|
<br />. WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES .4 S 6 .
<br />
<br />6A.~O . WINTER OVERHANG FACTORS (WOF) (\
<br />'r OH RATIO .00-,11 .12'-.17 I .18-.26 .27- 35 .36-,46 .47-.57 .58-.70 .71-.83 .84-1.18 1.19-1.7211.73-2.73 I 2,74+
<br /> SINGLE PANE GLASS
<br />N 1.00 1.03 1.05 1 , 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 />I E/W 1.00 .71 .57 .19 -,20 -.65 -LOS -1,48 -2.03 -3.01 -4,06 -5.04
<br />inl SE/SW 1.00 .93 .90 .80 ,68 .54 .39 .22 .05 ..33 -,71 -1.01
<br />.... S 1.00 .95 .92 .83 ,70 .54 .36 .13 -,13 -.70 -.98 -1.09
<br />ua::
<br />wo DOUBLE PANE GLASS
<br />...J, 1.05
<br />w, N 1.00 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 />: ENJ 1.00 .88 .82 .66 .50 .31 ,15 -.03 -.26 -.66 -1.10 -1,50
<br />i
<br />I SE/SW 1.00 .95 I .92 .85 .76 .65 ,54 .41 .28 -.01 -,30 -.52
<br />I S 1.00 ,96 I .94 .87 .78 .65 .51 ,33 .13 ..30 -.51 -,60
<br />~ OH LENGTH' Oft. 1 ft. ! 1% ft. 2ft. 3ft. 3Y2ft. 4Y2ft. 5Y2ft. 6Y2ft, 9Y2ft. 14ft. 20 ft.+
<br /> 'TO SELEC BY QlUERHANG LENGTH, NO PART OF GLASS SHALL BE MORE THAi. 8 FT BELOW THE OVERHANG.
<br />
<br />6A-ll WALL WINTER POINT MULTIPLIERS (WPM I
<br /> FRAME CONCRETE BLOCK' FACE BRICK LOG
<br /> 'INT. INSULATION XT. INSUL R-V ALUE WOOD FR
<br /> -------. -- -
<br /> WOOD STEEL NORMAL WT. NOR. WT. 0-6,9 7,0 6 INCH
<br />R.VALUE EXT ADJ EXT ADJ R.VALUE EXT ADJ EXT 7-10.9 2.1 R.VALUE 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 2.0 1.8 3.3 2.6 5-6.9 2.9 1.9 2.0 26 & Uo .6 7 & Un .9
<br />13-18,9 1.8 1.6 3.0 2,4 7-10.9 2,3 1.5 1,5 R-V ALUE BLOCK a INCH
<br />19-25.9 1,1 1.0 2.6 2.2 11-18.9 1.5 1.1- .8 0-2.9 -~ 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 & Up .5 ,5 7-9.9 1.8 3-6.9 ,9
<br /> 10 & Un 13 , 7 Jl.lln 7
<br />
<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.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 & Uo .4 .3
<br /> 38 & Up .4 26-29.9 .6
<br /> 30 & Uo ,4
<br />6A.14 FLOOR WINTER POINT MULTIPLIERS (WPMl
<br />SLAB-ON.GRADE RAISED RAISED WOOD2 I
<br />EDGE INSULATION CONCRETE POST OR PIEri STEM WALL wi UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-VALUE WP~, R.VALUE WPM R.V ALUE WPM WPM WPM
<br />0-2.9 ( 2.5/ 0-2.9 4.0 0-6.9 7.9 1.8 5,3
<br />1-----~'t9 -1.7 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 & Iln -? 7 7 & Iln R 1Q Jl. lln Q .3 1 n
<br />
<br />WPM)
<br />
<br />6A.1S INFILTRATION WINTER POINT MULTIPLIERS (WPM) 6A.16 DUCT MULTIPLIERS OM
<br />
<br />INFILTRATION PRACTICE WPM
<br />(SEE TABLE 6A-21l
<br />PRACTICE #1 6.2
<br />PRACTICE #2 4,1
<br />#1 ??
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />
<br />RETURN DUCTS
<br />IN CONDITIONED SPACE
<br />1,10
<br />1.07
<br />1.06
<br />1.00
<br />1.00
<br />
<br />SUPPLY DUCTS IN
<br />CONDITIONED SPACE'
<br />
<br />6A.17 HEATING SYSTEM MULTIPLIERS HSM
<br />SY~TEM TYPE
<br />Central Heat
<br />Pump Units
<br />
<br />PTHP
<br />
<br />HSPF
<br />_lfSM__
<br />HSPF
<br />HSM
<br />COP
<br />HSM
<br />
<br />6.40-6.79
<br />.53
<br />9.90-10.39
<br />.34
<br />2.50-2.69
<br />.40
<br />
<br />HEATINf jYSTEM MULTIP
<br />6.80-6.p 6.90-7,39 7.40-7.89
<br />"~p A9___ ~
<br />10,40-10.89 10.90-11.39
<br />.33 _,31
<br />2.70-2.89 2.90-3.09
<br />.37 ,~4
<br />
<br />.30
<br />3.10-3.29
<br />.32
<br />
<br />_ 7,9011)9
<br />~ .43 _ _
<br />, 11.90-12.39
<br />1 --------
<br />.29
<br />1 _ 3.30:H!l
<br />~.30___
<br />
<br />MQ-8,89
<br />._ .,51
<br />J.?AQ&.J!{l
<br />.213
<br />_:L50-3.69
<br />.29
<br />
<br />--.".
<br />_Hll.89
<br />~---
<br />
<br />3.70-3.89
<br />.27
<br />
<br />3.90-4.19
<br />.26
<br />
<br />Electric StriJL__ 1.0
<br />
<br />Gas & LPGas .. . 1.0 rSee Table 6A-18 for Credit Multiplierl .
<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.
<br />
<br />1 FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 21 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.
<br />
<br />-5-
<br />
|