I know many people use metal roofs on their coops. When you do do you fasten it right to the rafters or on top of some osb or plywood?
What advantage/disadvantage would there be to just fastening to the rafters?
I am sure we over did it.
We put down some of that foam insulating board, then plywood, then metal. But we live in a rather hot part of our state, and we did not want to build a hot box.
Frying the eggs should be the cooks' option.
There is a picture of our coop on my BYC page.
(Don't let that smashed thumb deter you.)
guess I over did it. We had the rafters, then 1/2 OSB, then tar paper, then the metal roof. We get lots of wind, loads of snow and extreme cold so we built it to keep our girls comfey when it's -30. Snow tends to slide off so there is no large weight load, we went with a 5-12 pitch.