Phil L wrote:
Fash wrote:
Oh yes, of course there's a DPM, what do you think I am?

Fash


What you haven't calculated, and for which there are no tables that you can
use is that cold strikes upwards from the floor, and being in a cellar, the
walls too, you seem to have talked yourself into having no insulation
despite everyone here telling you that you'll need it....no one is going to
agree with you because I think everyone here knows that come December, this
basement is going to be uninhabitable at night time, and certainly most of
the daytime too if we get a cold spell but it's up to you in the long run

Which cold is this that STRIKES from the floor. Average temperature
1.7m below ground in the UK varies between 10C and 16C. So in the
coldest month which is January not December the situation is that you
have a room where the equivalent outside temperature is 10C and there
are no windchill factors (since it's not very windy underground), so in
fact there's very little difference in the temperature in the basement
all year round. Which has the great advantage that it stays cool in the
hottest days of summer and is NOT uninhabitable in the coldest days of
winter.

Anyway I'm not talking about no insulation, I'm talking about doing it
where practical so I will be putting some insulation behind the
dry-lining but not so much that I generate lots of condensation.

Reconsider the comparison to the rest of the house. Uninsulated
u-values for the basement are ~0.6 all round. Elsewhere given solid
stone walls the average wall u-value is 2 so it's there where I'm
pouring heat out of the house to try and warm the town (and of course
the planet). If you're right about the basement being uninhabitable in
winter (which of course you aren't) then I should probably abandon the
whole house to the rats since you clearly think it's not a viable
proposition!

This group is really good on practical issues but seems to fall over at
least a little (don't want to be too rude) when it comes to theoretical
analysis. Maybe I should try alt.climatechange or something like that,
maybe theres even an alt.thermodynamics group!

Fash