Leave Sewer vent pipe inside extension

coco0981 · 02-12-2015 11:10AM #1

Hi

We are currently looking at building a single storey side extension onto our end terrace house. Had a architect out to look and he has suggested leaving a sewer vent pipe inside the extension and passing it out through the roof. It is the pipe from the downstairs bathroom, there are two others at the back of the house serving both upstairs bathrooms.

What do people think of this? Once it was boxed off internally it would look fine I suppose. Is blocking it off a complete no no? It is about 15 feet from the next vent

Thanks

coco0981 · 06-12-2015 12:12PM

Anyone have any idea on what the best option would be here? I'm pretty much clueless with these things so any help is much appreciated

Calahonda52 · 06-12-2015 12:46PM

Blocking off not an option.
Is the toilet connection to this above or below ground.
Will extension foundations span across sewer pipe?

893bet · 06-12-2015 12:47PM

It's hardly a big job to take it outside when you are putting on an extention.

BryanF · 06-12-2015 12:52PM

coco1981 wrote: »

Anyone have any idea on what the best option would be here? I'm pretty much clueless with these things so any help is much appreciated

your architect Must comply with http://www.environ.ie/en/Publications/DevelopmentandHousing/BuildingStandards/FileDownLoad,24906,en.pdf

Hard to tell without site survey

Have you researched: 'Ventilated discharge stacks terminated inside a building when fitted with air admittance valve'?

coco0981 · 06-12-2015 01:38PM

picture attached, main drain runs from left to right in picture. There is already a vent at the corner of wall on right hand side. Planned extension is to run the full width of house. As I understand it the vent at the right hand side is not much use as the pipes slope down to there.

Skatedude · 06-12-2015 02:15PM

Calahonda52 wrote: »

Blocking off not an option.
Is the toilet connection to this above or below ground.
Will extension foundations span across sewer pipe?

they mean boxing in the pipe not blocking it. it would still vent above the extension ,

Calahonda52 · 06-12-2015 03:17PM

Skatedude wrote: »

they mean boxing in the pipe not blocking it. it would still vent above the extension ,

As the OP wrote: Is blocking it off a complete no no? what does above mean?

coco0981 · 06-12-2015 04:04PM

Calahonda52 wrote: »

As the OP wrote: Is blocking it off a complete no no? what does above mean?

You are correct. The architect has suggested leaving it in situ so that would obviously mean boxing it off internally, I'm not sure if this would look great. I was wondering if blocking it off was an option which a previous poster has said is a non runner

Edit- See that it was you said blocking off was a non runner. What would be the best solution so? Leave it in place and box off?

Leave Sewer vent pipe inside extension

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