An opening less than thirty (30) inches (in) but more than one (1) inch (in) high,of unrestricted width, in any wall or partition; such as a ventilation hole or drainage scupper.
An opening less than thirty (30) inches (in) but more than one (1) inch (in) high,of unrestricted width, in any wall or partition; such as a ventilation hole or drainage scupper.
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