Using soil vent pipe for bathroom fan

[grahamgibson]

Hi,

Is it permissable to T into a soil vent pipe with the outlet from a bathroom roof extractor fan just before the vent pipe goes through the roof? I can't see any obvious issues with this, but perhaps I'm missing something. My bathroom fan is right next to the vent pipe in the loft so it would be very convenient to do this without having to knock another hole through the roof.

Thanks,
Graham

 

[seco services]

only if you want the smell coming back in the bathroom when you flush the toilet etc.

 

[doitall]

No.