TheScullster wrote:
Pros and Cons of these?
Originally, the design said soffit vents.
One builder suggested that these get dirty (I must confess having
seen dirty
holy soffits) and recommended over fascia vents.
Any comments on the over fascia variety?


TIA

Phil

They will probably get dirty or blocked in both positions. At least on
the soffit you can clean them, whereas if vents behind gutters could
be difficult. I would go for continuous vent along back edge of
soffit. (min. 1000 sq mm per metre run, I think). Avoid the round
ones, need to be at about 150 mm c/c to suit building regs.