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Climate Zones 4 5 6 TABLE 6C.l : PRESCRIPTIVE REQUIREMENTS FOR SMALL ADDmONS (600 Sq, A. and less), RENOVATIONS TO EXISTING BUILDINGS AND SITE-INSTALLED COMPONENTS OF MANUFACTURED HOMES. MINIMUM INSTALLED EQUIPMENT EFFICIENCY EFFICIENCY Central AlC - Split SEER = 10.0 SEER = - C) z -Single Pkg. SEER = 9.7 SEER = ::::; - 0 Room unit or PT AC EER 8.5* EER 0 = = - u Electric Resistance ANY C) Heat pump - Split HSPF = 6.8 HSPF = - z - Single Pkg. HSPF 6_6 HSPF ~ = = - I Room unit or PTH P COP = 2.7* HSPFI = - w COP ~ "- Gas, natural or propane AFUE = .78 AFUE = en - Fuel Oil AFUE = .78 AFUE = - a: Electric Resistance EF = _88 EF = -~ I- W o!;;: Gas; Natural or L.P. EF = .54 EF = I;s: - Fuel Oil EF = .54 EF = * See Table 6-3,6-7 MINIMUM INSULATION COMPONENT INSULATION INSTALLED Concrete Block R-5 en Frame, 2' x 4' R-ll R-tl ...J Frame, 2' x 6' R-19 ...J <( Common, Frame R-ll 3: Common, Masonry R-3 Under Attic R-30 en Single Assembly; Enclosed C!J Frame R-19 z :J Metal Pans R-13 a.-t~ w Single Assembly; Open R-l0 () Common, Frame R-ll en Slab-on-grade No Minimum -- II: Raised Wood R-ll 0 0 Raised Concrete R-5 ...J Common, Frame R-ll u. I- In unconditioned space R-6 g,(o () :::> In conditioned space No minimum - 0 TABLE 6C-2: PRESCRIPTIVE REQUIREMENTS FOR GLASS AREAS IN ADDITIONS ONLY Maximum percentage glass to floor area allowed is selected by type, overhang length, and shading coefficient. Maximum%- Installed %- /.7 GLASS TYPE, OVERHANG, AND SHADING COEFFICIENT REQUIRED FOR GLASS PERCENTAGE ALLOWED UP TO 20% UP TO 30% UP TO 40% UP TO 50% Single Double Single Double Single Double Single Double OH-SC OH-SC OH-SC OH-SC OH-SC OH-SC OH-SC OH-SC 1'-1.0 0'- .90 2'-1.0 1'- .90 3' -1.0 2'-.90 4' -1.0 3'- .90 0'- .86 1'- .86 0'- .70 2'- .86 1'- .70 3'- .86 2'-.70 0'- .65 1'- .65 0'- .50 2'- .65 1'- .50 0' -.45 l' -.45 0'- .40 0'- .35 SHGC or SC may be obtained from the manufacturer. Single clear SC = 1.0, double clear SC = .90, and single tint SC = .86. SHGC .;- .87=SC TABLE 6C-3 I MINIMUM REQUIREMENTS FOR ALL PACKAGES COMPONENTS SECTION REQUIREMENTS CHECK Exterior Joints & Cracks 606.1 To be caulked, aasketed, weather-stripped or otherwise sealed. t./ Exterior Windows & Doors 606.1 Max. 0.3 cfm/sq.ft. window area; .5 cfm/sq.ft. door area. V Sole & Top Plates 606.1 Sole plates and penetrations through top plates of exterior walls must be sealed. ......... Recessed Lighting 606.1 Type IC rated with no penetrations (two alternatives allowed). - Multi-story Houses 606.1 Air barrier on perimeter of floor cavity between floors. -- Exhaust Fans 606.1 Exhaust fans vented to unconditioned space shall have dampers, except for combustion devices with integral exhaust ductwork. _. Combustion 606.1 Combustion space and water heating systems must be provided with outside combustion air, HeatinQ except for direct vent aooliances. -- Water Heaters 612.1 Comply with efficiency requirements in Table 6-12. Switch or clearly marked circuit breaker (electric) -- or cutoff (aasl must be orovided. External or built-in heat trao reauired. Swim"rning 612.1 Spas & heated pools must have covers (except solar heated). Non-cornmercial pools must have a - Pools & Spas purnp timer. Gas spa & pool heaters must have minirnum therrnal efficiency of 78%. Hot Water Pipes 612.1 Insulation is required for hot water circulating systems (including heat recovery units). - Shower Heads 612,1 Water flow must be restricted to no more than 2.5 gallons per minute at 80 PSIG. - HV AC Duct 610,1 All ducts, fittings, mechanical equipment and plenum chambers shall be mechanically attached, Construction, sealed, insulated and installed in accordance with the criteria of Section 610.1. Ducts in attics must be V Insulation & Installation insulated to a minimum of R-6. HV AC Controls 607.1 Separate readily accessible manual or automatic thermostat for each system. -- GENERAL DIRECTIONS: 1. On Table 6C-1 indicate the R:value of the insulation being added to each component and the efficiency levels of the equipment being installed. All R-values and efficiencies installed must meet or exceed the minimum values listed. Components and equipment neither being added nor renovated may be left blank. 2. ADDITIONS ONLY. Detennine the percentage of new glass to conditioned floor area in the addition as follows. Total the areas of all glass windows, sliding glass doors and glass door panels. Double the area of all non- vertical roof glass and add it to the previous total. When glass in existing exterior walls is being removed or enclosed by the addition, an amount equal to the total area of this glass may be subtracted from the total glass area. Divide the adjusted glass area total by the conditioned floor area of the addition. Multiply by 100 to get the percent. Rnd the largest glass percentage under which your calculated percentage falls on Table 6C-2. Prescriptives are given by the type of glass (Single or Double pane) and the overhang (OH) paired with a shading coefficient (SC). For a given glass type and overhang, the minimum shading coefficient allowed is specified. Actual glass windows and doors previously in the extenor walls of the house and being reinstalled in the addition do not have to comply with the overhang and shading coefficient requirements on Table 6C-2. All new glass in the addition must meet the requirement for one of the options in the glass percentage category you indicated. The overhang (OH) distance is measured perpendiculany trom the face of the glass to a point directly under the outennost edge of the overhang. 3. RENOVATIONS ONLY. Replacement glass needs to meet the following requirements. Any glass type and shading coefficient may be used for glass areas which are under at least a two foot overhang and whose lowest edge does not extend further than 8 feet from the overhang. Glass areas being renovated that do not meet this criteria must be either single-pane tinted, double-pane clear or double-pane tinted. 4. BUILDING SYSTEMS. Comply when new system is installed for system installed. 5. Complete the infonnation requested on the top half of page 1. 6. Read "Minimum Requirements for Small Additions and Renovations", Table 6C-3, and check all applicable items. 7. Read, sign and date the "Owner/Agenr' certification statement on page 1. -2-