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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES- 4 5 6'
<br />
<br />6A-10 WINTER OVERHANG FACTORS (WOFl
<br />J OH RATIO I ,00-,11 ,12-.17 ,18-,26 I ,27-,35 I ,36-,46 ,47-,57 ,58- .70 ,71-,83 1-,84-1,18,,1.19-1,72 1.73-2.73 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 />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 />tia:: S 1.00 ,95 ,92 ,83 ,70 ,54 ,36 ,13 -,13 -,70 -,98 -1,09
<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 />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' o It, 1 It. l%It, 2 It, 3 It. 3% It, 4% It, 5'1, It, 6% ft. 9% It, 14ft. 201t,+
<br /> 'TO SELECT BY OVERHANG LENGTH, NO PART OF GLASS SHALL BE MORE THAN 8 FT. BELOW THE OVERHANG,
<br />
<br />6A-ll WALL WINTER POINT MULTIPLIERS PM
<br />FRAME
<br />
<br />R-V ALUE
<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 />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 />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 EXT.INSU
<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
<br />
<br />
<br />LOG
<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 ROOFING
<br /> R-V ALUE WPM R-VALUE WPM CEILING TYPE
<br />WOOD 7,6 5,9 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 />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 /> 3D & Uo .4
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPMl
<br />SLAB-ON-GRADE RAISED 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 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 Rolin -? 7 7 Rolin R HI Ro Iln Cl .3 10
<br />
<br />WPM)
<br />
<br />6A-1S INFILTRATION WINTER POINT MULTIPLIERS (WPM) 6A-16 DUCT MULTIPLIERS DM
<br />
<br />INFILTRATION PRACTICE WPM
<br />(SEE TABLE 9Pl
<br />PRACTICE #1 6,2
<br />PRACTICE #2 4,1
<br /> 2.2
<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 (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 & 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 Multiolierl
<br />MINIMUMS: CENTRAL UNITS-AIR SOURCE SPUT 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 MUL TIPUERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2,1 OF APPENDIX C, 2 MUL T1PUERS FOR OTHER TYPES OF RAISED WOODASSEMBUES 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,
<br />
<br />,5,
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