Will one of those roof vent (bubble shaped twirly things) work for a chicken coop or does it vent too much? I notice a lot around my area on houses, barns, etc.. A friend has an extra one (not a HUGE one) laying around his barn and said he will give it to me if it will work. My main coop is 12x16 and faces south (about 8' high on front and a little over 6 on the back). I have some screened adjustable heater vents installed in the higher walls but have been wondering about the roof vents. If nothing else would it be better to use one of the roof vents in the summer and then close it off somehow for the winter (maybe screw-on plywood cover on the inside?) and revert to the smaller vents at the top of the walls? There are adjustable windows all around (or at least soon will be all finished) but I don't want to lose all their heat in the winter.
Thanks
Thanks