My poor birds have been burning up! On Sat (the hottest day so far) I decided I should get some shade cloth to cover the run since I've used tarps, but they seem to just trap the heat and make it worse. But Shade cloth is expensive. Then I was in Sam's and found a big roll of green shade cloth for $32!!! 30 ft. x 8 or 10 ft. I think that's a fair price. I'd recommend it - it really does drop the temp. 15 degrees under it!! Works great to block the afternoon sun on the deck also!!!