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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<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 1 .18-,26 1 ,27-,35 I ,36-.46 I .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 />EIW 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 />~a: S 1.00 ,95 .92 .83 ,70 ,54 ,36 .13 -,13 -.70 -,98 -1,09
<br />~o DOUBLE PANE GLASS
<br />~l 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 />EIW 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, 1% ft. 2ft. 3ft. 3'!2 ft. 4% ft. 5% ft, 6'!2ft, 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 PM
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<br />FRAME
<br />
<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 />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
<br />
<br />
<br />CONCRETE BLOCKl
<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 IWPM\
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R-VALUE 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 /> ::In R. [In 4
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS {WPM\
<br />SLAB-ON-GRADE RAISED Ii RAISED WOOD2
<br />EDGE INSULATION CONCRETE 1/ POST OR PIER STEM WALL wI UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-VALUE WPM R.VALUE WPM ( R-VALUE WPM WPM WPM
<br />0-2,9 2.5 iII 0-2,9 4,0 ii,. 0-6,9 7,9 1.8 5,3
<br />3.4,9 -1.7 3-4,9 1.8 iT 7.10,9 2,1 ,7 2.1
<br />5.6.9 .2.4 I.' 5-6.9 1.1 11-18,9 1.5 .5 1.8
<br />7 R. Iln _?7 -7 R.lln R 1Cl R. lIn Cl ::I 1 n
<br />
<br />WPM)
<br />
<br />6A-15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
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<br />6A-17 HEATING SYSTEM MULTIPLIERS IHSM\
<br />SYSTEM TYPE 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 & 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 Multinlier\
<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 />6A-16 DUCT MULTIPLIERS IDM\
<br /> RETURN DUCTS RETURN DUCTS
<br /> R-V ALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE
<br />SUPPLY DUCTS IN 4.2-5,9 1,14 1,10
<br />6,0-6,6 1.10 1,07
<br />UNCONDITIONED SPACE 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 R. Un 101': i(i()
<br />
<br />INFILTRATION PRACTICE WPM
<br />ISEE TABLE 6A-21\
<br />PRACTICE #1 6.2
<br />PRACTICE #2 4,1
<br /> ??
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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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<br />.5.
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