js.b1 wrote:
On Nov 25, 3:56 pm, "Dave Liquorice"
wrote:
that's not going to be what this place needs, ie rip out all the
uninsulated dry lining, replace with 50 to 100mm celetox or similar,

Actually 50mm Celotex does very nicely indeed if you look at the
calcs.
A house insulated with 50mm Celotex on the inside needs only a f@rt
lighting every few hours to keep warm.


That depends entirely on how big the house is, and the boiler size,.

I am fully specced to regs and I still need 10KW continuous at -5C and a
15mph wind to mantain 17C.

..


I find it really stupid that the houses with any solid walls (not just
entirely solid wall) are not getting internal insulation grants. I
have a suspicion it is so they can be classified as HTH housing and
thus cheap prey someday at the street level for Property Developers. I
guess that "will create new jobs too" as well as socioeconomic
cleansing...

I am not hat paranoid or cynical, but in principle I agree.

Solid walled houses are THE prime candidates for upgrades. The big
problem is the building regs. You have to do it to full spec or not at all.

If they relaxed that to 'at least twice as good as it was for a refurb'
then instead on 100mm insulation, 10-20mm of celotex would work.