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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 4 ~ &
<br />
<br />6A-10 WINTER OVERHANG FACTORS (WOF)
<br /> ~ OH RATIO I ,00-.11 I .12-.17 .18-.26 .27-,35 ,36- .46 .47-,57 I .58-.70 I .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 /> E/W 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 />III
<br />tia: S 1,00 .95 .92 .83 ,70 ,54 .36 .13 -.13 -.70 -.98 -1.09
<br />we DOUBLE PANE GLASS
<br />m[ 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 />E/W 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. 11;2 ft. 2 ft. 3ft. 3'12 ft. 41;2 ft. 51;2 ft. 61;2 ft, 9'12 ft. 14ft. 20ft,+
<br /> 'TO SELECT BY OVERHANG LENGTH, NO PART OF GLASS SHALL BE MORE THAN 8 FT, BELOW THE OVERHANG.
<br />
<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 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
<br />
<br />
<br />6A.12 DOOR WINTER POINT MULTIPLIERS
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7.6 5.9
<br />INSULATED 5.1 4.0
<br />
<br />WPM)
<br />
<br />6A-13 CEILING WINTER POINT MULTIPLIERS (WPM)
<br />UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING
<br />R-VALUE WPM R-V ALUE WPM CEILING TYPE
<br />19-219 1.0 10-10.9 1.8 R-V ALUE DROPPED EXPOSED
<br />22-25.9 .9 11-12.9 1.6 10-13,9 1.2 1.3
<br />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 JI. Un <1
<br />
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />SLAB-aN-GRADE RAISED RAISED WOO[)2
<br />u< POST OR PIER STEM WALL wI UNDER
<br />EDGE INSULATION CONCRETE C CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-V ALUE WPM 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 N/A 5.3
<br />3-4,9 -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 Jl.lln II 1/ 10 R. Iln 0 ::I 1 n
<br />
<br />6A.15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />INFILTRATION PRACTICE WPM
<br />SEE TABLE gp
<br />PRACTICE #1 6.2
<br />PRACTICE #2 4.1
<br />
<br />6A-16 DUCT MULTIPLIERS OM
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />
<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1,14
<br />1.10
<br />1.09
<br />1.10
<br />1.07
<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 />ONDITIONED SPACE'
<br />
<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 .38 .37 .34 .32 .30 .29 .27 .26
<br />Electric Strio 1.0
<br />Gas & Other Fuels 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 2.5-2.7 COP,
<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-VALUE NECESSARY TO PREVENT CONDENSATION.
<br />
<br />.5-
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