1)Does anyone know where can we buy a cover for these large greenhouse fans(photo)? Or is there a reason none of them have covers?
There are rats getting in the greenhouse through the fan when it is off at night and also birds fly into it or perch and get killed when it suddenly goes on at 9am.
2) is there a more permanent and rat-proof option for sealing the space between the corrugated roof and the sides of greenhouse than foam inserts(photo)?
by caterpillar1000