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<br />WINTER POINT MULTIPLIERS (WPM)
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<br />CLIMATE ZONES 4 5 6
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<br />6A-10 WINTER OVERHANG FACTORS (WOF)
<br />J OH RATIO I ,00-,11 ,12-,17 ,18-,26 I ,27-,35 ,36-,46 .47-,57 ,58-,70 I ,71-,83 ,84-1 ,18 I 1.19-1,72 T 1.73-2.73 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 />NElNW 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 />SElSW 1,00 ,93 ,90 ,80 ,68 ,54 ,39 ,22 ,05 -,33 -,71 -1,01
<br />Ga: 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 />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
<br />E/W 1,00 ,88 ,82 ,66 ,50 ,31 ,15 -,03 -,26 -,66 -1.10 -1,50
<br />SElSW 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, 1%ft, 2ft, 3ft, 3'12ft, 4%ft, 5'12 ft, 6'12 ft, 9%ft, 14ft, 20ft,+
<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
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<br />FRAME
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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
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<br />R-VALUE
<br />0-6,9
<br />7-10,9
<br />11-12,9
<br />13-18,9
<br />19-25,9
<br />26&U
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<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 />CONCRETE BLOCK'
<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 (wPMl
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R-V ALUE WPM R-V ALUE 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 &Uo .4 ,3
<br /> 38 & Uo .4 26-29,9 ,6
<br /> "lnR.lln 11
<br />6A.14 FLOOR WINTER POINT MULTIPLIERS (WPMl
<br /> 0 :Tn RAISED WOOD2
<br />SLAB-ON-GRADE RAISED U:( POST OR PIER STEM WALL wI UNDER
<br />EDGE INSULATION CONCRETE J+n CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-VALUE WPM ;':'i R-VALUE WPM 'i+ R-VALUE WPM WPM WPM
<br />0-2,9 2,5 0-2,9 4,0 ++JJ: 0-6,9 7,9 1,8 5,3
<br />3-4,9 -1,7 ii' 3-4,9 1.8 :::;:; 7-10,9 2,1 ,7 2,1
<br />5-6,9 -2.4 ::"';; 5-6,9 1,1 ::',': 11-18,9 1,5 .5 1,8
<br />7 R.lln -?7 ::U 7 Po [In R :iF" 1cli~ ~ ~ 1(\
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<br />WPM)
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<br /> 6A-16 DUCT MULTIPLIERS (DMl
<br />INFILTRATION PRACTICE WPM RETURN DUCTS RETURN DUCTS
<br /> (SEE TABLE 6A-2H R-V ALUE 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 6,0-6,6 1,10 1,07
<br /> :J!<l. -,-? UNCONDITIONED SPACE 6,7 & UP 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 /> I'; 7 R.lln 1:06 1:00
<br />6A-17 HEATING SYSTEM MULTIPLIERS (HSMl
<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 & uo
<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 />6A-15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
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<br />, 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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<br />,5,
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