Hoop House Ventilation
I plan on building a hoophouse up here in southern Ontario and would like to garner ideas for ventilating my cold frame while I am absent and at work full time during the day. Unfortunately I can not be around to manually lift the coverings on my hoophouse for ventilation purposes.
Is there a cost effective (cheap) automatic alternative that will ventilate my hoophouse according to hot temperature extremes? My hoophouse I plan on using pvc 1 inch piping all around covered with greenhouse poly plastic covering.