Board-up and securing:
Code requires vacant building to be secured to prevent unauthorized access. In the event that a building’s windows and doors are no longer intact and able to be securely locked, the building must be boarded up. The following board-up method represents the minimum standard permitted by code (this method is most useful for short-term board-ups where the window and door jambs are in good condition):
- Minimum of 3/8” plywood or pressboard
- Painted with a blue-gray color exterior grade paint
- All boarded openings 10 feet above ground level should have a 1 foot square ventilation opening covered with a 1/4” wire mesh screen
Window and door openings with deteriorated jambs, or buildings susceptible to break-ins, may require a more substantial board-up method such as the one recommended by the IAAI/USFA. The details of this board-up method can be found at http://firearson.com/firearson/media/files/Abandoned%20Building%20Toolbox/Board-up-Specifications.pdf . This method should include both the blue-gray exterior grade paint and the ventilation opening from the previous standard.
Clean out combustibles:
Code also requires that vacant building be emptied of all combustible material (garbage, trash, furniture and other household items).