Garden wall tied into house wall, removal?

robodelfy

robodelfy

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Hi

After getting rid of a huge bush INTL noticed the garden wall is tied into the house wall, and I always had damp in my kitchen in that corner. So I'm guessing that must be why.

I've grinded it, and need to chip off the rest to get it relatively flush.

I'm getting external wall insulation soon. Should I just render over this patch? Or is there something else you'd do in this situation

And there were a couple of bricks with metal bar embedded inside, I'm guessing it's ok to just cut these off?

Thanks
20200812_105606.jpg
 
robodelfy, good evening.

Can i suggest you leave the area open at present, if left open the bricks in the area of wall that you mention as being damp inside will have a bit of a chance to dry out from the outside inwards.

As far as I can see, the metal sticking out of the wall is an old wall tie and you should be able to remove it.

Ken.
 
KenGMac said:
robodelfy, good evening.

Can i suggest you leave the area open at present, if left open the bricks in the area of wall that you mention as being damp inside will have a bit of a chance to dry out from the outside inwards.

As far as I can see, the metal sticking out of the wall is an old wall tie and you should be able to remove it.

Ken.
Click to expand...

Ok yeah good idea. That side is south facing so it gets sun all day. So I can leave it for a few weeks even, to try and let it dry out
Then I guess I can just render it
 
The fence post butting the wall should have a strip of DPC material behind it. It could be introducing moisture into both houses.
All the rough remains of render and maybe the cracked patch of Tyrolean should be hacked off and redone. There's a damp looking area in the corner?
Below your Bellcast there's render that needs knocking off - only brickwork should show below the Bellcast.
 
ted456 said:
The fence post butting the wall should have a strip of DPC material behind it. It could be introducing moisture into both houses.
All the rough remains of render and maybe the cracked patch of Tyrolean should be hacked off and redone. There's a damp looking area in the corner?
Below your Bellcast there's render that needs knocking off - only brickwork should show below the Bellcast.
Click to expand...

I'm actually moving that fence post as the neighbours built it on to my wall, and I'm soon getting external wall insulation done and its in the way. But I didn't realise you should put DPC behind a fence up against a rendered/painted wall.

The external wall insulation people said theres no need to hack off blown render or patch it up, as they mechanically fix over it all anyway. But I did chip off a lot of blown render anyway!

The bell cast is the overhang at the bottom? Why should this be only brick work?
 
capillary attraction sucking up ground water and splash will bridge the DPC, and creep behind the bellcast and render.
 
ted456 said:
capillary attraction sucking up ground water and splash will bridge the DPC, and creep behind the bellcast and render.
Click to expand...
I had to google capillary attraction!

So I should just chip off all the render below that line. I can't see why the render makes a difference, does what you described above not happen even if its back to brick?
 
denso13, Yes, you do need to. Whatever you have seen was wrong.
Best practice has always been to keep external render out of ground contact - and internally, all render, plaster or p/b to finish above the floor.
 
ted456 said:
Yes, you do need to. Whatever you have seen was wrong.
Click to expand...

No you don't and no they weren't. These are also new properties I am talking about to the latest building regs and NHBC specification/cover.
 
denso13,
You give excellent advice in the plumbing forum but what you are trying to nail down here is just flat out wrong, & could be expensive for a homeowner.

Most new rendered housing or new housing with external insulation has a BellCast fixed just above DPC level - its always fitted just above the DPC.
Are you claiming that on the properties you've seen that the render and maybe the insulation has no BellCast and drops straight down into the ground?
Or are you claiming that the BellCast is installed but, for whatever reason, a smooth render is then spread below the BellCast?
And are you claiming that the latest Blg Regs & NHBC specs have decided to ignore "wicking" "capillary attraction" and bridging?
 
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