Soil pipe ventilation when not close to an opening

[Hannah82w]

The approved docs say svps should be ventilated to 900mm above openings when within 3m - does the same apply if there isn't an opening within 3m, and for a single storey building?

[JohnMo]

Best to have them well out of the way, they can stick if the wind blows the vented air downwards.

 

[nod]

I’ve taken them in line with the ridge on single story 

[Hannah82w]

Thank you, we've gone with 900mm.