I'm in nc so we get cold and hot.
Welcome to BYC!

Unless you're up on Grandfather Mountain or nearby, we don't get anything like a chicken would think of as cold so I really do not recommend a clear roof at all in our climate. Our birds need shade and ventilation.

Hot Climate Chicken Housing and Care
Repecka Illustrates Coop Ventilation
10F in Central North Carolina in an Open Air Coop