<br />.. 'WINTER POINT MULTIPLIERS (WPM)
<br />
<br />if I
<br />\~..,'
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<br />CLIMATE ZONES ~ 5' 6
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<br />6A-10 WINTER OVERHANG FACTORS (WOF)
<br />J OH RATIO I ,DO-,ll ,12-,17 I .18-.26 1 ,27,,35 .36-.46 1 ,47-.57 .58-.70 I .71-.83 .84-1.18 11.19-1.72 11.73-2.73 I 2,74+
<br /> SINGLE PANE GLASS
<br />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
<br />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
<br />E/W 1.00 .71 .57 .19 -.20 -,65 -1.05 -1.48 -2.03 -3.01 -4.06 -5.04
<br />SE/SW 1.00 ,93 .90 .80 .68 ,54 ,39 ,22 .05 -.33 -.71 -1.01
<br />tia: S 1,00 ,95 .92 ,83 .70 ,54 .36 .13 -.13 -.70 -,98 -1.09
<br />~[ DOUBLE PANE GLASS
<br />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
<br />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
<br />E/W 1.00 .88 ,82 .66 .50 .31 .15 -.03 -.26 -,66 -1.10 -1.50
<br />SE/SW 1.00 .95 .92 ,85 .76 .65 ,54 .41 .28 -.01 -.30 -.52
<br />S 1.00 .96 .94 .87 .78 .65 .51 ,33 ,13 -.30 -,51 -.60
<br />OH LENGTH* Oft. 1 ft. lY,ft, 2ft. 3ft. 3% 11, 4%11. 5% ft. 6% 11, 9Y,I1. 1411. 2011.+
<br /> 'TO SELECT BY OVERHANG LENGTH. NO PART OF GLASS SHALL BE MORE THAN 8 FT. BELOW THE OVERHANG.
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<br />6A-11 WALL WINTER POINT MULTIPLIERS WPM
<br />FRAME
<br />
<br />R-VALUE
<br />0-6,9
<br />7-10.9
<br />11-12,9
<br />13-t8.9
<br />19-25.9
<br />26& U
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<br />WOOD
<br />EXT ADJ
<br />6,8 5.3
<br />2.5 2.1
<br />2.0 1.8
<br />1.8 1.6
<br />1.1 1.0
<br />.7 .7
<br />
<br />STEEL
<br />EXT ADJ
<br />9.4 6.7
<br />4.4 3.3
<br />3.3 2,6
<br />3,0 2.4
<br />2,6 2.2
<br />1.4 1,2
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<br />
<br />CONCRETE BLOCK1
<br />INT. INSULATION
<br />NORMAL WT.
<br />EXT ADJ
<br />6.0 3.1
<br />3.8 2,3
<br />2.9 1.9
<br />2,3 1.5
<br />1.5 1,1
<br />.8 .7
<br />.5 .5
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<br />6A-12 DOOR WINTER POINT MULTIPLIERS 6A.13 CEILING WINTER POINT MULTIPLIERS /wPM)
<br />. DOOR TYPE EXTERIOR ADJACENT UNDER Arnc SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R.VALUE WPM R-VALUE WPM CEILING TYPE
<br />WOOD 7.6 5.9 19-21.9 1.0 10-10,9 1.8 R-VALUE DROPPED EXPOSED
<br /> 22-25.9 ,9 11-12,9 1.6 10-13.9 1.2 1.3
<br />INSULATED 5.1 4.0 26-29.9 .7 13-18,9 1.5 14-20.9 ,7 .7
<br /> 30-37.9 ,6 19-25,9 1.1 21 & UP ,4 .3
<br /> 38 & UP .4 26-29.9 .6
<br /> ::lORotln d
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />SLAB-oN-GRADE RAISED RAISED WOO[)2
<br />EDGE INSULATION II CONCRETE <, POST OR PIER STEM WALL wi UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-VALUE WPM Iii R.VALUE WPM R-VALUE WPM WPM WPM
<br />0-2,9 2.5 0-2.9 4,0 0-6,9 7.9 1.8 5,3
<br />3-4,9 -1.7 I' 3-4.9 1,8 'ii: 7-10.9 2.1 .7 2,1
<br />5-6,9 -2.4 5-6.9 1.1 i 11-18.9 1.5 .5 1.8
<br />7 & Uo -2.7 ,,'I 7& Uo .8 Ii 19& Uo ,9 ,3 1.0
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<br />WPM)
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<br />6A-15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
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<br /> 6A.16 DUCT MULTIPLIERS toM)
<br />INFILTRATION PRACTICE WPM RETURN DUCTS RETURN DUCTS
<br /> (SEE TABLE 6A-21) R-VALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE
<br />PRACTICE #1 6.2 SUPPLY DUCTS IN 4,2-5.9 1.14 1.10
<br />PRACTICE #2 4.1 UNCONDITIONED SPACE 6,0-6.6 1.10 1,07
<br /> ?? 6.7 & Uo 1.09 1.06
<br /> SUPPLY DUCTS IN 4,2-5.9 1.10 1.00
<br /> CONDITIONED SPACE' 6.0-6.6 1.07 1.00
<br /> F,7 Rolin 1.06 1.00
<br />6A-17 HEATING SYSTEM MULTIPLIERS (HSM)
<br />SYSTEM TYPE HEATING SYSTEM MULTIPLIERS (HSM
<br />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
<br />Pump Units HSM .53 .50 .49 .46 .43 ,41 .38 .36
<br /> HSPF 9,90-10.39 10.40-10.89 10.90-11.39 11.40-11,89 11.90-12.39 12,40 & UP
<br /> HSM .34 .33 .31 .30 ,29 .28
<br />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
<br /> HSM .40 ,37 ,34 ,32 .30 .29 .27 .26
<br />Electric Strio 1.0
<br />Gas & LP Gas 1,0 (See Table 6A-18 for Credit Multiolier)
<br /> 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 6-6 TO 6-8.
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<br />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
<br />SECTION 3,1 OF APPENDIX C. 3 DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R.VALUE NECESSARY TO PREVENT CONDENSATION,
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