Coastal storm approaching?
Close all interior doors, in addition to all windows and exterior doors, to reduce damage risks.
Closing interior doors can give your roof a fighting chance in a severe wind storm. 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. In our testing of a 1,400-square-foot single-story home at the IBHS Research Center, we found that simply closing the internal doors reduced by 30% the amount of extra load the roof had to withstand in this situation.