[RKDinOKC]

It works. Went into the garage today without any lights. Usually the vent action pulls the overhead door away from the seals at the top enough to let air and light thru. After stuffing towels under the heater closet doors there is no light at the top of the overhead door, ie no air is getting sucked thru the garage! And it was pretty windy today creating more flow thru the ridge vent.

I am such a weirdo to notice and figure that out.