1994 023 Ordinance - Laserfiche WebLink

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CHAPTER 4 LIGHT, VENTILATION AND OCCUPANCY LIfv11TAT10NS SECTION PM-401.0 GENEAAL PM401.1 Scope: The provisions of this chapter shall govem the minimum conditions and standards for light, rcnrilurion and space for the occupmrc-y of a structure. PM401.2 Responsibility: 71ie owner of the swcture shall provide and maintain light, iTntilation and space conditions in compliance with these requirements. A person shall not occupy as owner-occupant, or permit another person to occupy any premises that do not comply with the requirements of this chap- ter. PM-4013 Alternative devices: In licu of the mcans for natural light and ventilation herein prescribed, artificial light or mechanical ventilarion complying with the building code listed in Chapter 8 shall be permitted. SECTION PfN-402.0 OEFINITIONS PM402.1 General: The following words and terms shall. for the purposes of this chapter and as stated elsewhere in this code, have the meanings shown herein. Habitab[e space: Space in a structure for living, sleeping, eating or cooking. Bathrooms, toilet compartments, closets. halls. storage or utility spaces, and similar areas are not considered habitable spaces. ppenable area: That part of a window or door which is available for unobstructed i•enrilatirni and which opens directly to the outdoors. Ventilation: The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space. SECTION PM-403.0 LIGHT PM-403.1 Habitable spaces: Every Itahirahfe spacc shall havc at least one windoµ• of approved size facing directly ta the outdoors or to a court. Thc minimum total window area, measured between stops, for every lruhitohle spuc•e shall be 8 percent of the floor area of such rcom, except in kitchens where artificial light is providcd in accordance with thc provisions of the buifdr,tq code listed in Chapter 8. Wherever walls or othcr portions of a structurc facc awindow of any room and such obstructions are located Icss than 3 fcct (914 mm) from thc window and extend to a lcvrl above that of the ceiling of the room, such windou• shall not be deemed to face directly to the outdoors nor to a court and shall not be includcd as contributing to the required minimum total window arca for the room. Ph4-403Z Common halls and stairways: Gvcry common hall and stairway, other than in one- and nrn family dk-elGngs, shall be lighted at all times with at least a 60-watt standard incandes- cent light bulb or equivalent for each 200 square fcet (19 m'-) of floor area, provided that the spacing between lights shall not be greater than 30 feet (9144 mm). Every extcrior stairway shall be illuminated with a minimum of 1 foo[candle (I I lux) at floon, landings and veads. P:1,14033 Uther spaces: All other spaccs shall lx: provided with natural or artificial light sufficient to permit the maintenance of sanitary conditions. and the safe ncrupancti• of [he space and utilization of the applianccs, eyuipmcnt and fixtures. SECTION PM-404.011ENTILATION PM-404.1 Habitabte spaces: Every iiahirable spoce shall have at least one openable window. The [otal operrah(e area of the w indow in every room shail be cyual to at least 45 pcrccnt of the minimum glazcd drea rcyuircd in Scction PM-403.1. P;VI-404.2 Bathrooms and toilet rooms: Every hothrnom and tviler room shall comply with the venrilatinn reyuirements for ltahiroble spoces as rcyuircd b}' Scction PM-404.1, cxccpc chat a window shall not be rcyuircci in spaccs cquippcd w•ith a mechanica] i•enrilutio,i system that complies with the folloµ'in€= 1. Air exhausted by a mechanical 1•errrilarion system from a bathroom within a dx•elling unii shall be cxhaustcd to thc exterior and shall not be rccirculated to any space. includ- ing the space from which such air is withdrawn. 2. Air exhausted bv a mechanical reririlotion system from all other harJlronms or rr,i!<•r rnoms shall be exhausted [o the exterior without rccirculation to any space, or not more than 85 percent of ttic cxhaust air shall be rccirculated where the s}'stem is prov idccl with effective absorption and filtering equipment. PM-403.3 Cooking facilities: Unless approved through the certificate of orcupurr<.r. cookin a sh:tll not be permitted in any runminK «nii or durmiror-x• unit. :ind a cooking facility or ap- ptiance shall not be pcrmiueLi to hc prescnt in a ruomin¢ unit or dou-nrifoiv unil. Ezception: Where spxcificallv approvccl in writing. b}' the code official. 13