On 11/01/2021 13:50, Jim Stewart ... wrote:
On 11/01/2021 10:20, nightjar wrote:
On 10/01/2021 20:16, David wrote:
Just a thought about the row of 1930s houses here (and others seen in
the
past).

They seem to be generally built with air vent bricks near the ceiling in
upstairs bedrooms

I assume that this was for ventilation because most rooms had coal
fires.

Again I assume that most of these have been blocked up over the years.
Certainly no trace of any inside our house.
I assume previous owners blocked them up....

My 1930s house has quite a number of air bricks around it. They
ventilate the cavity wall, rather than the rooms.

All this got me thinking about ventilation.
With double glazing and draught proofing round doors and blocking up (or
not installing) fireplaces modern houses seem to have minimal
ventilation...

Which is why the building regs now require windows to have trickle
vents in new builds and extensions.


been like that since at least the early 70's in Scotland
anyway...adjustable 3500 mm SQ trickle vent to the outside in a window
or an airbrick in the external wall....or a permanent vent above the
door into the hall....all min 2m above floor level...Englandshire bound
to be the same....

No (to the latter).