Head flashings are crucial for protecting your home from water damage as they are installed at the top of openings to prevent water infiltration. It is important to ensure that head flashings extend all the way back to the weather resistant barrier to provide a solid line of defense against water. Jake Bruton's #1 rule for foolproof installation is to always install head flashings on all windows and doors, regardless of the overhang. Additionally, overhangs are considered the ultimate head flashing as they provide extra protection by shedding water away from the openings. Proper planning and forethought in the design phase can help prevent future issues and ensure the longevity of your home.