richo106 Posted January 22, 2023 Share Posted January 22, 2023 Hi All I have just been thinking about our build regarding our soil stacks. At the start of the build we decided to put the soil stacks externally without much thought If I’m being honest. I am not sure I have made the right decision to go external, there is going to 2 stacks both the sides of the house so not in direct view. Is it better to run them internally or externally? We are now have a string course around the house and worry this means we will have to set the soil pipe over that too! Any comments welcome Link to comment Share on other sites More sharing options...
Iceverge Posted January 22, 2023 Share Posted January 22, 2023 We have ours internally with an AAV. Mainly for heat loss reasons. If you need to have a vent at the top you're probably better off thermally with them outside. From an airtightness point of view either is fine so long as you deal with the wall penetration junction properly. Maintenance, noise, ease of repair and fitting you're probably better off outside. Link to comment Share on other sites More sharing options...
HughF Posted February 8, 2023 Share Posted February 8, 2023 Having spent an entire day unclogging a blocked soil stack that was boxed in, inside my brother-in-laws house, I’d definitely want that sort of thing outside of my house. We were 10 mins away from ripping out the kitchen cupboards to expose the stack when I managed to get it clear. Link to comment Share on other sites More sharing options...
Dave Jones Posted February 8, 2023 Share Posted February 8, 2023 On 22/01/2023 at 21:14, richo106 said: Hi All I have just been thinking about our build regarding our soil stacks. At the start of the build we decided to put the soil stacks externally without much thought If I’m being honest. I am not sure I have made the right decision to go external, there is going to 2 stacks both the sides of the house so not in direct view. Is it better to run them internally or externally? We are now have a string course around the house and worry this means we will have to set the soil pipe over that too! Any comments welcome only put them external if your going for the 70's council estate look. They should feed into a chamber as soon as practivable to allow for easy rodding. Vent them to a roof tile vent. Link to comment Share on other sites More sharing options...
Mike Posted February 8, 2023 Share Posted February 8, 2023 If your layout allows it, route them through an attached garage. It avoids the visual clutter outside while keeping them easily accessible. Link to comment Share on other sites More sharing options...
Temp Posted February 8, 2023 Share Posted February 8, 2023 Ours are all internal. Make sure they have the special large radius bend at to bottom. The stack furthest from the main sewer should be open vented (according to our BCO) any others can have an AAV. Link to comment Share on other sites More sharing options...
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