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WINTER POINT MULTIPLIERS (WPM) CLIMATE ZONES' 4 5 6" 6A: 10 . WINTER OVERHANG FACTORS (WOF) J OH RATIO .00-.11 I .12-.17 I .18-.26 .27-.35 I .36-.46 .47-.57 I .58-.70 1 .71-.83 .84-1.18 1.19-1.72 11.73-2.73 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 f.07 1.10 1.15 1.20 1.25 1.30 1.35 1.39 1.50 1.59 1.67 EIW ( 1.00) .71 .57 .19 -.20 -.65 -1.05 -1.48 -2.03 -3.01 -4.06 -5.04 SfJSW 1.00 .93 .90 .80 .68 .54 .39 .22 ..05. -.33 -.71 -1.01 t-a; 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 NElNW 1.00 1.11 1.16 1.24 1.32 1.41 1.48 1.56 1.63 1.80 1.94 2.08 EIW 1.00 .88 .82 .66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50 SElSW 1.00 .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. l~ft. 2ft. 3ft. 3~ft. 4'12 ft. 5~ft. 6\~ft. 9~ft. 14 ft. 2Oft.+ '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 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 4.4 3.3 3.3 2.6 3.0 2.4 2.6 2.2 1.4 1.2 CONCRETE BLOCK' INT. INSULATION NORMAL WT. EXT ADJ 6.0 3.1 3.8 2.3 2 1.9 2. 1.5 1.1 .7 .5 6A-13 CEILING WINTER POINT MULTIPLIERS (WPM) UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF R-VALUE WPM.. R-VALUE WPM CEILING TYPE 19-21.9 ( 1.0 ) 10-10.9 1.8 R-VALUE DROPPED EXPOSED 22-25.9 .9 11-12.9 f.6 10-13.9 1.2 1.3 26-29.9 .7 13-18.9 1.5 14-20.9 .7 .7 30-37.9 .6 19-25.9 1.1 21 & Uo .4 .3 38 & Up .4 26-29.9 .6 30 & Un .4 6A-14 FLOOR WINTER POINT MULTIPLIERS (WPM) SLAB-aN-GRADE RAISED RAISED WOOI)2 EDGE INSULATION CONCRETE POST OR PIER STEM WALL wI UNDER ADJACENT CONSTRUCTION FLOOR INSULATION R-VALUE W2M < R.VALUE WPM R-VALUE WPM WPM WPM 0-2.9 (2.5..> i/) 0-2.9 4.0 u... 0-6.9 7.9 1.8 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 'f 11-18.9 1.5 .5 1.8 .7& Un -2] 1-<0 7 It. IIn R OJ HI Rolin Q .3 1.0 6A-12 DOOR WINTER POINT MULTIPLIERS WPM) DOOR TYPE EXTERIOR ADJACENT WOOD 7.6 5.9 INSULATED 6A-15 INFILTRATION WINTER POINT MULTIPLIERS (WPM) . INFILTRATION PRACTICE WPM SEE TABLE 6A-21 PRACTICE #1 PRACTICE #2 6A-16 DUCT MULTIPLIERS OM SUPPLY DUCTS IN UNCONDmONED SPACE RETURN DUCTS IN UNCONDmONED SPACE 1. RETURN DUCTS IN CONOmONED SPACE 1.10 1.07 1.06 1.00 1.00 SUPPLY DUCTS IN CONDmONEO SPACE3 6A-17 HEATING SYSTEM MULTIPLIERS lHSM) SYSTEM TYPE HEATING SYST"'1I II'" ... PLIERS lHSM) Central Heat HSPF 6.40-6.79 6.80-6.89 ~.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 .~- _ HSPF 9.90-10.39 10.40-10.89 11.40-11.89 11.90-12.39 12.40 & up ------------.- _ HSM .34 .33 .31 .30 .29 .28 '- PTHP COP 2.50-2.69 ----1L~.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 .40 .37 .34 .32 .30 .29 .27 .26 gl~c;lric .~ 1.0 Ga!; UP Gas 1.0 (See Table 6A-18lorCredil Multiolier) ----.- 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 SEE TABLES S-6 TO 6-8. I FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2.1 OF APPENDIX C. 2 MULTIPLIERS FOR OTHER TYPES OF RAISED WOODASSEMBlIES SEE SECTION 3.1 OF APPENDIX C. 3 DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R.VALUE NECESSARYTO PREVENT CONDENSATION. .5.