§94.08 Vents

All vents or openings for light or ventilation in the foundation, walls, or roofs of buildings which may be accessible to rats from the ground or other surface of by clinging shall be rat–proofed by the installation of iron grills or 16–gauge or heavier wire cloth or expanded metal of 18 or heavier gauge, all having openings no greater than one–half (1/2) inch in any diameter. The metal may be sealed in place with cement mortar or it may be installed on a tightly fitting wooden or metal frame. If a wood frame is used the edges of the wire cloth or expanded metal shall be covered by strips of metal approximately one (1) inch wide.

(“Vents” incorp. 1–22–1952 by O–5046 N.S.)