§94.06 Doors — San Diego Zoning Code

All doors and door jambs or frames serving as front, side or rear entrances to basements, cellars, ground or first floors, and those on upper floors having exterior stairways, as well as any other doors which may be accessible to rats outside of buildings or between buildings and different business establishments shall comply with the following:

(a) Solid, strong doors constructed of metal, hardwood, or other material approved by the Health Officer as being resistant to rat gnawing, which fit snugly in their frames and on their thresholds or sills so that rats cannot gain

Ch. Art. Div. 9 4 0 3

San Diego Municipal Code

Chapter 9: Building, Housing and Sign Regulations

(6-2000)

entrance through them and which do not present irregular surfaces or cracks for rats to gnaw through may be passed by the Health Officer without further treatment, but doors which are in such disrepair or in such poor condition that they cannot be satisfactorily rat–proofed shall be replaced by new ones or shall be repaired so as to be satisfactorily rat–stopped, and they shall swing smoothly and easily on their hinges.

(b) Doors constructed of soft wood or other material not resistant to rat gnawing, doors which show evidence of rat gnawing or have any irregularities, cracks, or small openings along their lower margin or sides and therefore offer potential sites for rats to gnaw, and doors which have any openings over three–eighths (3/8) inch wide anywhere or between the door and door sill or threshold shall be fortified and rat–proofed by using either metal channels of 24–gauge or heavier metal or metal flashing of 26–gauge or heavier metal. After application of either metal channel or flashing the door shall swing or move smoothly without any binding.
(c) Wooden door frames shall be flashed with 26–gauge or heavier metal to the same height as the door flashing whenever there is a crack or other defect between them and their doors which may be utilized by rats for gnawing through the frame.
(d) Irregularities or defects in wooden door sills shall be corrected by flashing the sills with 24–gauge or heavier metal.
(e) Irregularities or defects in door thresholds constructed of concrete or masonry which produce openings under doors three– eighths (3/8) inch or greater shall be corrected by pointing up with cement mortar or other suitable rat–proof material approved by the Health Officer or by constructing a new threshold of similar material.
(f) Sliding wooden or metal doors and swinging metal doors that have a space greater than three–eighths (3/8) inch wide between them and their sills or thresholds shall have either rigid or movable sliding strips of 20–gauge metal or equivalent material fastened to their lower margins so that spaces under such doors when closed will not exceed three–eighths (3/8) inch in width.
(g) Mail slits in the lower part of doors which are accessible to rats shall be fitted with covers which cannot be raised by rats from the outside.

Ch. Art. Div. 9 4 0 4

San Diego Municipal Code

Chapter 9: Building, Housing and Sign Regulations

(6-2000)

(h) Other openings in exterior doors used as vents or for other purposes shall be fitted with iron grill work having no openings larger than one–half (1/2) inch in any diameter or with wire cloth of the same mesh 19–gauge or heavier. (“Doors” incorp. 1–22–1952 by O–5046 N.S.)