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<br />WINTER POINT MULTIPLIERS (WPM)
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<br />,
<br />Cl..lMATE ZONES, 4 5 6:~ .
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<br />6A.10 WINTER OVERHANG FACTORS (WOF) -
<br />J OH RATIO I ,00-.11 .12-.17 .18-,26 ,27-.35 ,36-.46 I .47-.57 I ,58-.70 .71-,83 ,84-1l8 11.19-1.7211.73-2.73 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 />NElNW 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 />E/W 1.00 .71 ,57 .19 -.20 -,65 -1.05 -1.48 -2.03 -3.01 -4.06 -5,04
<br />SElSW 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 />ua: 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 />NElNW 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 />E/W 1.00 ,88 .82 .66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50
<br />SElSW 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 '12 ft. 2ft, 3ft, 3% 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 FTo BELOW THE OVERHANG
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<br />6A-11 WALL WINTER POINT MULTIPLIERS WPM
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<br />FRAME
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<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
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<br />
<br />CONCRETE BLOCK'
<br />INT, INSULATION EXT.INSUL
<br />NORMAL WT. NOR. WT.
<br />EXT ADJ EXT
<br />6.0 3.1 6.0
<br />3,8 2.3 2.8
<br />2.9 1.9 2,0
<br />2.3 1,5 1.5
<br />1,5 1.1 .8
<br />,8 .7
<br />.5 .5
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<br />6A-12 DOOR WINTER POINT MULTIPLIERS WI 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 II 21 & Uo .4 .3
<br /> 38 & Uo .4 26-29.9 ,6
<br /> 'IOR.lln <1
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />SLAB-ON-GRADE iii RAISED I, RAISED WOO[)2
<br />EDGE INSULATION i' CONCRETE POST OR PIER STEM WALL wI UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R.VALUE WPM R-V ALUE WPM R-VALUE WPM WPM WPM
<br />0-2.9 2.5 iiir: 0-2.9 4,0 0-6.9 7.9 1.8 5.3
<br />3-4.9 -1,7 3-4,9 1,8 iii'i 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 />7R.lln -? 7 "iii 7 R.lln R 1Q R. Iln Q 'I 10
<br />
<br />PM)
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<br />6A-15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
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<br /> 6A-16 DUCT MULTIPLIERS (DM)
<br />INFILTRATION PRACTICE WPM RETURN DUCTS RETURN DUCTS
<br /> (SEE TABLE 6A.21 I R-VALUE 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 UNCONDITIONED SPACE 6.0-6.6 1.10 1.07
<br /> ?? 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. lJn 1 OF; 100
<br />6A-17 HEATING SYSTEM MULTIPLIERS (HSMI
<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 & 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 Multiolierl
<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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