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TABL!; 6B-1' 'MINIMUM REQUIREMENTS COMPONENTS PACKAGES FOR NEW CONSTRUCTION A B C D E F Max.%of glass to Floor Area 15% 15% 20% 20% 25% 25% C/) Type Single Clear (SC) Single Tint (ST) Single Tint (ST) Single Tint (ST) Double Tint (DT) Double Tint (DT) C/) :s (!) Overhang 2' 2' 2' 2' 2' 2' Masonry EXTERIOR AND ADJACENT MASONRY WALLS R-5 C/) COMMON MASONRY WALLS R-3 EACH SIDE. ....I ....I <( 3: Wood EXTERIOR, ADJACENT, AND COMMON WOOD FRAME Frame WALLS R-11 CEILINGS CEILINGS UNDER ATTIC R-30. FRAME COMMON CEILINGS R-11. (NO SINGLE ASSEMBLY CEILINGS ALLOWED) C/) Slab-Qn.Grade R-O a: 0 Raised Wood R-11 (ONLY STEM WALL CONSTRUCTION ALLOWED) 0 ....I Raised Concrete R-5 u. DUCTS R-6 R-6 CONDo R-6 R-6 R-6 SPACE COOLING (SEER) 11.1 10.0* 10.0* 10.5 10.0* 10.9 ~ Elect. (HSPF) STRIP 6.8* 6.8* 7.3 6.8* 7.6 <( w Gas/Oil (AFUE) MINIMUM OF .73 (Direct heating) or .78 (Central) I a: Electric EF .90 EF .90 EF .90 EF .90 NOT ALLOWED EF .90 w::i: Resistance ** (SEE BELOW) !;(w Gas & Oil ** MINIMUM EF OF .54 NATURAL GAS ONLY 3:tn ~>- (SEE BELOW) OC/) I Other Any of the following are allowed: dedicated heat pump, heat recovery unit or solar system. Climate Zones 4 5 6 TO BE INSfALLErl ~ % DC: 0 DT: 0 )-- FEET EXT: R= Q ADJ: R= S- COM: R- 5" EXT: R= II ADJ: R= II COM: R= UNDER ATTIC: R = 30 COMMOM: R- R= D R- R- R= (0 CONDo 0 SEER - (O COP= - or HSPF='''I iO AFUE - EF= ~ '11 EF= DHP: ~ EF= - HRU: SOLAR: 0 EF= - Single package untls minimum SEER=9.7, HSPF = 6.6. Minimum efficiencies for gas and electric hot water systems apply to to 40 gallon water heaters. Refer to Table 6.11 for minimum Code efficiencies for oil water heaters and other sizes. DESCRIPTION OF BUILDING COMPONENTS USTED Percent 01 Glass to Floor Area: This percentage is calculated by dividing the total of all glass areas by the total conditioned floor area. Overhang: The overhang is the distance the roof or soffit projects out horizontally from the face of the glass. All glass areas shall be under an overhang of at least the prescribed length with the following exceptions: 1) glass on the gabled ends of a house and 2) the glass in the lower stories of a muiji.story house. Wall, Ceiling and Floor Insulation Values: The R.values indicated represent the minimum acceptable insulation level added to the structural components of the wall, ceiling or floor. The R-value of the structural building materials shall not be included in this calculation. 'Common" components are those separating condtlioned tenancies in a multifamily building. 'Adjacenf components separate conditioned space from unconditioned but enclosed space. 'Exterior" components separate conditioned space from unconditioned and unenclosed space. Floor: Slab-on.grade floors without edge insulation are acceptable. Raised wood floors shall have continuous stem walls with insulation placed on the stem wall or under the floor. Ducts: 'CONDo indicates that the ducts must be installed within the conditioned space; that is, the ductwork shall be located on the conditioned side of the insulation. Ducts in conditioned space are acceptable for any prescriptive package. Space Cooling System: Cooling systems shall have a Seasonal Energy Efficiency Ratio (SEER) for central units or Energy Efficiency Ratio (EER) for room units or PTAC's equal to or greater than the prescribed value. Electric Space Healing Option: Heat pump systems shall be rated with a Heating Seasonal Performance Factor (HSPF) equal to or greater than the prescribed HSPF. Heat pump systems may contain electric strip backups meeting the criteria of section 608.1.ABC.3.2.2. No electric resistance space heat is allowed for these packages. Electric Resistance Hot Water Option: For packages designated 'Not Allowed", an electric resistance hot water system may be installed only in conjunction with one of the 'Other Hot Water System Options"'. See below. Other Hot Water System Options: Any dedicated heat pump, heat recovery unit, or solar hot water system with an EF of 1.5 or higher may be installed. Solar systems must be designed to provide at least 40% of the total hot water. Electric resistance systems having an EF of .88 or greater, or natural gas systems with EF .54 or greater may be used in conjunction with these systems. TABLE 6B-21 MINIMUM REQUIREMENTS FOR ALL PACKAGES COMPONENTS SECTION REQUIREMENTS CHECK Exterior Joints & Cracks 606.1 To be caulked, gasketed, weather-stripped or otherwise sealed. "f.- Interior Joints & Cracks 606.1 All openings in interior surfaces of ceilings and exterior walls must be sealed. 1- Sole & Top Plates 606.1 Sole plates and penetrations through top plates of exterior walls must be sealed. "1- Infiltration Barrier 606.1 Infiltration barrier must be installed in exterior walls & raised wood floors. 1- Fireplaces 606.1 Fireplaces must have flue dampers, glass doors and outside combustion air intakes. #44 Exhaust Fans 606.1 Exhaust fans vented to unconditioned space shall have dampers, except for combustion 'f- devices with integral exhaust ductwork. Water Heaters 612.1 Comply with efficiency requirements in Table 6-12. Switch or clearly marked circuit breaker (electric) 7' or cutoff (gas) must be provided. External or built-in heat trap required. Swimming 612.1 Spas & heated pools must have covers (except solar heated). Non-commercial pools must have a N11 Pools & Spas pump timer. Gas spa & pool heaters must have minimum thermal efficiency of 78%. Hot Water Pipes 612.1 Insulation is required for hot water circulating systems, (including heat recovery units) and the first 'f.. 8' of piping from the water heater (or until piping enters an insulated wall or slab). Shower Heads 612.1 Water flow must be restricted to no more than 3 gallons per minute at 80 PSIG, 'f. 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 'f... Insulation & Installation insulated to a minimum of R-6. Air handlers shall not be installed in attics unless in mechanical closets. HV AC Controls 607.1 Separate readily accessible manual or automatic thermostat for each system. } -2-