Builder chasing waste pipe into exterior wall reg compliant?

[Medlar]

Hi all

I have some builders renovating the bathroom. Initially they wanted to box in pipework but then discussed dropping under the floorboards. I've come back to find a huge section of horizontal brick work removed. I'm concerned this will impact structural integrity and not meet building regs?

The wall is next to a bay window which meana the waste cannot run externally. There is a wooden beam in the wall above the removed brickwork which I assume is support due to the bay window.

Any advice very much welcome.

Thanks
Jack

 

[HERTS P&D]

Looks like the pipe is running up hill!

Andy

 

[blup]

They are avoiding cutting the joists, ask them to box in the pipes if you are concerned about the walls weakening, or create a false wall.

 

[Medlar]

Thanks. Yes, I guess they thought to go through the external wall lower down they would need to cut the joist which might also cause issues.

If it meets building regs and is structurally sounds I have no issues. But if there is chance of the wall collapsing or a surveyor flagging it if I try to sell then I am concerned - do you know if that is the case?

If so I will ask them to replace bricks and box in.

Cheers

 

[opps]

Looks like the pipe is running up hill!

Andy

Agreed. Unless they plan to raise the basin pipe by two inches, the left hand pipe will be running upwards.

 

[freddiemercurystwin]

The wall chases aside, the photo does not bode well, the mess left by the builders, all those push fits to be hidden away, did they use an axe? It does not give the impression of proud workmen.

How thick is the wall, is it cavity or solid?

 

[Medlar]

It's a solid wall in edwardian house.

 

[danfre]

Really poor standard of work

 

[Medlar]

Thanks - can anyone confirm if this is building regs compliant / dafe or not?

What would you suggest to fix it.

Help is much appreciated. Thanks

 

[kingandy2nd]

What would you suggest to fix it.

Change builder.

No one can tell you if it’s safe/compliant unless you can see who much material has been removed from the wall.

Can’t really see from the pictures, but looks deep.

The fact you’ve got multi colour waste pipes would put me off, but that’s probably my OCD.

As others have mentioned, there isn’t the correct fall on that pipe and no way to raise it as the basin pipe is already at the top of the chased part of the wall.

 

[Medlar]

Thanks. It's about a brick deep on a wall that is about two bricks wide. I don't think the waste is as they intend to leave, there is some slope to have a slight drop on it if the sink waste is shortened.

My main concerns is load baring on the wall.

 

[noseall]

Hi all

I have some builders renovating the bathroom. Initially they wanted to ox in pipework but then discussed dropping under the floorboards. I've come back to find a huge section of horizontal brick work removed. I'm concerned this will impact structural integrity and not meet building regs?

The wall is next to a bay window which meana the waste cannot run externally. There is a wooden beam in the wall above the removed brickwork which I assume is support due to the bay window.

Any advice very much welcome.

Thanks
Jack View attachment 368910

Holey mukking foley!!!!

Vandalism right there.

 

[freddiemercurystwin]

I don't think there are regulations for double brick width walls but for a single leaf (ie 100mm wide brick/block) the chase can be up to 1/6 width for horizontal and 1/3 width for vertical. One brick deep chase is too deep here.

So assuming your wall was 215 wide then vertically maximum chase of 72mm and horizontal would be 35mm.

 

[HERTS P&D]

Is their first language English?

Andy

 

[freddiemercurystwin]

It's on (PDF) page 30 of Part A 2630: https://assets.publishing.service.gov.uk/media/5a80437640f0b623026927b2/BR_PDF_AD_A_2013.pdf