Soil stack airtightness

[Selfbuildsarah]

Our timber frame is nearly up and we have a roofer and builder lined up for external work. I don’t think our roofer is familiar with airtight, timber frame or our builder 😬 We have been advised to use ProClima Roflex gasket and Tescon Vana tape to seal soil stack. Apologies if this is a silly question (mine usually are) but is this for penetration through the roof tiles or lower or both? Should we also be using a special flashing? Our roofing will be Danum TLE system. We are going to have to explain this clearly to roofer and builder this morning!

[Bramco]

Would it be possible to run a soil stack up the side of the house? We did this to avoid having a penetration through the roof.

 

All internal soil locations have air vents. The external one runs vertically parallel to a downpipe, so isn't too out of place. It connects to the sump where all the internal ones come together.

[Selfbuildsarah]

Thanks Branco. We did think about this. We will have a further chat with builder this morning.

Presumably we will have to get the OK with building control first if we choose to do that?

Edited 40 minutes ago by Selfbuildsarah
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