Soffit vents and extractor fans - humidity transfer to loft?

[Cellophaneskies]

Hi all

Looking to add some soffit vents to my soffits to try and alleviate some condensation in my loft.

At the rear of the house this fine, but st the front they will be above a bathroom window (first floor), boiler vent (ground floor) and in the future, vent for kitchen extractor fan.

Would having the soffit vent above these outlets in the front of the house allow the extracted humid air to rise into the loft space? Or would it disperse in the ambient air and not be a problem? Don’t really want to increase humidity in the loft, when I’m trying to reduce it?

Thanks

 

[Wayners]

You can't have a boiler flue within 300mm of a vent. Think you are well clear of that.
Seal all the holes in upstairs rooms like airing cupboard and loft hatch.
A roof vent near the ridge and vents in soffit will get air blowing through

 

[Cellophaneskies]

Thanks, but any risk from bathroom window? Or not really a consideration? Thanks