That ALMOST sounded like a compliment LOL!
Seriously this is my first house and I am going to keep it for 15 years, so yes I tend to over think things. It also amazes me how little professional roofers understand their product. For instance I asked several bidders if I installed a ridge vent should I close off the gable vents so air will come up thru the eave vents instead of bypassing the eaves and coming through the higher gable vents. They all said “no, the more vents the better” except one crusty old-timer…he pre-empted me, as soon as I said I was considering a ridge vent he said “if you do that you MUST close off those old gable vents”. He is the leading contender for my work so far although not the cheapest.
I was reading up on ridge vents and one manufacturer stated they work best on a windy site as the wind passing over the peak creates a negative pressure on the other side…makes complete sense.
So does my concern about opposing eyebrow or dormer vents allowing wind to enter at that level and continue out the other side…not much air from the eaves will be sucked out I should think?
And yes I agree there is a lot of variance between what different people recommend, but what i want IS for air to enter the eaves and exit the top, as efficiently as possible and without depending on active fans.
Having them on the side away from the wind direction (and the front of the house) might work well, or there might be turbulence/eddy currents as wind passes over the peak, so maybe the air will NOT be pulled out by a relatyive negative pressure gradient…could be disrupted air entering
Just wondering if there was a standard or building code, or if anyone has temp readings to show it worked just fine on one side only, or had done canister smoke experiments …
The only reason i am considering eyebrow vents is one contractor told me the ridge vents work fine when new but over time get dirt and dust which reduces performance. This is the plastic rollup style ridge vent.
[quote=“we love tearoffs”]wow, that’s pretty sophisticated thought on ventilation for a homeowner. You must be smart, or at least think you are. I can hardly comprehend it. I always put the vents on the back so you don’t see them, well, that’s usually where they were before I started
I’ve heard so many opinions on venting that my head is still spinning like a wind turbine. i just know you need some venting and want to suck from the eaves and out the top.