improvement is not substantial until one starts putting in a
reasonable thickness of insulation. This can be ameliorated to some
extent with materials such as Kingspan, but still involve issues such
as reduction in room size, how to handle window and door reveals
without making a pig's ear and redecorating etc. This is not trivial
for most people.