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Climate Zones 4 5 6 . TABLt: 6C~ : PRESCRIPTIVE REQUIREMENTS FOR SMALL ADDITIONS (600 Sq. Fl and Less1 RENOVATIONS TO EXISTING BUILDINGS AND SITE~NSTALLED COMPONENTS OF MANUFACTURED HOMES. MINIMUM INSULATION COMPONENT INSULATION INSTALLED Concrete Block R-5 '"' U) Frame, 2' x 4' R-ll --1 Frame, 2' x 6' R-19 --1 ~ Common, Frame R-ll Common, Masonry R-3 Under Attic R-30 1~ U} Single Assembly; Enclosed (!) Frame R-19 z :J Metal Pans R-13 W Single Assembly; Open R-l0 0 Common, Frame R-ll U} Slab-on-grade No Minimum 0 a: Raised Wood R-l1 0 0 Raised Concrete R-5 --1 Common, Frame R-ll lL .- In unconditioned space R-6 It 11>' <.) :=J In conditioned space No minimum 0 MINIMUM INSTAllED EQUIPMENT EFFICIENCY EFACIENCY Central NC - Split SEER = 10,0 SEER = i!2.' co Cl z -Single Pkg, SEER = 9.7 SEER = :::; - 8 Room unit or PT AC EER = 8.5" EER = - <.) Electric Resistance ANY Cl Heat pump. Split HSPF = 6.8 HSPF = ,.0 z - Single Pkg. HSPF 6.6 HSPF ~ = = - LU Room unit or PTHP COP = 2.7* HSPFI = :I: - LU COP <.) <C a.. Gas, natural or propane AFUE = .78 AFUE = en - Fuel Oil AFUE = .78 AFUE = - a: Electric Resistance EF = .88 EF =41 I- LU 0'- Gas; Natural or L.P. EF = .54 EF = :I:~ - Fuel Oil EF = .54 EF = - * See Table 6-3, 6-7 Maximum ain coefficient. Maximum% - 6V Installed % - 1 '- .87 0'- .78 2'- _87 1 '- .78 3' - .87 2'- ,78 4' - .87 3'- _78 0'- .75 1 '- .75 0'- .61 2' - .75 1'- _61 3' - .75 2'- .61 0'- .57 l' - .57 0'- .44 2'- .57 1 '-.44 0' - .39 1'- .39 0'- .35 Get certified SHGC from the manufacturer or use defaults: Single clear SHGC = .87, double clear SHGC = .78, and single tint SHGC = .75. TABLE 6C-3 I MINIMUM REQUIREMENTS FOR All PACKAGES COMPONENTS SECTION REQUIREMENTS CHECK Exterior Joints & Cracks 606.1 To be caulked nasketed weather-strinned or otherwise sealed. 'J( Exterior Windows & Doors 606.1 Max. 0.3 cfm/snJt. window area; .5 cfm/so.ft. door area. l{ Soie & Top Plates 606.1 Sole plates and penetrations through top plates of exterior walls must be sealed. ... Recessed LiQhtinQ 606_1 Type IC rated with no penetrations (two alternatives allowed). ~.A Multi-storv Houses 606.1 Air barrier on oerimeter of floor cavitv between floors. Ad Exhaust Fans 606,1 Exhaust fans vented to unconditioned space shall have dampers. except for combustion IJtA devices with inteoral exhaust ductwork. Combustion 606.1 Combustion space and water heating systems must be provided with outside combustion air. j./D Heatino excent for direct vent aODliances. Water Heaters 612_1 Comply with efficiency requirements in Table 6-12. Switch or clearly marked circuit breaker (electric) AlA or cutoff {nasI must be nrovided, External or built-in heat tran reauired for vertical nine risers. Swimming 612.1 Spas & heated pools must have covers (except solar heated). Non-commercial pools must have a (lJ/ Pools & Soas oumo timer. Gas soa & pool heaters must have minimum thermal efficiencv of 78%. Hot Water Ploes 612.1 Insulation is reauired for hot water circulatinn svstems {includina heat recoverv unitsl. 671 Shower Heads 612.1 Water flow must be restricted to no more than 2.5 nallons oer minute at 80 PSIG. vii HV AC Duct 610.1 All ducts, fittings, mechanical equipment and plenum chambers shall be mechanically attached, X Construction, sealed, insulated and installed in accordance with the criteria of Section 610.1. Ducts in attics must be Insulation & Installation insulated to a minimum of R-6. HVAC Controls 607.1 Separate readily accessible manual or automatic thermostat for each system. ,... GENERAL DIRECTIONS: 1, Q1 Table 6C-l mcale the R-value of the insulation being added to each component and the efficiency levels of the equipment being instaned. An R-values and efficiencies installed must meet or exceed the minimum values listed. CcmponenIs and eq\.iJllllll1\ neither being added nor renovated may be left blank. 2. ADDmONS ONLY. Detemme the pertenlage 01 new glass to cooditiooed floor area in the addition as follows. Total the areas 01 all glass 1Wldows, slicing glass doors and glass door panels. DoWIe the area of all non-verticaI root glass and add n to the previous total. When glass in existing exterior walls is being removed or enclosed by the additioo, an amount ~ to the total area of this glass may be subtracted from the total glass area Divide the adjusted glass area total by the conditiooed floor area of the addition. Multiply by 100 to get the percent Fmd the iaJgesl ~percentage undeno:li-your calculated pertenlagefal!s 00 Table 6C-2. Prescriplives are given by the type 01 glass (Single or Double pane) and the overhang (OH) paired with a solar hear gain coeffident (SHGC). For a given ~ type and <welhang.1he mlllUl1l solar heat gain coefficient allowed is specified. Actual ~ass IWldows and doors previoosIyin the exterior waIs of the house and being reinstalled in the addition do net have to ~v.ilh theoverl1ang and solar heat gain coefficient requirements 00 Table 6C-2. All new glass in theaddtion mustmeetthe requirement for one of the options in the ~ percentage category you indicated. The overhang (OH) distance is measured Jl8fpeI1(jIUarly franthe face of the ~ass to a point directly lIJderthe llIiermosl edge of lI1e overhang. 3. RENOVATIONS ONLY. AePactment glass needs to meet the folov,;ng requirements. Any glass type and solar heat gain coefficient may be usedfor gass areas which are lIJder at Ieasl a two fooloverl1ang and...oose lowest edge does not extend Iurlher1ha18 feel from the overl1ang. Glass areas being renovated lhat do not meet this aileria must be either singIe-pane tilted, ~ clear or ~ tinted. 4. BUILDING SYSTEMS. ~when new system is inslalled for system installed, 5. Complete the irtormation requested on the tqJ half of page 1, 6. Read "Mininun Requirements for SrnaIl Additioos and Renovations', Table 6C-3, and check all applicable nems, 7. Read, si!1t and date the "ONnerI/v,Jld cerfification statement 00 page 1, _ 2 _