Two examples of how to do it here

https://www.wtknowles.co.uk/wp-conte...er-Box-IOM.pdf

https://www.northerngasnetworks.co.u...n-Guidance.pdf

Well that OK if you are building the wall when installing the box.

What if the wall is already there?

Oversized cut with a 9" angle grinder, trim the corner bits off and a
sloppy mix of mortar around the box and then just squeeze it in?

But then you will have a problem with the DPM staying in place at the
top of the box. It needs to act as a drip tray above the box before
returning behind the box.

1968/9 build that had foam cavity wall insulation injected say 30 years ago?


Open to suggestions.


--
Adam

ARW wrote:

Well that OK if you are building the wall when installing the box.
What if the wall is already there?

fit one of the partly-underground ones?

https://www.bes.co.uk/gas-semi-concealed-meter-box-10321/

On Monday, 22 June 2020 19:45:47 UTC+1, ARW wrote:
What if the wall is already there?

It depends if it's your wall, or someone else's wall, and if they know who you are.

If it's someone else's wall, just wack it in with some mortar on a dry day and it'll be apples until the next shower.

Owain

On 22/06/2020 19:55, Andy Burns wrote:
ARW wrote:

Well that OK if you are building the wall when installing the box.
What if the wall is already there?

fit one of the partly-underground ones?

https://www.bes.co.uk/gas-semi-concealed-meter-box-10321/

Not enough space to get the wheelie bin past that one.

--
Adam

On 22/06/2020 19:56, wrote:
On Monday, 22 June 2020 19:45:47 UTC+1, ARW wrote:
What if the wall is already there?

It depends if it's your wall, or someone else's wall, and if they know who you are.

If it's someone else's wall, just wack it in with some mortar on a dry day and it'll be apples until the next shower.

It's my parents house wall.


--
Adam

On 22/06/2020 19:45, ARW wrote:
Two examples of how to do it here

https://www.wtknowles.co.uk/wp-conte...er-Box-IOM.pdf


https://www.northerngasnetworks.co.u...n-Guidance.pdf


Well that OK if you are building the wall when installing the box.

What if the wall is already there?

Oversized cut with a 9" angle grinder, trim the corner bits off and a
sloppy mix of mortar around the box and then just squeeze it in?

But then you will have a problem with the DPM staying in place at the
top of the box. It needs to act as a drip tray above the box before
returning behind the box.

1968/9 build that had foam cavity wall insulation injected say 30 years
ago?


Open to suggestions.


How about:

stick the DPM to the inner leaf of the wall with whatever you have to
hand. Let that go off before...

fit the box with /no/ mortar at the top so you can pull the DPM out to
form the drip tray. ISTM that's allowed by "The base and sides of the
box must be fully bedded into
the mortar to hold it..."


--
Robin
reply-to address is (intended to be) valid

On 22/06/2020 21:30, Robin wrote:
On 22/06/2020 19:45, ARW wrote:
Two examples of how to do it here

https://www.wtknowles.co.uk/wp-conte...er-Box-IOM.pdf


https://www.northerngasnetworks.co.u...n-Guidance.pdf


Well that OK if you are building the wall when installing the box.

What if the wall is already there?

Oversized cut with a 9" angle grinder, trim the corner bits off and a
sloppy mix of mortar around the box and then just squeeze it in?

But then you will have a problem with the DPM staying in place at the
top of the box. It needs to act as a drip tray above the box before
returning behind the box.

1968/9 build that had foam cavity wall insulation injected say 30
years ago?


Open to suggestions.


How about:

stick the DPM to the inner leaf of the wall with whatever you have to
hand.Â* Let that go off before...

fit the box with /no/ mortar at the top so you can pull the DPM out to
form the drip tray.Â* ISTM that's allowed by "The base and sides of the
box must be fully bedded into
the mortar to hold it..."



PS
or, come to think of it, just stick the DPM to the top of hole...


....assuming you won't be cutting slots either side of the hole and
feeding the DPM though them in order to reconcile a brickwork opening
c.365mm and DPM at least 700mm wide

--
Robin
reply-to address is (intended to be) valid

On Monday, 22 June 2020 20:05:14 UTC+1, ARW wrote:
It's my parents house wall.

Get your brother to do it, and take the blame.

Owain

On 22/06/2020 21:30, Robin wrote:
On 22/06/2020 19:45, ARW wrote:
Two examples of how to do it here

https://www.wtknowles.co.uk/wp-conte...er-Box-IOM.pdf


https://www.northerngasnetworks.co.u...n-Guidance.pdf


Well that OK if you are building the wall when installing the box.

What if the wall is already there?

Oversized cut with a 9" angle grinder, trim the corner bits off and a
sloppy mix of mortar around the box and then just squeeze it in?

But then you will have a problem with the DPM staying in place at the
top of the box. It needs to act as a drip tray above the box before
returning behind the box.

1968/9 build that had foam cavity wall insulation injected say 30
years ago?


Open to suggestions.


How about:

stick the DPM to the inner leaf of the wall with whatever you have to
hand.Â* Let that go off before...

fit the box with /no/ mortar at the top so you can pull the DPM out to
form the drip tray.Â* ISTM that's allowed by "The base and sides of the
box must be fully bedded into
the mortar to hold it..."



If the wall does not face towards the direction of prevailing wind and
rain, then there is less of a problem.

If rain running down the wall and ingressing through the top flange
and into the cavity is the problem, then you could fit a cavity tray
into the next mortar course above the meter box, extending a few inches
either side, and have a flap of lead or something that is dressed down
and just overlaps the outer lip of the box. Just as you would above
a window or any other opening.

If the wall is not exposed to driving rain, then after the mortar has
set, carefully waggle the box out of the hole and refit it with
a suitable sealant all around.