There are two Gable Fans in the roof of the building for air exchange...They have duct work running from them into the ceiling of the rat house with 20x20 registers...There is also three widows on the side and back of the building.
Yeah they are good...Very easy to clean the actual trays...The best thing is you don't have to handle any of the rodents when cleaning...Saves a lot of time. The racks themselves need a wire brush to them every once in a while.
They are great in the summer...A fan cuts right through them and keeps everyone really cool!
Me too!!!