On 20/06/2019 14:43, Roland Perry wrote:
In message , at 23:34:35 on
Wed, 19 Jun 2019, Roger Hayter remarked:
Roland Perry wrote:

And because the Mexicans aren't paying for it, I'm looking for something
adequate (and which meets any regs) but not over-engineered.

It'll be an outside wall, no windows, and from the outside in:

One thickness of bricks

Do you mean one brick (ie the metrified version of 9")?Â*Â* Or half a
brick (do.) 41/2"?

I mean like half of a cavity wall.

Are you interested in meeting building regulation standards?

"which meets any regs" which was shorthand for "which meets any
appropriate regs" which is shorthand again for "meets all appropriate
regs".

If you mean a half brick, I should recommend a maximum height of about
900mm without buttresses.

From a structural point of view, single-brick garages don't seen to
fall down very often. But some modest buttresses would be OK as long as
they don't prejudice the insulation value. Any vertical loading applied
inside would be carried by the studwork, so we are mainly interested in
the brick wall not topping over.

If it is just a single run of wall then you will need to buttress
it. If there is a right-angle joint then triangualtion will
provide the necessary strength.

If this is going to be habitable, then building control will
want to see plans with calculations for structure and thermal
performance anyway.