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<br />WINTER POINT MULTIPLIERS (WPM)
<br />6A.1.0 WINTER OVERHANG FACTORS (WaF)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />~r
<br />wa:
<br />irlO Southwest 1.00 1.002 1.013 1.038 1.071
<br />0l West 1.00 0,999 1.003 1.013 1.025
<br />Northwest 1.00 0.999 0,998 0.997 0,997
<br />OH Len 0,0' 1.0' 1.5' 2,0' 3,0'
<br />
<br />
<br />1.573
<br />1.116
<br />0,989
<br />20.0'
<br />
<br />6A.11 WALL WINTER POINT MULTIPLIERS /WPM)
<br /> FRAME CONCRETE BLOCK (NORMAL wn FACE BRICK LOG
<br /> INTERIOR EXT. R.VALUE WOOD FR R.VALUE BLOCK
<br /> WOOD STEEL INSULATION INSUL 0-8,9 7.0 0-2,9 3.7 6 INCH 8/NCH
<br />R.VALUE EXT ADJ EXT ADJ R.VALUE EXT ADJ EXT 7-10,9 2,1 3-6.9 2,6 R.VALUE EXT EXT
<br />0-8,9 6,8 5.3 9.4 6.7 0-2.9 6,0 3,1 6,0 11-18,9 1.7 7-9,9 1.8 0-2,9 2,2 1.2
<br />7-10,9 2,5 2,1 4.4 3.3 34.9 3,8 2,3 2,8 19-25,9 1.0 10&UP 1.3 3-6,9 1.2 ,9
<br />11-129 2,0 1.8 3,3 2,6 5-6,9 2.9 1.9 2,0 26 & Up ,6 7&Up ,9 .7
<br />13-18,9 1.8 1.6 3,0 2.4 7-10,9 2,3 1.5 1.5
<br />19-25,9 1.1 1,0 2,6 2,2 11-18,9 1.5 1.1 ,8
<br />..1Q!. Uo .7 .7 1.4 1.2 19-25.9 ,8 ,7 r NOTE: SEE SECTION 2,0 OF APPENDIXC FORMUl TIPlIERS 1
<br /> 26&Up ,5 ,5 OF ENVELOPE COMPONENTS NOT ON THIS FORM,
<br />
<br />6M2 DOOR WINTER POINT MULTIPLIERS WPM)
<br />DOOR lYPE EXTERIOR ADJACENT
<br />
<br />~-
<br />
<br />6M3 CEILING WINTER PO/NT MULTIPLIERS (WPM)
<br />UNDER ATTIC SINGLE ASSEMBLY __
<br />R.VALUE WPM R.VALUE WPM
<br />19-21.9 ,87 10-10.9 1.02
<br />~-25,9~f--_ ,78 11-12,9 ,96
<br />26-29,9 ,69 13-18,9 ,84
<br />30-37.9 ,64 19-25,9 ,62
<br />38 & Un ,55 26-29,9 ,50
<br />RBS Credit 0,850 30 & Up .46
<br />IRCC Credn 0,905
<br />WMe Roof Credn 1.044
<br />
<br />R.VALUE
<br />10-13.9
<br />14-20,9
<br />21 &Up
<br />
<br />CONCRETE DECK ROOF
<br />CEILING TYPE
<br />EXPOSED I DROPPED
<br />1.16 T 1.0~_
<br />,83 I ,76
<br />,54 I ,50__
<br />
<br />WOOO
<br />
<br />7,6
<br />
<br />5,9
<br />
<br />INSULATED
<br />
<br />5,1
<br />
<br />4,0
<br />
<br />6A.14 FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />SLAB.oN-GRADE I
<br />EDGE INSULATION I
<br />
<br />R.VALUE WPM J
<br />0-2,9 iS2'5 ---'. '
<br />3-4,9 -1.7
<br />5-6.9 -2.4
<br />7&Uo -2,7
<br />
<br />RAISED
<br />CONCRETE
<br />R.VALUE I WPM
<br />~~ I 4,0 I
<br />_34,9 ~_!~u--j
<br />5-6,9 I 1,1 ,
<br />7 & Un I ,8
<br />
<br />R.VALUE
<br />I 0-6,9 ,
<br />1_-2~10,9 ----l-
<br />i 11-18,9 i
<br />I 19&Uo I
<br />
<br />RAISED WOOD
<br />POST OR PIER I STEM WALL wi UNDER
<br />CONSTRUCTION FLOOR INSULATION
<br />WPM I WPM
<br />2.49 ! 1,8
<br />_ 0.78 --~----=L--~~~---Z.-
<br />0.47 ------t--- ,5
<br />0,14 I .3
<br />
<br />ADJACENT
<br />
<br />WPM
<br />5,3
<br />I 2,1
<br />-~~ ---t- ~1T--
<br />1.0
<br />
<br />6A.15 INAL TRA TION & INTERNAL GAINS /WPMI 6A.17 DUCT MULTIPLIERS OM) See Table 6-10 for Code minimums,
<br />Air Infiltration 0.87 DUCT RETURN DUCTS In:
<br />Internal Gains -1.15 SUPPLY DUCTS IN: R.Value Unconditioned Attic! AttiCT AttiCT Conditioned
<br />Infiltration/Internal Gains -0,28 snace RBS IRCC White roof soace
<br />(Combined) 4,2 1.107 1.098 1.100 1.102 1.092
<br /> Uncondnioned Space 6,U 1. 78 1,072 1,074 1.075 1,068
<br /> '.-aJf , 61 1. 1. 057 1,058 1.052
<br />6A.16 AIR HANDLER MULTIPLIERS /WPMI 4,2 , 76 1. - - 1.05!T
<br />Located in aaraae 1.00 AttidRadiant Barrier (RBS) 6.0 ,58 1. - - l.u<JO
<br />Located in condnioned area 0,92 8: ,046 1. - - , J3l)
<br />Located on exterior of building 1.09 ,097 - 1,U88 - ,177
<br />Located in attic 1.11 Attic/Interior Radi~,~ion T, - 1,066 - .)57
<br /> Control CoatinQs IRCC) - 1.052 - .)45
<br /> - - 1, ,)90
<br /> AttiClWhite roof 6,0 - - 1. 1.070
<br /> j,O - - 1. f.
<br /> L2 1.008 1,U1U 1. 1,
<br /> Conditioned Space l.0 1,UU7 1,UU6 1,007 1,007 1.
<br />6M8 HEATING SYSTEM MULTIPLIERS IHSM) I,U 1,UU5 1,UU5 1.006 1.005 1.1
<br />SYSTEM TYPE See Tables 6-6 to 6-8 for code minimums HEATING SYSTEM MULTIPLIERS IHSM
<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 & un
<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 & Gas 1.0 (for gas credit multipliers, see Table 6A-21)
<br />
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