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Federal Register / Vol.56,No.44 / Wednesday,March 6,1991/Rules and Regulations NO7 Requhement 4. Accessible route into sad through the (5) Exterior deck,patio,or balcony surfaces an no more than covered dwelling unit. 1/2 inch below the floor leveler the interior of the y dwelling unit,unless they am constructed of impervious Section 100.205(0X3Xi)provides that all covered melds- material such u concrete,brick or flagstone.In such au, mily dwellings with a building entnna on all accessible the surface is no more than 4 inches below the floor level route shall be designed and aauauaed in such a manner of the interior of the dwelling unities tower if required by that ell premiss within covered multifamily dwelling units loaf building code. contain an aassibk route into and through the coveted dwelling unit. (6) At the primary entry door to dwelling coda with direct exterior access,outside Siding surfaces constructed of Oxidant impervious materials such as concrete,brick or flagstone, ate Donors that.12inch below the floor level of the Accessible mutes into and through dwelling units would interior of the dwellingunit.The finished surface of this meet section 100.205(0(3)0)if: area that S located Immediately outside the entry may be sloped,uptol/81nch per foot(12inches),fordrainage. (I) A minimum clear width of36 inches is provided. Requirement 5. Light switches,electrical outlets.therm- (2) In single-story dwelling units,changes S level within the oats and other eMsahmeeul coelmis in acttadble bat• dwelling unit with heights between 1/4 hid and 12 inch dnw are beveled with a slope no greater than 1:2.Extender design features,such ass loiter an area on a different level Section 100.205(c)(3)(u)requires that all covered multfa- withina room(e.g.,*sunken livin;toom),changeein mily dwe0inpwith a building unlace on an accessible level greater than 12inch are nmpedor have othermeset nun shall be designed Ind constructed Satoh a manner of access.Where a single story dwelling unit hasspecial that all premiss within covered multifamily dwelling units design futures,all portions of the single-story unit,except contain light switches,eieculal outlets,thermostats,and the loiter the sunkenornised area,neon an accessible other environmental controls to accessible locations. route;and Gukelbse (a) In seigic-awry dwelling units with lofts,all spaces other (ei than the loft are on inaccessible route. Light switches.electrical outets.therhmcermaand other ea- v en- vironmental comrole would meet action 100.205(cX3)(11) (b) Design features such as sunken ionised functionalifopenblepntsof the comelserelocaedno higher than areas do not interrupt the saeWbk mute through the 48 inches,and no lower than 15 inches,above the floor.If remainder of the dwelling unit. the reach is over an obstruction(for example,anwmbaog- ingshelf)between 20 and 25 inches in depth,the mail- (3) In multistory dwelling units in building with elevators,the mum height is reduced to 44 inches for fmwmd approach; story of the unit that is servedby the buildingelevator(e) or46 inches for side approach,provided theobshhrction is the primary entry to the unit,(b)complis with Require- (for example,skitchenbaaabi et)isnomorethan24 ments2through7 with respect to the rooms located on the inches in depth. Obstructions should not extend more than entry/uassible floor,and(c)contains a bathroom or 25 inches from die wall beneath acontrol.(See Fig.2.) powder mom which complies with Requitement 7. (Note: multistory dwelling units in non-elevator buildiop Are not Akre coveted dwelling units because,in such teas,there a no Controls a ousel that do not satisfy these specifications ground floor unit.) are acceptable provided that comparable controls or outlets (Le.,that perform the same hmniom)are provided within (4) Except a provided in paragraphs(5)and(6)below, the tame area and are aazdble,in accordance with this thresholds at exterior doors,indnflng sliding door train, guideline for Requirement 5. arena higher than 3/4 Inch.Thresholds and changes in level at these locations are beveled with'slope no greater than 1:2. L