We are interested in providing ventilation for our coop and have looked into via internet an RV size solar powered fan.We are unable to find an answer on the following concern: Does a solar attic fan work day and night? We need it to run 24/7 not just part of a day. Our coop is not that large 44 " wide and 37 " long .We will not be running an electric run attic fan due to the high energy costs. Also considering an RV size turbo roof fan if needed. Problem with the turbo might be that we do not always have a good wind. This is the tropics we live in.mid 80's day temp, night mid 60's avg. Rainfall is extremely hard as well as very often. Please does anyone have experience and /or knowledge on this topic? Thank you!