Water damage

I drove by this with Jen last week. This is what happens inside your walls when water is allowed to enter over long periods of time. More work for carpenters.  Caused either by poor installation, lack of maintenance, or material defect. Notice that it happened at both the sill of the window and door, but not all of them. If it looks like water is or would go in, it probably is. A little maintenance can save large repairs.