2018-02-12-minutes-cds-study-session

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ENER43Y EFFICIENCY '% RATED DESIGN. A description of the proposed building THERMAL ISOLATION. Physical and space conditioning used to determine the energy rating index. separation from conditioned space(s). The conditioned READILY ACCESSIBLE. Capable of being reached quickly space(s) shall be controlled as separate zones for heating and for operation, renewal or inspection without requiring those to. cooling or conditioned by separate equipment, whom ready access is requisite to climb over or remove obsta THERMOSTAT. An automatic control device used to main - cies or to resort to portable ladders or access equipment (see, tai em ature_at a fixed ur adjustable set point. "Accessible"). UFACTOR (THERMAL TRANSMITTANCE) The coefi3- REPAIR. The reconstruction or renewal of any part of an existing building for the purpose of its maintenance or to cor- rect damage. For definitions applicable in Chapter 11, see Section N1101.9. REROOFING. The process of recovering or. replacing an existing roof covering. See "Roof recover" and "Roof replacement" RESIDENTIAL. BUILDING. For this chapter, includes detached one- and two-family dwellings and multiple single- family dwellings (townhouses) as well as Group R-2, R-3 and R-4 buildings three stories or less in height above grade plane. ROOF RECOVER. The process of installing an additional roof covering over a prepared existing roof covering without removing the existing roof covering. ROOF REPAIR. Reconstruction or renewal of any part of an existing roof for the purposes of its maintenance. ROOF REPLACEMENT. The process of removing the existing roof covering, repairing any damaged substrate and installing a new roof covering. R -VALUE (THERMAL RESISTANCE). The inverse of the time rate of heat flow through a body from one of Its bounding surfaces to the other surface for a unit temperature difference between the two surfaces, under steady state conditions, per unit area (h • ft' - °F/Btu) [(m2 - K)/W1. SERVICE WATER HEATING. Supply of hot water for pur- poses other than comfort beating. SKYLIGHT. Glass or other transparent or translucent glazing material installed at a slope of less than 60 degrees (1.05 rad) from horizontal. Glazing material in skylights. including unit skylights, solariums, sunrooms, roofs and sloped walls is included in this definition. SOLAR HEAT GAIN COEFFICIENT (SHGC). The ratio of the solar heat gain entering the space through the fenestration assembly to the incident solar radiation, Solar heat gain includes directly transmitted solar heat and absorbed solar radiation that is then reradiated, conducted or convected into the space. STANDARD REFERENCE DESIGN. A version of the pro- posed design that meets the minimum requirements of this code and is used to determine the maximum annual energy use requirement for compliance based on total building perfor- mance. SUNROOM. A one-story structure attached to a dwelling with a glazing area in excess of 40 percent of the gross area of the structure's exterior walls and roof. ciient of heat tram mission (air to air) through a building compo- nent or assembly, equal to the time rate of heat flow per unit area and unit temperature difference between the warm side and cold side air films (Btu/h • ft? - 'F) f WI(m2 - K)1. VENTILATION AIR. That portion of supply air that comes from outside (outdoors) plus any recirculated air that has been treated to maintain the desired quality of air within a designated space. VISIBLE TRANSMITTANCE [VT1. The ratio of visible light entering the space through the fenestration product assembly to the incident visible light, Visible Transmittance, includes the effects of glazing material and frame and is expressed as a number between and 1. WHOLE HOUSE MECHANICAL VENTILATION SYS- TEM. An exhaust system, supply system, or combination thereof that is designed to mechanically exchange indoor air with outdoor air when operating continuously or through a programmed intermittent schedule to satisfy the whole house ventilation rates. ZONE. A space or group of spaces within a building with heat- ing or cooling requirements that are sufficiently similar so that desired conditions can be maintained throughout using a single controlling device, N1101..7 (8301,1) Climate zones. Climate zones from Fig- ure N1101.7 or Table N1101.7 shall be used in determining the applicable requirements in Sections NIIOI through N1 Ill. Locations not in Table N1101.7 (outside the United States) shall be assigned a climate zone based on Section N101.10.2. N1101.7.1 (8301.2) Warm hutaiid caunties. Warm humid counties are identified in Table N1101.7 by an asterisk. N1101.7.2 (R301.3) International climate zones. The ji climate zone for any location outside the United States shall be determined by applying Table N1101.7,2(1) and then Table N1101.7.2(2). N1101,8 (8301,4) Tropical elimate zone, The tropical cli- mate zone shall be defined as: 1. Hawaii, Puerto Rico, Guam, American Samoa, US Vir- gin Islands, Commonwealth of Northern Mariana Islands; and 2. islands in the area between the Tropic of Cancer and the Tropic of Capricorn. 2015 INTERNATIONAL RESJR1IDENTIAL CODE* 439 - Cnpydght4D2at41CC AURICHTSRP.SERVEM Ace. dby Mshnd Flaryan Mu4,selfia:39:sa PM purswntto Lkenu Agceemmtwitb ICC. Nofurdturepmductionor dist.ibudon wthuriwd. ANY UNAUTHORIZED REPRODUCTION OR DISfRIEUTIONISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SURIECI'TO CIVIL. AND CRIMINAL PFNALTIES THEREUNDER.