(A) All exterior single swinging wooden doors less than 60 inches in width shall be solid staved core construction at least one and three-eighths inch thick; provided, however, if solid core wooden doors are less than one and three-eighths inch thick, they shall be allowed if they are covered on the inside with sheet steel of at least 16 gauge thickness secured with screws on six-inch centers around the perimeter.
(B) Metal doors less than 60 inches in width shall be constructed so as to have strength at least equal to that of a solid staved core wooden door one and three-eighths inch thick.
(C) Doors with glass panels and doors where glass panels are located in the adjoining walls and within 40 inches of the door frame shall be constructed and secured as follows:
(1) They shall be constructed with rated burglar-resistant material, as defined § 15.52.030; or
(2) The glass shall be covered with iron bars of at least one-half inch round or one inch by one-fourth inch flat steel material mortised, spaced not more than three inches apart, secured on the inside of the glazing; or
(3) The glass shall be covered with iron or steel grills of at least one-eighth inch material of two-inch mesh secured on the inside of the glazing.
(D) Exterior single swinging doors less than 60 inches in width shall be secured with a dead latch having a minimum one-half inch projecting bolt and with a dead bolt lock having a minimum one inch bolt. The bolt shall contain an insert and the cylinder shall be secured with a cylinder guard if the face of the cylinder projects beyond the face of the door.
(E) All windows shall be secured by a lock or locking device and shall be capable of withstanding those forces described in Test A as provided in § 15.52.060(B)(1) for sliding glass windows. They shall be secured from lift-out while in the closed position.
(F) All swinging doors shall be secured at the strike side by a jamb of one piece or rabbet construction.
(G) All exposed hinges on exterior doors shall have nonremovable hinge pins and hidden or nonremovable screws.
(H) When the strike for any exterior door is secured in a wooden frame, it shall be secured by screws not less than two and one-half inches long.
(I) Rolling overhead doors, solid overhead swinging, sliding or accordion doors or single or double swinging doors greater than 60 inches in width shall be locked or controlled by electrical power operation or shall be secured in the following manner:
(1) With a multiple point lock securing both sides of the door at a point within 24 inches of the bottom, operable from a single locked lever or cylinder lock containing a minimum five-pin tumbler operation;
(2) With a padlock and hasp on the inside near the top center; or
(3) With a hardened lock hasp and padlock with hardened shackle and minimum five-pin tumbler operation with nonremovable key when in the unlocked position securing each of two sides of such door.
(`78 Code, § 15.52.110.)