I spent two weeks too long with the EA textures on this greenhouse! Ugh! So here's a default using (what else) Goat's wood texture.
NOTE: When you draw the roof it will look green/white/blonde, as soon as you let go to finalize the roof it will turn into my textures. :)

Close-up w/Swatch
NOTE: When you draw the roof it will look green/white/blonde, as soon as you let go to finalize the roof it will turn into my textures. :)

Close-up w/Swatch
DOWNLOAD PSD - If you want to choose different colors ;)