The cost of the metal will depend on the type of metal used and how large the barn is.
Metal roof for barn installation.
Metal roofs look great and will last forever.
This is because the overhang has a negative angle and needs careful flashing to prevent that joint from leaking.
Metal roofing 101 diy steel roofing installation over shinglessubscribe.
You can install a metal roof on any shed roof fairly easily except a barn style gambrel roof with overhang.
This does not include additional materials such as tools and insulation.
Exposed fastener metal roof systems.
But it can still be done as demonstrated in these photos.