You guys have saved my back side BIG TIME!!!. I had a roofing contractor say that they were going to use 1 1/2" - 2" roofing nails for the ridge vent project. Luckily, we haven't signed any paperwork or handed over any $ yet. I know from reading around this site that 2 1/2" is the minimum that should be used, if not longer.
We are going with the ridge vent now and may get the hip vents later.
Thanks for answering my Q's and preventing me from getting hosed.....again. (That was a different project....)
Did you test further? 10 degrees warmer/colder? Wind 5mph faster? Any sort of comparison in the same attic?
What would you suggest to get the air moving in that scenario? Or in the OP's scenario?
My house is similar to the OP's and I know the results of what I did to it. I'm a firm believer in air sealing and insulating VS trying to cool the inside of a house by fooling with the roof. But we need to keep the moisture out.
I was not able do more testing in different conditions.
I did make a video demonstrating the air flow after installing a power fan in the hip end.
Pretty much dispels any rumors concerning power fans pulling air from ridge vents.
So what is up with the 1/300 that I have see on some of the ventilation product packaging? Is it an old standard? Is it a government standard?
Actually that is an old standard. From the 1940's if I recall.