All homes are done that way here. That is except a few that forgot. Usually at the top of the windows and doors, porches and foundations but some builders are now installing them at the bottom and top of the windows. My home was built in 70 and it has them at the foundation but there not above the windows. No problems yet. I have seen lintel/shelf angles that rusted and popped up the brick.

__________________
Mike Schulz License 393
Affordable Home Inspections
www.houseinspections.com