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Home My WebLink About1990/10/08 Board of Appeals & Advisors Agenda Packet (3) -ì~ ",,-L D ~. 1_., .-..,- :Ir.a.œ Sec:tl_ 1.5 - trl__ 2-5361 to 2-53'.: '1M ri.~ Gea.ratlOA b81dou>t1a1. p --........ Contains the residential standards, first impl..-ented in 1978, and applicable to all ho~e1s/motels and to apartment buildings of four or more stories in height. Chapter .-10: Duct" aDd r1.eD_. This chapter of the State Mechanical. Code wholly adopts Chapter 10 of the Uniform Mechanical Code. nr.e CoiIImission has adopted Section 1002 - Duct Const~ioo and Section 1005 - Ðuct Insulation. 1.5. Basic Approacbes to Compliance There are two options for deøc&stratinq that a building meets the requirements of the stanclard!.s: t!r.e prescriptive approach and the performance approach. J:o either event, compliance must be shown with the ....."data"!" measures. The flow chart in Figure ].-2 ~ tt!r.e steps involved in each approach. Either approa~ ~ demonstrate compliance. Two approaches are provided tCÐ mæ>a:imi.z:e diesign flexibility. The following sections die,,,:r±.be tire d±.fferences between each approach. , f= I " " . , I I , . , I I I I , I , I .... - ..... ~~ ~ I I I I ""'",,",.-- -- -, " riljUre 1-2: second Gene"atioD Nonresidential Standards r10w Chart . lteYised September 1988 1-9 ,. ~~ WID TO S....".·....S Section 5.1 . ~ 1==, -- ... --- ~ ~- - J~=" CF-& - ....., 1"'~=- , - .. WNC G--lI.&.,CF-m .....wAy --.. ...- ~ CF-.x ....., CI:II'a J~' -- ~ "-'" 1-.5.- , - WNC T__ -. - _III ._- "--F.B-HlI .".. ....IIE "-- TaiIDNd lPO --- 0..,." v~ - ,. I':lgure 5-1: Orqan:lzation of Compliance I'OJ:1118 and Worksheet. Revised September 1988 5-5 MANDATORY MEASURES Section 2 r 2. Mandatory Measures This chapter explains the mandatory measures that apply to all nonresidential buildings, including occupancy types still covered by the first generation standards. When the second generation standards were adopted for the first occupancy in 1984, the first generation mandatory measures were revised and relocated in the regulations. The information in this ChaDter iSø therefore, more current than information contained in the f Guides' to the first creneration standards. The mandatory features and devices must be included in the building design whether compliance is shown by the prescrip- tive or the performance approach. These features have been proven cost-effective over a wide range of building occupancy types and by independent analyses. Many of the mandatory measures have been adopted from nationally recognized codes ( and standards, such as ANSI/ASHRAE 90A-80 and the NCSBCS Model Enerav Code. All construction work in conditioned buildings must conform to the .mandatory measures in force at the time of the permit application for the work. The only exception to this is first tenant improvements, which may be completed under the mandatory measures in force at the time of the base building permit (See Section 1. 6.2. above) . The mandatory measures presented in this chapter are organized in three categories, as follows: · Envelope Measures · Lighting Systems Measures · HVAC and Plumbing Systems Measures It is worthy to note that many of the mandatory features and devices are requirements on manufacturers of building pro- ducts. It is the responsibility of the designer, however, to specify products in the building design that meet these requirements. The installers of reaulated manufactured devices are required to post installation certificates. Local code officials, in turn, are responsible for checking that the ( mandatory features and devices are installed. l\eTised September 1988 2-1 -, ....;......... .~..;.. 11 ~"".. ~ ',;' ~'.'''. ),;:..;~$i<:.¿,.....~,.. ~..~'"., J.... .., ",~,.",'.- C;",. .".',. ~~""> ...;.i£ 0' ,'"''''{: ,,~. ..,~;"\:~:..~.,."i.' " ..,~' ~;", - ""'" ::fti;r>---. ,..: : ~ ":.{ ;''-'~;'; I , .. . "\~' I ! Prescriptive Approach' I Alternative Component Packages ~asic Design Strategies: I - ¡ Package A contains the standard building components found to be ! optimum during the development of the standards. , ì Package 8 is the same as Package A for Iow-rfse offices. For highrise - offices, it is based on daylighting and is provfded to allow more I glazing area when lighting efficiency is improved. This efficiency can . best be achieved through the use of automatic daylighting controls. I - - - I \ .:tckage C allows the use of mass exterior walls with little or no _ added insulation when the resulting added energy use is traded off I against improved lighting efficiency and added roof insulation. -r1~A\f'o)ø ¿:&>~c., ..J¢{~ . I Package 0, for retail and wholesale stores, allows greater lighting . energy, but improved lighting efficiency is required and less glazing I is allowed. For low-rise offices, Package D is parallel to Package A. I Package E applies to low-rise offices and allows additional vertical I glazing, with improved lighting efficiency. This is best achieved through automatic day lighting controls. ! Package F only applies to low-rise offices and allows ~he use of mass exterior wails with little or no added insulation if the resulting added ergy use is traded off against improved lighting efficiency and I added ceiling insulation. This package is parallel to Package C. I - .'