3RRL's roof is metal, so it won't burn, but what concerns me if I fire gets close enough, of enough magnitude, with the steel simply conduct the heat to the nearest non flame proof item, the wood trusses? Can't put a sprinkler up there, inside the attic, so the only way to stop that is to put one close enough to the roof to "steam" away the heat, thereby saving the attic.
More sprays under the overhang and the walls will survive.
David from jax