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<br />" WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A-10 WINTER OVERHANG FACTORS (WOF)
<br />J OH RATIO I ,00-,11 ,12-,17 1 .18-,26 ,27-.35 I .36-,46 I .47-,57 ,58-.70 / ,71-,83 .84-1.18 11,19-1.72/1.73-2.73 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 />EJW 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 />l- S 1.00 .95 ,92 .83 .70 .54 .36 ,13 -.13 -.70 -,98 -1,09
<br />oa:
<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 />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 />EJW 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, l%ft, 2ft, 3 ft, 3'12 ft. 4%ft, 5%ft, 6% 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
<br />
<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
<br />
<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 BLOCK1
<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
<br />
<br />
<br />6A-12 DOOR WINTER POINT MULTIPLIERS 6A-13 CEILING WINTER POINT MULTIPLIERS (WPM}
<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 & Up .4 .3
<br /> 38 & Up ,4 26-29,9 ,6
<br /> 3011. Un .4
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPM}
<br />SLAB-DN-GRADE :: RAISED Tn RAISED WOOD2
<br />EDGE INSULATION ;; CONCRETE 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 nTn 0-2.9 4,0 0-6.9 7.9 1,8 5.3
<br />3-4,9 -1.7 Vi 3-4,9 1.8 7-10.9 2,1 .7 2,1
<br />5-6,9 -2.4 liii 5-6.9 1.1 " 11-18,9 1.5 .5 1.8
<br />7 P.IJn -? 7 In 711.lJn R Un HllI.LJn 9 .3 1.0
<br />
<br />WPM)
<br />
<br />6A-15 INFIL TRA nON WINTER POINT MULTIPLIERS (WPM)
<br />
<br /> 6A-16 DUCT MUL nPLlERS (OM}
<br />INFILTRATION PRACTICE WPM RETURN DUCTS RETURN DUCTS
<br /> (SEE TABLE 6A-21) 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 /> 2.2 UNCONDITIONED SPACE 6.7 & UD 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 /> fl711.lJn 100 100
<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 & 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 StriD 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 />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-V ALUE NECESSARY TO PREVENT CONDENSATION.
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