Content Page: 5 Required Ventilation-Openings For Habitable Rooms

(1) Minimum area of openings. – Every habitable room shall have required ventilation-openings in the walls of an aggregate are of not less than 5 per centum of the floor area, but in no case less than 0,5 square meter: Provided that, in the case of habitable rooms having a floor area exceeding 50 square…