Mat... There probably is more detail in the sky in the raw file... and like in old fashioned processing it is fairly easy to bring out in raw processing.
You can not expect to hold detail in such a wide brightness range with out some work...
If you use Grad filters on the lens it will also effect the tops of the sheds.
Probably the easiest way is using a program like Tufuse pro, either a single raw image or by blending two or more exposures.... this would work very well with a static shot like this.
There is not a simple in camera solution.