To Ed - I respectfully disagree that simply adding more soffit intake is going to solve the problem without doing anything to the exhaust side. My issue seems to be worse on days with very little or no wind.[/quote]
It wasn’t my assumption that I was posting about, but that of William Rose, who is either the, or one of the, most revered researchers studying attic ventilation. Although I may challenge some aspects of some of their conclusions on occasion, I will still respect his opinions.
Instead of diagnosing the problem after the barn door has been closed, this would have been a simpler matter to deal with during the initial installation by using a product like the Smart Vent that we had discussed initially. At that time, you had informed me which route you were going to take as far as your choice of who to do the job, you stated that the other party had everything included exactly as I had specified.
Now, the intake ventilation was not addressed properly utilizing the entire perimeter, or even half of it.
15 # felt was used in lieu of 30# felt.
3-ply plywood was substituted for 4-ply plywood.
A less regarded style of Ridge Vent was used, which was the Cor-A-Vent product, which does not contain the external baffle like the Shingle Vent II or the Cobra Snow Country.
That version of ridge vent is notorious for not being able to properly exhaust the internal air, firstly, because it functions Only on thermal buoyancy, and secondly, because it is prone to being clogged up due to the lack of internal warm air being released, therefor not melting the fresh snow fall. I posted photos of the Shingle Vent II, the following morning after a 14" snowfall, depicting how the external baffle trough was clear and properly functioning.
In hindsight, did the cost of going with lesser specifications solve the problems?
Even with that said, there is no guarantee that the suggestions for doing the job to a higher level of specification would have alleviated your current concerns, but it would have at least ruled out several distinct possibilities.
I never have seen Solar Powered RIDGE VENTS before. Are you sure about that, or were you referring to Solar Powered Attic Ventilators or Powered Fans?