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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 (WOFI .-
<br /> r OH RATIO ,00-,11 2-,1,\ ,18',26 .27-,35 ,36..46 .47'.57 .58- .70 .71-,83 I ,84-1.18 1.19-1.72 11.73-2.73 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 /> 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 /> EIW 1.00 .71 J .57 .19 -.20 -,65 -1.05 -1.48 -2.03 -3.01 -4,06 -5,04
<br />>1 SE/SW 1,00 .93/ .90 .80 .68 ,54 .39 .22 .05 -,33 -.71 -1,01
<br />lD
<br />l- S 1,00 .9~ ,92 ,83 .70 .54 ,36 .13 -.13 -.70 -.98 -1,09
<br />ua:: V DOUBLE PANE GLASS
<br />wo
<br />iLl I 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 />en ,
<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 /> i E/W 1,00 .88 .82 ,66 .50 ,31 .15 -.03 -.26 -,66 -1.10 -1.50
<br /> I SE/SW 1,00 ,95 ,92 .85 .76 ,65 .54 .41 .28 -.01 -.30 -,52
<br /> I S 1.00 ,96 .94 ,87 .78 .65 .51 ,33 .13 -.30 -,51 -.60
<br /> ~ OH LENGTH' Oft. 1 ft. 1'12 ft, 2ft, 3 ft. 3'12 ft. 4'1,ft, 5'/, ft. 6% ft. 9'12ft, 14ft, 20ft,+
<br /> 'TO SELECT BY OVERHANG LENGTH, NO PART OF GLASS SHALL BE MORE Ttj,AN 8 FT. BELOW THE OVERHANG.
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<br />6A-11 WALL WINTER POINT MULTIPLIERS /WPM)
<br /> FRAME CONCRETE BLOCK' FACE BRICK LOG
<br /> j INT. INSULATION ~XT. INSUL R-VALUE WOOD FR
<br /> WOOD STEEL NORMAL WT. NOR. WT. 0-6,9 7.0 6 INCH
<br />R.V ALUE EXT ADJ EXT ADJ R-VALUE EXT ADJ EXT 7-10,9 2.1 R.V ALUE EXT
<br />0-6.9 6,8 5,3 9.4 6.7 0-2,9 6.0 3,1 6,0 11-18,9 1.7 0-2.9 2.2
<br />7.10.9 2.5 2.1 4.4 3.3 3-4.9 3,8 2.3 2.8 19-25.9 1,0 3-6.9 1,2
<br />11-12.9 ,2.lt- ;0" I "1.lf ' 3,3 2.6 5-6,9 2.9 1.9 2,0 26 & Uo ,6 7 &Uo .9
<br />13-18,9 ....1.8 "'-r:s 3.0 2,4 7-10.9 2.3 1,5 1,5 R-V ALUE BLOCK 8 INCH
<br />19-25.9 1,1 1,0 2.6 2.2 11-18,9 1.5 1.1 .8 0-2.9 3,7 R.VALUE EXT
<br />26& Uo .7 ,7 1,4 1.2 19-25.9 .8 .7 3.6.9 2.6 0-2.9 1.2
<br /> 26 & Uo .5 .5 7-9.9 1,8 3-6.9 .9
<br /> 10& Un 1.3 7 Ro Iln .7
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<br />6A-12 DOOR WINTER POINT MULTIPLIERS WPMI
<br />DOOR TYPE EXTERIOR ADJAr,ENT
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<br /> 6A-13 CEILING WINTER POINT MULTIPLIERS /WPM)
<br /> UNDER ATTI~ SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R-VALUE WPM R-VALUE WPM CEILING TYPE ---
<br /> 19-21.9 1.(1- 10-10.9 1.8 R-V ALUE DROPPED EXPOSED
<br /> 22.25.9 q-g~ } 11-12.9 1.6 10-13,9 1,2 1.3
<br /> 26-29.9 -r 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 & Uo .4 26-29,9 ,6
<br /> ~n}l, IJn d
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS /WPM)
<br />SLAB-ON-GRADE RAISED RAISED WOO[)2
<br />EDGE INSULATION CONCRETE POST OR PIJ:R STEM WALL wi UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-V ALUE ~ R.VALUE WPM R-VALUE WPM WPM WPM
<br />0-2.9 ( 2,5 .J 0-2,9 4.0 0-6.9 7.9 1.8 5,3
<br />3-4.9 l':7 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 Ro IIn -2.7 7 Rolin _8 HI}l, Iln !l 3 10
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<br />WOOD
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<br />INSULATED
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<br />6A.15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />," INFILTRATION PRACTICE WPM
<br />SEE TABLE 6A-21
<br />PRACTICE #1
<br />PRACTICE #2
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<br />6A-16 DUCT MULTIPLIERS OM
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<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
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<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1,14
<br />.10
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<br />RETURN DUCTS
<br />IN CONDITIONED SPACE
<br />1,10
<br />1.07
<br />1.06
<br />1.00
<br />1,00
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<br />SUPPLY DUCTS IN
<br />CONDITIONED SPACE'
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<br />6A-17 HEATING SYSTEM MULTIPLIERS /HSMI
<br />_SYST~M_TY~_ HEATING SYSTE_M MULTIPLIERS IHSM -..-
<br />Central Heat --.-.!:i~PL __ "- __6.40-6.79 6.80-6.89 6.90-7,39 __ -. 7~ _~Q-8.~L ----.MO-8.89 8.9-9,39 9,4-9,89 --
<br />Pump Units HSM .53 .50 ~49 { .46 ) .4~ .41 .38 .36
<br /> HSPF 9.90-10.39 10.40-10.89 10.90.11,39 11~" 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 Strip 1.0
<br />Gas & LP Gas 1.0 /Se~Table 6A-18 for Credit Multiplier)
<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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