Coastal storm approaching?
Close all interior doors―in addition to exterior doors, garage doors, and windows―to reduce damage risks.
Closing interior doors can give your roof a fighting chance in a severe windstorm. If a window or door is broken by flying debris or has blown open, your house will rapidly fill with air (imagine a balloon inflating inside your house) and cause a dangerous increase in peak forces pushing on the roof. Rigorous scientific wind testing on a full-scale 1,400-square-foot single-story home at the IBHS Research Center reveals that closing interior doors helps compartmentalize the pressure inside a home into smaller areas, reducing the force on the roof by as much as 30%, which gives the roof a better chance of staying intact.