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<br />Climate Zones 4 5 6
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<br />TABLE 6C,1 : PRESCRIPTIVE REQUIREMENTS FOR SMALL ADDITIONS (600 Sq, Fland Less), RENOVATIONS TO EXISTING BUILDINGS AND SITE-INSTALLED COMPONENTS OF MANUFACTURED HOMES,
<br />
<br /> MINIMUM INSTAllED
<br /> EQUIPMENT EFFICIENCY EFFICIENCY
<br />~ Central AlC - Split SEER = 10.0 SEER = ~
<br />:z
<br />:::; -Single Pkg, SEER = 9.7 SEER = -
<br />8 Room unit or PT AC EER = 8.5* EER =
<br />u -
<br /> Electric Resistance ANY
<br />~ Heat pump - Split HSPF = 6.8 HSPF = 7, ()
<br />:z -
<br />~ - Single Pkg, HSPF = 6.6 HSPF = -
<br />:I: Room unit or PTHP COP = 2.7* HSPFI =
<br />w -
<br />~ COP
<br />a.. Gas, natural or propane
<br />en AFUE = .78 AFUE =
<br /> -
<br /> Fuel Oil AFUE = ,78 AFUE = -
<br />a: Electric Resistance EF = .88 EF =,~
<br />~w
<br />o!;;: Gas; Natural or L.P, EF .54 EF
<br />:I:;: = = -
<br /> Fuel Oil EF = .54 EF =
<br />
<br />. See Table 6-3,6-7
<br />
<br /> MINIMUM INSULATION
<br /> COMPONENT INSULATION INSTAllED
<br /> Concrete R-5 -r
<br />en Frame, 2" x 4" R-11
<br />...J Frame, 2' x 6' R-19
<br />...J
<br />~ Common, Frame R-11
<br /> Common, Masonry R-3
<br />" Under Allic R-30 .30
<br />z Single Assembly; enclosed R-19
<br />:J
<br />jjj Single Assembly; Opened R-10
<br />U Common, Frame R-11
<br />en Slab-on-grade No Minimum tV
<br />a: Raised Wood R-11
<br />0
<br />9 Raised Concrete R-5
<br />u. Common, Frame R-11
<br />l- I. lp
<br />u In unconditioned space R-6
<br />:::::>
<br />0 In conditioned space No minimum
<br />
<br />TABLE 6C-2: PRESCRIPTIVE REQUIREMENTS FOR GLASS AREAS IN ADDITIONS ONLY
<br />
<br />Maximum percentage glass to floor area allowed is selected by type, overhang length, and shading coefficient. Maximum%- ~u Installed % - '2..!7'; 7
<br />GLASS TYPE, OVERHANG, AND SHADING COEFFICIENT REQUIRED FOR GLASS PERCENTAGE ALLOWED
<br />UP TO 20% UP TO 30% UP TO 40% UP TO 50%
<br />Single Double Single Double Single Double Single Double
<br />OH-SC OH-SC OH-SC OH-SC OH-SC OH-SC OH-SC OH-SC
<br />1'- 1.0 0'- .90 2"- 1,0 1', .90 3'- 1,0 2"- .90 4"- 1.0 3'- .90
<br />0'- ,86 1"- .86 0'- ,70 2'- ,86 1'- ,70 3'- .86 2"- .70
<br /> 0'. ,65 1'0.65 0'- ,50 2'- .65 1'- .50
<br /> 0'- .45 1'- .45 0"- ,40
<br /> 0'- ,35
<br />Shading coefficients (SC) may be obtained from the manufacturer. Single clear SC = 1,0, double clear SC = .90, and single tint SC = .86,
<br />TABLE 6C-3 I MINIMUM REQUIREMENTS FOR ALL PACKAGES
<br />COMPONENTS SECTION REQUIREMENTS CHECK
<br />Exterior Joints & Cracks 606,1 To be caulked, gasketed, weather-stripped or otherwise sealed, X.
<br />Interior Joints & Cracks 606,1 All openings in interior surfaces of ceilings and exterior walls must be sealed. "
<br />Sole & Top Plates 606.1 Sole plates and penetrations through top plates of exterior walls must be sealed. /'
<br />Infiltration Barrier 606.1 Infiltration barrier must be installed in exterior walls & raised wood floors. ^-.
<br />Fireplaces 606.1 Fireplaces must have flue dampers, glass doors and outside combustion air intakes, D1T
<br />Exhaust Fans 606.1 Exhaust fans vented to unconditioned space shall have dampers, except for combustion /Vii
<br /> devices with integral exhaust ductwork,
<br />Combustion 606.1 Combustion space and water heating systems must be provided with outside combustion air, ~
<br />Heating except for direct vent appliances,
<br />Water Heaters 612.1 Comply with efficiency requirements in Table 6-11, Switch or clearly marked circuit breaker (electric) '"
<br /> or cutoff (gas) must be provided, External or built-in heat trap required,
<br />Swimming 612.1 Spas & heated pools must have covers (except solar heated), Non-commercial pools must have a pUfr
<br />Pools & Spas pump timer. Gas spa & pool heaters must have minimum thermal efficiency of 78%.
<br />Hot Water Pipes 612.1 Insulation is required for hot water circulating systems, (including heat recovery units) and the first ~
<br /> 8" of piping from the water heater (or until piping enters an insulated wall or slab),
<br />Shower Heads 612.1 Water flow must be restricted to no more than 3 gallons per minute at 80 PSIG, Ai II
<br />HV AC Duct 610.1 All ducts, fillings, mechanical equipment and plenum chambers shall be mechanically attached,
<br />Construction, sealed, insulated and installed in accordance with the criteria of Section 610,1, Ducts in allics must be 'f.
<br />Insulation & Installation insulated to a minimum of R-6, Air handlers shall not be installed in attics unless in mechanical closets.
<br />HV AC Controls 607,1 Separate readily accessible manual or automatic thermostat for each system. r
<br />
<br />GENERAL DIRECTIONS:
<br />1. On Table 6C-1 indicate the R-value of the insulation being added to each component and the efticiency levels of the equipment being installed, All R-values and efticiencies installed must meet or exceed the minimum values
<br />listed. Components and equipment neither being added nor renovated may be left blank.
<br />2. ADDITIONS ONLY, Determine 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-
<br />vertical roof glass and add it to the previous total. When glass in existing exterior walls is being removed or enclosed by the addhion, an amount equal to the total area of this glass may be subtracted from the total glass area,
<br />Divide the adjusted glass area total by the condhioned floor area of the addhion. Multiply by 100 to get the percent. Find the largest glass percentage under which your calculated percentage falls on Table 6C-2, Prescriptives
<br />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
<br />windows and doors previously in the exte~or walls of the house and being reinstalled in the addition, do not have to comply with the overheng and shading coefficient requirements on Table 6C-2, All new glass in the addition
<br />must meet the requirement for one of the options in the glass percentage category you indicated. The overhang (OH) distance is measured perpendicularly from the face of the glass to a point directly under the outermost edge
<br />of the overhang.
<br />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
<br />edge does not extend further then 8 feet from the overhang. Glass areas being renovated that do not meet this criteria must be ehher single-pane tinted, double-pane clear or double-pane tinted,
<br />4. Completa the information requested on the top half of page 1.
<br />5, Read "Minimum Requiremants for Small Additions and Renovations", Table 6C-3, and check all applicable items,
<br />6. Read, sign and date the "Owner/Agent" certification statement on page 1.
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