U values for older houses ?

[Paul(Retired)]

U values for older houses ?

In a previous thread a discussion formed over the merits of new houses over old, one obvious advantage being the greater thermal efficiency of new houses.

The current building regs for the U value of external walls is 0.35. My 1950's "ventilated brick cavity brick" is apprently 1.9.

Does anybody know what the likely U values would be for older houses e.g. victorian houses with solid brick/stone walls, cottages with 2 foot thick stone walls etc.

TIA

Paul

[Rob]

According to Myson heat loss calculator, a 200mm solid brick wall is

1.8, 18inch solid stone is 2.5.

[Paul(Retired)]

Thanks both for the info.

Looks like there ain't no such thing as a cosy cottage then !.

Paul

[fred]

In article , Paul(Retired) writes

Once you get it up to temp :-)

I'm happy with cosiness inside my 18" walls but I always have the heating on just a bit so that I never have to heat it up from cold.

[The Natural Philosopher]

Check out cob then. 2 ft thick mud, straw and cow dung. Excellent U values :)