Exterior doors (excluding glass patio doors) and doors leading from garage areas into dwelling shall be of solid core no less than one and three-eighths inch thickness.
Sliding patio glass doors opening onto patios or balconies which are less than one story above grade or are otherwise accessible from the outside shall have the moveable section of the door sliding on the inside of the fixed portion of the door or possess an approved secondary lock mounted on interior of moveable section.
The lock bolt on all glass patio doors shall engage the strike sufficiently to prevent its being disengaged by any possible movement of the door within the space or clearance provided for installation and operation. The strike area shall be of material adequate to maintain effectiveness of bolt strength.