Originally Posted by msyv
Now the big question. I have plywood soffits up right now and do not have nearly enough ventilation. I am planning on replacing the plywood with the hidden vented vinyl soffit. Everything I have read so far says it is OK to over vent the soffit. It becomes a problem where the roof venting is more than the soffit. Is this something I should put a lot of thought into? I was planning on using the vented soffit all around the roofline (it's a hip roof on a ranch) with a ridgevent.
It would likely be a lot of work to remove all the plywood soffit.
As long as the cross sectional area of the soffit venting equals the c/s area of the roof venting, vents cut in the plywood should be suffient.
I have seen where perforated vinyl soffit has been placed where the vents have been cut, but its my opinion that this is insuffient, as the vent is throttled.
I would prefer to have too much soffit venting, rather than too little. Otherwise, circulation will be effected!
I would like to hear arguments explaining why too much soffit venting would be a problem.