Thanks @philipma1957 I will grab the flashing paper and the tar and 24 screws later today , the installer gets off work at 4pm and will head here directly so I will be ready I already ordered the low gravity intake , but I can return it if your Idea is better, I figured I could put a filter on the gravity intake after its installed
my issue with the gravity intake is simple will you add duct work in the garage so the air goes really low to the ground? if you do that it will work well.
gravity intake with an attached duct to the floor >>>>> miners >>>>>>> roof fans
the above will pull air from roof down a flex duct past a filter at the miners up to the roof
Okay gravity intake attached to the vents drops the cold air down to the floor. The 3 soon to be six exhaust fans pull the cold air at the miners then out the the garage. Very nice.