Damaged Chimney in Attic
This is not really a great picture and it's a
little out of focus, but you can see there is some sort of damage to
this brick chimney in the attic.
The streaks of white running vertically down the chimney could be from
previous roof leaks and it looks like some of the bricks and mortar are
damaged.
This brick chimney could probably be repaired instead of replaced.