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�», � <br /> HIGHLIGHTS OF THE UNiFO�tM <br /> BUILDING COIDE CHANGES FOF� 1991 <br /> :`� ' (As Applicable to Residential Construction R-3 Occupancies) <br /> ��'.:. <br /> . ' • <br /> Smoke Detectors-Section 1210 UBC <br /> �ection 1210(a)2 <br /> Addidon�,alterations or repain to Gmup R Oeeupanciw. Whcn tho valuation of an addiGon,altention or repau ezceede <br /> 51,000 and a pecmit is required,or when one or moro sleeping rooms aro added or creamd in wcis[ing Group R Occupaneies, <br /> �moke detecWn ahall be'vu4lled in aecordanee with Subseetions 3,4 8c 5 of Section 1210 UBC. <br /> Section 1210(a)3 � p wer£rom the buildin <br /> Power source. In new coms'.ruction uired smoke detectors shall ceceive their rimary po 8 <br /> wiring when such wiring is servel from a cnmmercial source�^��hall be eauio[ed with a batterr backuo. <br /> The detector sh�ll anit a si¢nal when the batteries are low. Wiring shall be parmanenc and without a <br /> disconnecting switch other than thou required for overcuRent protection. Smoke detectots may be solely batter� <br /> opented when installed ia ezisting buildings; or in buildings without commercial power, or in buildings which <br /> undergo altentians, repaics or additioos regnlated by Subs�ction 2 of this section. <br /> S�ection i210(a)4 ' � <br /> Location within dwelling units. In dweiling units a detector shall be installed in each sleeoin¢room and at a <br /> point centrally located in the corridor ar area giving access to each sepacate sleeping area. (Remainder of section <br /> unchanged) <br /> Guardrails-Section 1712 UBC <br /> S�ection 1712(al <br /> Opea guardrails shall have intermediate nils or omamental pattem such that a�phere 4 inches in diameter may <br /> not pass Uuough. <br /> Ezception M2: <br /> 'Ibe triangular opeuings formed by lhe riset, trwd and bottom element of a guardrail at the open side of a stairway <br /> may be of such siu that a sphere 6 inches in diameter cannot pass tbron6h• <br /> Doors-Section 3304 f �� <br /> Section 3304(il Exception 1.B <br /> A door may opea at a landing that is not more than 8 inches lower tl�an the floor level, provided the door does <br /> �pt�win¢over the land'ne. <br /> Safety Glazing-Section 5406 <br /> ,�ection 5406(d)6 <br /> Glazing in fix�d or ooerable panels adjacent to a door where the nearest exoosed edze of the¢lazin¢is�thin <br /> a 24 inch arc of either vertical edee of the door in a closed nosition and where the bottom ezposed edge of the <br /> glazing is less thaa 60 inches above the walking surfaca . <br /> Quesflons! Ca11259-8810 ' <br /> UBG91 <br />