Soil stack diversion

[Knoxy]

Sorry previously posted in Wiki, so here goes againops


Hi all, I am new to this so please forgive if doing it wrong!

We are doing a self build extension to the back of our property and the existing soil stack is against the back of the house, this means it will need to go through the roof of our new extension, the roofer suggested diverting the stack so that it would have a bend on it and then travel along the wall sloping upwards horizontially inside the ceiling of my new kitchen and then venting outside at the side of the house.
Can this be done safely e.g no escaping smells and are building regs needed.

 

[cmother1]

Not sure what your layout is here. Can you provide a diagram?

 

[Fluffster]

At what level do any upstairs wc bathroom etc connect to the stack as the wet section of the stack must be vertical with no bends.
However you can divert the stack above the highest connection to vent at least 1 metre above the eaves or any opening.

Pete

 

[Knoxy]

Hi I've uploaded some pictures, what we want to do is cap off the existing pipe, add a t bend then follow along the new roof struts coming out at the side of the house, also as previously asked would building regs need to be involved

 

[noseall]

We are doing a self build extension..............................the roofer suggested

Self build eh.

As Pete said really but what is the problem with exiting through the roof? Either a pitched lead slate or lead multi slate will deal with weathering and the pipe can be positioned so that it misses any rafters.

 

[Knoxy]

Hi we had gotten use to the fact that the stack would be boxed in and exit the extension roof, but the roofer felt it could be a problem re: leaks, so mentioned divert, my husband would be happy not to touch it as he has enough to do with other parts of the build

 

[noseall]

If fitted correctly, there will be no leaks. Sounds to me like he is being lazy.