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. WINTER POINT MULTIPLIERS (WPM) CLIMATE ZONES 4 5 6 6A-10 WINTER OVERHANG FACTORS (WOF) J OH RATIO I .00-.11 I .12-.17 .18-.26 .27-.35 I .36-.46 I .47--57 .58-.70 .71-.83 .84-1.18 11.19-1.72 1.73-2.73 2.74+ SINGLE PANE GLASS N toO 1.03 1.05 1.08 UO 1.13 1.15 1.18 1.20 1.24 1.29 1.34 NE/NW 1.00 1.07 1.10 1.15 1.20 1.25 1.30 1.35 1.39 1.50 1.59 1.67 E/W 1.00 _71 .57 .19 -.20 -.65 -1.05 -lA8 -2_03 -3.01 -4.06 -5.04 SE/SW 1.00 .93 .90 .80 .68 .54 .39 .22 .05 -.33 -.71 -1.01 ba: S 1.00 .95 _92 _83 _70 -54 .36 _13 -_13 -.70 -_98 -to9 ~[ DOUBLE PANE GLASS N toO 1.05 1.07 Ul U4 U8 1.21 1.24 1.28 1.34 1-40 lA7 NE/NW 1.00 1.11 U6 1.24 1.32 1.41 1.48 1.56 1.63 LBO 1.94 2.08 E/W 1.00 .88 _82 .66 .50 .31 .15 -.03 -_26 -.66 -1.10 -1.50 SE/SW 1.00 .95 .92 _85 _76 _65 .54 Al .28 -.01 -.30 -_52 S 1.00 _96 _94 .87 .78 .65 .51 .33 .13 -_30 --51 -.60 OH LENGTH' Oft. 1 ft. l%ft_ 2ft. 3ft. 3% ft. 4% ft. 5% ft. 6% ft. 9'1,ft. 14ft_ 20ft.+ "TO SELECT BY OVERHANG LENGTH, NO PART OF GLASS SHALL BE MORE THAN 8 FT. BELOW THE OVERHANG. 6A-11 WALL WINTER POINT MULTIPLIERS FRAME R-VALUE 0-6.9 7-10.9 11-12.9 13-18-9 19-25_9 26& U WOOD EXT ADJ 6.8 5.3 2.5 2.1 2_0 1.8 LB 1.6 1.1 to .7 _7 STEEL EXT ADJ 9A 6.7 4A 3.3 3_3 2.6 3.0 2A 2_6 2.2 lA 1.2 CONCRETE BLOCK1 INT. INSULATION NORMAL WT. EXT ADJ 6.0 3.1 3.8 2_3 2_9 1.9 2.3 1.5 1.5 1.1 _8 .7 -5 .5 6A-12 DOOR WINTER POINT MULTIPLIERS 6A-13 CEILING WINTER POINT MULTIPLIERS (WPM) DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING R-VALUE WPM R-VALUE WPM CEILING TYPE WOOD 7.6 5.9 19-219 1.0 10-10.9 1.8 R.VALUE DROPPED EXPOSED 22-25_9 .9 11-12.9 1-6 10-13.9 1.2 1.3 INSULATED 5_1 4_0 26-29.9 .7 13-18-9 1.5 14-20.9 .7 .7 30-37.9 .6 19-25.9 U 21 & UP A .3 38 & UP A 26-29.9 .6 ::lO!l. Un 4 6A-14 FLOOR WINTER POINT MULTIPLIERS (WPMI SLAB-oN.GRADE RAISED RAISED WOOD' EDGE INSULATION CONCRETE POST OR PIER STEM WALL wi UNDER ADJACENT CONSTRUCTION FLOOR INSULATION R.V ALUE WPM R-VALUE WPM R-V ALUE WPM WPM WPM 0-2_9 2.5 0-2_9 4_0 0-6.9 7.9 N/A 5.3 3-4_9 -1-7 3-4.9 LB 7-10.9 2_1 .7 2.1 5-6_9 -2A 5-6.9 1.1 11-18.9 1-5 -5 1.8 7 R.lln .? 7 7 !I. Iln A HI !I. Iln Q .3 1.0 WPM) 6A.15 INFILTRATION WINTER POINT MULTIPLIERS (WPM) INFILTRATION PRACTICE WPM SEE TABLE 9P PRACTICE #1 6.2 PRACTICE #2 4_1 6A-16 DUCT MULTIPLIERS OM SUPPLY DUCTS IN UNCONDITIONED SPACE RETURN DUCTS IN UNCONDITIONED SPACE 1.14 1.10 1.09 UO 1.07 RETURN DUCTS IN CONDITIONED SPACE 1.10 to7 to6 toO toO SUPPLY DUCTS IN ONDITIONED SPACE' 6A-17 HEATING SYSTEM MULTIPLIERS lHSMI SYSTEM TYPE HEATING SYSTEM MULTIPLIERS (HSM) Central Heat HSPF 6AO-6.79 6_80-6.89 6_90-7.39 7AO-7.89 7.90-8-39 8.40.8_89 8-9-9_39 9A-9.89 Pump Units HSM -53 .50 .49 A6 A3 Al .38 .36 HSPF 9.90-10_39 10AO-l0_89 10.90-11.39 11.40-11.89 11.90-12.39 12AO & UP ----..-...---- HSM _34 .33 _31 .30 .29 .28 PTHP COP 2-50-2_69 2.70-2_89 2.90-3_09 3_10-3.29 3_30-3A9 3.50-3_69 3.70-3_89 3.90-4.19 HSM .38 .37 .34 _32 _30 .29 .27 .26 Electric Strin 1.0 ---------...---- Gas & Other Fuels 1.0 (See Table 6A-18 for Credit Multiplier) -- MINIMUMS: CENTRAL UNITS-AIR SOURCE SPLIT SYSTEM 6.8 HSPF, SINGLE PKG. 6.6 HSPF, WATER SOURCE 3.8 COP, GROUND WATER SOURCE 3.4 COP, PTHP 2.5-2.7 COP. 1 FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2.1 OF APPENDIX C. 2 MULTIPLIERS FOR OTHER TYPES OF RAISED WOOD ASSEMBLIES SEE SECTION 3.1 OF APPENDIX C. 3 DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R-VALUE NECESSARY TO PREVENT CONDENSATION. .5.