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detection svstem and the exit is an a roved smoke ro f enclosure or ressurized <br /> stairwa � 3 where an existin fire esca e conformin to the buildin code listed in <br /> Cha ter 8 is rovided in addition to the sin le exit• and 4 where ermitted b the <br /> building code listed in Chapter 8. <br /> (eee)702.6 — Stairwa s, handrails and uards: Ever exterior nd interior fli ht of stairs <br /> ha�in more than four risers and ever o en ortion of stair landin or balcon <br /> which is more than 30 inches 762mm above the floor r rade below shall have <br /> uards. Handrails shall not be less than 36 inches 762 nor mare than 42 inches <br /> (1067mm�high, measured vertically above the nosing of the tread or above the <br /> finished floor of the landin� or walking surfaces. Guards shall not be less than 36 <br /> inches (762mm) hi�h above the floor of the landin ar� b�y and shall have <br /> intermediate rails balusters or other construction such th t a s here with a diameter <br /> of 6 inches cannot pass through any opening_ <br /> (ff� 702.6.1. — Stairs and orches: Ever stair orch fir esca e balcon and all <br /> a urtenances attached thereto shall be constructed so as to be safe to use and <br /> ca able of su ortin the antici ated loads and shall be maintained in sound <br /> condition and ood re air free of deterioration. The aximum riser hei t for <br /> ste s shall be 9 inches and the minimum tread de th shall be 8 inches with variation <br /> not exceedin 3/4 inch in the de th of ad'acent treads or in the hei ht of ad'acent <br /> risers. <br /> (ggg) 704.2 — Smoke Detectors. 1 Ever dwellin unit shal be e ui ed with ai_least , <br /> one a roved smoke detector in an o eratin condition w'thin 15 feet of ever�� room ' <br /> used for slee in u oses. The detector shall be installe on the ceilin and a� least '�, <br /> 6 inches from an wall or on a wall located between and 12 inches frum the '�� <br /> ceilin measured to the to of the detector. All smoke d tectors shall be a sroved <br /> and listed and shall be installed in accordance with the anufacturers instruc�tions. <br /> �2 Every single familx residence shall have at least on��_proved smoke detector ,� . <br /> installed on ever�y of the dwellin� unit, includin��sements but not including u; <br /> unoccupied attics. In dwelling units with split levels, a s�ioke detector installed on ; i <br /> the u er level shall suffice for the ad'acent lower leve if the lower level is less � <br /> than one full stor below the u er level• however if th re is an intervenin door �� <br /> between the ad'acent levels a smoke detector shall be i stalled on each level. 3 � <br /> Ever structure which i contains more than one dwelli unit or ii contains at <br /> least one dwellin unit and is a mixed-use structure hall contain at least one � <br /> a roved smoke detector at the u ermost ceilin of ea h interior stairwell. The i <br /> detector shall be installed on the ceilin , at least 6 inches rom the wall or on a wall <br /> located 6 to 12 inches from the ceilin measure to the to of the detector. , <br /> (hhh) 704.5 Carbon Monoxide Alarm Detectors. Definitio s: i "A roved carbon <br /> monoxide alarm" or "alarm" means a carbon monoxide alarm that com lies with all <br /> the requirements of the rules and re�ulations of the Illinoi State Fire Nlarshal bears i, <br /> the label of a nationall reco nized testin laborato a d com lies with the most <br /> recent standards of the Underwriters Laboratories o the Canadian Standard <br /> Association. ii Dwellin Unit. A room or suite o rooms used for human <br /> habitation and includes a sin le famil residence as we 1 as each livin unit of a <br /> multiple family residence and each living unit in a mixed use buildin .�(iii) Section <br /> 1_. Carbon Monoxide Detector. (a) Every dwelling unit shall be equipped with at <br />