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:WINTER POINT MULTIPLIERS (WPM) CLIMATE ZONES 4 5 6 6A-10 WINTER OVERHANG FACTORS (WOFI J OH RATIO .00-.11 _12-.17 _18-.26 I .27-.35 .36-.46 .47-.57 -58-.70 I .71-.83 _84-1-18 11.19-1-72 1 1-73-2.73 I 2.74+ SINGLE PANE GLASS N 1.00 1.03 1.05 1.08 1-10 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 -1.48 -2_03 -3.01 -4.06 -5.04 SE/SW 1.00 .93 .90 .80 .68 .54 .39 .22 .05 -.33 -.71 -1.01 tia: S 1.00 .95 .92 _83 _70 -54 .36 .13 -.13 -.70 -.98 -1.09 ~[ DOUBLE PANE GLASS N 1.00 1.05 1.07 1.11 1.14 1.18 1.21 1.24 1.28 1-34 1.40 1.47 NE/NW 1.00 1.11 1.16 1.24 1.32 1.41 1.48 1.56 1.63 1.80 1.94 2.08 E!W 1.00 .88 .82 .66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50 SE/SW LOO .95 .92 _85 .76 .65 .54 .41 _28 -.01 -.30 -.52 S 1.00 _96 _94 _87 _78 .65 _51 _33 _13 -_30 -.51 -_60 OH LENGTH* Oft. 1 ft. 1% ft. 2ft. 3 ft. 3'1,ft_ 4'1,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 WPM FRAME WOOD EXT ADJ 6.8 5.3 2.5 2.1 2.0 1.8 1.8 1.6 1.1 1.0 _7 .7 R-VALUE 0-6.9 7-10.9 11-12.9 13-18.9 19-25.9 26& U STEEL EXT ADJ 9.4 6.7 4A 3.3 3_3 2.6 3.0 2.4 2.6 2_2 1.4 1.2 R-VALUE 0-2.9 3-4.9 5-6_9 7-10.9 11-18.9 19-25.9 26& U CONCRETE BLOCK1 INT. INSULATION EXT.INSUL NORMAL WT. NOR. WT. EXT ADJ EXT 6.0 3.1 6.0 3.8 2.3 2.8 2.9 1.9 2.0 2.3 1.5 1.5 1.5 1.1 .8 _8 .7 -5 .5 LOG 6A-12 DOOR WINTER POINT MULTIPLIERS 6A.13 CEILING WINTER POINT MULTIPLIERS IWPMl DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING R.V ALUE WPM R-V ALUE WPM CEILING TYPE WOOD 7.6 5.9 19-219 1.0 10-10_9 1.8 R-V ALUE 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 1.1 21 & Un .4 .3 38 & Uo .4 26-29_9 .6 ~o~ Iln d 6A-14 FLOOR WINTER POINT MULTIPLIERS IWPMl SLAB-QN.GRADE RAISED RAISED WOOD' EDGE INSULATION CONCRETE POST OR PIER STEM WALL wI UNDER ADJACENT CONSTRUCTION FLOOR INSULATION R-VALUE 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 1.8 7-10.9 2.1 .7 2.1 5-6.9 -2.4 5-6_9 1.1 11-18.9 1.5 .5 1.8 7 ~ Iln -? 7 7 ~ Iln R HI ~ Iln Q ~ 10 WPM) 6.2 4_1 6A-16 DUCT MULTIPLIERS OM SUPPLY DUCTS IN UNCONDITIONED SPACE RETURN DUCTS IN UNCONDITIONED SPACE 1-14 1.10 1.09 1.10 1.07 RETURN DUCTS IN CONDITIONED SPACE 1-10 1.07 1.06 1.00 1.00 SUPPLY DUCTS IN ONDITIONED SPACE' 6A-17 HEATING SYSTEM MULTIPLIERS IHSMl SYSTEM TYPE HEATING SYSTEM MULTIPLIERS IHSMl Central Heat HSPF 6.40-6.79 6.80-6.89 6.90-7_39 7.40-7.89 7_90-8.39 8-40-8-89 8.9-9.39 9.4-9.89 Pump Units HSM .53 _50 .49 .46 .43 .41 .38 _36 HSPF 9_90-10.39 10.40-10.89 10_90-11.39 11.40-11.89 11.90-12.39 12.40 & uo 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 3.30-3.49 3-50-3_69 3.70-3.89 3_90-4.19 HSM .38 _37 .34 .32 .30 .29 .27 .26 Electric Strio 1.0 Gas & Other Fuels LO ISee Table 6A-18 for Credit Multinlier' 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-V ALUE NECESSARY TO PREVENT CONDENSATION. -5-