.;i¡a¡". . . Perlormance Approach ,- ';'~' ,i- Design Flexibility · ~lI'TsliJillatfon · Gliazing · Skylights · HVAC Systems · Economizers . . · Ughting Wattages .;; :"¡'. - " 'r',' ¡ Mandatory Measures ~t. ''\(,- - . Jì¡., 16 Climate Zones .- 1<. ~.. f' ._, ~'" L "t Y':: Budget Tables .~(<:., : 'I,,;. : ,~(_:: ~{!, '. If:'_" · Lowrise Office t" . · Highrise Office - 2nd Generation .;-¡':', · Retail/Wholesale :1-:;.: · Other Occupations -1st Generation :(. ¡ '..~:-J .- ' . <f';(~.,::; ~'- .. ",.,~:"" :,.lb··, r" . ~-~. 1< ~'.' . 'Ì2.. ,"- 'fi~'~'" *{\:;' ,i\'{.j_: . . ~!,.._. .... ¡ ·~!t-'·;¡f,~' "'.'i,'"' ,. ~f" ;. ~¡~r·f·~- ',,,,,. ,,-,-,-.- . ~i/)' . '~t:¡}:";~, ::' .': '...t." I . I. I I TIlLE 24 DOCUMENTATION FOR NOH-RESIDEHTIAl BUilDING I t. Forms CF-l ~ MF-l are required on all non-residential jobs, first or second generation. Special situations such as all process load or buildings less than lOCO square feet still require CF-l and MF-l forms. BOTH PAGES OF I THE CF·t FORM MUST BE A PERMANENT PART OF WE PLANS. 2. Compliance Statement should only be si~ by the individual with overall I res,;nSibility for the design A!!SL the _11"'. Persons responsible for only the nergy cal~ulation, mechanical sys~ or electrical system should sign on Part 2 of CF-l as designers. (~~L.~ ~"'1)r¿. "~"'~""'" ~~~ . . .Jly I. l<f~b '":>~rdA I 3. Do not submit separate CF-l form for Electrical and Mechanical. Only one form is required. I 4. HYAC load calculation and equipment catalog cut s~ould be highlighted to indicate design temperature, loads, model nwnber, efficiency and other features used in documenting Title 24 coapliance. I $. Mixing compliance methods within the same area is nat attawed (f.e., if the ]f.ghting is First Generation, then the ~YAC must ae First Generation). a 1$. Œ~ce tenant improvements under First Generation (u~der G~ather Clause) $mæw]d submit the original Title 24 en.welope calcutations. ar original plan frYe muDber for the building to d~t that the Tenant [mµravements fall I urr~ First Generation. 7. The $0 called "1000 square feet eXl!!!TT]!tiorl" applie$ only m entire building not Just one tenant space in the building. The exemption applies only to I the providing of documentation. The auitding, the equipment, etc., must $tiTt comply with all requirements of Titre 24. Fo~ CF-l is required on pTams ~ith the statement "1000 square feet exemption" and signed by a I licensed architect or licensed mechanical engineer, ~ the owner. 8. Tellilnt improvements which do not invaTve if change to the building exterior · envelope, tenant space lighting, or tenant space heating or cooling - equipment need not comply with Title 24 requirements. - · I · ' . .' · June 30, 1988 - I . .,"-- , . . - PROJECTS EXEMPTED FROM THE STANDARDS " The Energy Standards generally apply to all Uniform Building Code (UBC) occupancies of Group A, B, E, Hand R which are heated or mechanically cooled for the purpose of comfort conditioning -- whether the space is directly or indirectly conditioned, or for spaces which otherwise use 10 Btuh/sf or more in energy use. The Standards also apply to buildings constructed by state and local governmental agencies (Note that the state agencies have varying enforcement requirements, check with the agency first). The following buidling types need not comply with the Energy . Standards (i.e.: Title 24 Chapter 2-53): l. Qualified historical buildings, to the extent provided under the State Historical Building Code (Title 24, Part 8). 2. Group I and M occupancies, which include such buildings as hospitals, nurseries for the full-time care of children, nursing homes, and prisons. , 3. Federal buildings proposed in the State of California. 4. Buildings in which no energy for space heating, space cooling, water heating, cr lighting is derived from - depletable energy sources (e.g. fossil fuels, nuclear). '",',- ~,'. 1!'" ;~~, PROJECTS EXEMPTED FROM DOCUME5TA'Il"ION ~¡. ~,..};,;,. <. The following buildings are not exempted from the Energy Standards, only the typical compliance documentation and/or calculations (e.g. compliance forms, computer run printouts, , etc.) are not required to be submitted to the building ,-\:" official and' incorporated on the plans. '!fi: ;!;ti;.The two exceptions to documentation as outlined above apply :fJì~hto the following: ..,1'" F· 1. Nonresidential buildings that have no more than 1000 sf :'i of conditioned floor area and an occupant load of 49 !~j~~~~} - persons or less. ," 2. Seasonally occupied agricultural housing limited by a " state or federal agency contract to occupancy not more than 180 days in any calendar year.