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<br />W~NTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 4 ,5 t
<br />
<br />6A,10 WINTER OVERHANG FACTORS (WOF) 1.73-273 2.74+
<br /> r OH RATIO ,00-.11 I .12-.17 I ,18-,26 .27-.35 I .36-.46 I .47-.57 I ,58-.70 I .71-,83 I .84-1.18 1.19-1.72
<br /> SINGLE PANE GLASS ..
<br /> N 100 103 105 1.08 1.10 1.13 1.15 1.18 120 1.24 129 1.34
<br /> I NE/NW 100 107 1.10 1.15 120 125 130 135 139 1,50 1.59 1,67
<br />~, EJW 1.00 .71 .57 .19 -.20 -.65 -105 -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 -109
<br />ua: DOUBLE PANE GLASS
<br />wo
<br />....l 1.14 1.18 1.21 1,24 1,28 1,34 1.40 1.47
<br />w N 100 1.05 1.07 1.11
<br />II)
<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 /> ENJ 1.00 .88 .82 .66 ,50 ,31 ,15 -,03 -,26 -,66 -1.10 -150
<br /> SE/SW 1.00 ,95 .92 .85 .76 .65 ,54 ,41 ,28 -,01 -,3D ,,52
<br /> I S 1.00 .96 .94 ,87 .78 .65 ,51 ,33 ,13 -,3D -.51 -,60
<br /> ~ OH LENGTH' Oft. 1 ft, 1'/, ft. 2 ft. 3 ft. 3,/, ft. 4'/, ft. 5'/, ft, 6,/,ft. 9'/, ft. 14ft. 20 ft.+
<br /> THAN 8 FT BELOW THE OVERHANG.
<br />
<br />TO SELECT BY OVERHANG LENGTH, NO PART OF GLASS SHALL BE MORE
<br />
<br />6A-l1 WALL WINTER POINT MULTIPLIERS (WPM)
<br /> CONCRETE BLOCK' FACE BRICK LOG
<br /> FRAME INT. INSULATION ~XT, INSUL R-VALUE WOOD FR
<br /> WOOD STEEL NORMAL WT. NOR. WT. 0-6.9 7,0 61~ICH
<br />R-VALUE iXT ADJ EXT ADJ R.VALUE EXT ADJ EXT 7-10.9 2,1 R-VALUE EXT
<br />0.6,9 6.8 5.3 9.4 6,7 0-2.9 6.0 3.1 6,0 11-18,9 1.7 0-2,9 2.2
<br />7.10,9 2.5 2.1 4.4 3.3 3-4.9 3.8 2.3 2,8 19-25,9 1.0 3-6.9 1.2
<br />11-12.9 2.0 1,8 3.3 2.6 5-6.9 2.9 1.9 2.0 26 & UD ,6 7 & Un .9
<br />13-18.9 1.8 1.6 3.0 2.4 7-10,9 2.3 1.5 1.5 R.VALUE BLOCK 8 INCH
<br />19-25.9 11 1.0 2.6 2,2 11.1R.Q 1~ 1.1 .R 0-2,9 3.7 . EXT
<br /> .. 3.6.9 2,6 0-2,9 12
<br />26& Up 7 .7 1.4 1,2 19.25,9 ,8 .7 ..
<br /> 26 & Un ,5 .5 7-9.9 1.8 3-6,9 .9
<br /> 10 Il. Un 13 7 R.lln 7
<br />
<br />6A-12 DOOR WINTER POINT MULTIPLIERS
<br />DOOR TYPE EXTERIOR ADJACENT
<br />-. '-' ----~_.- --_.-~~-
<br />WOOD 7.6 5,9
<br />INSULATED 5.1 4.0
<br />
<br />WPM)
<br />
<br />6A-13 CEILING WINTER POINT MULTIPLIERS IWPMI
<br />UNDER A TIlC SINGLE ASSEMBLY CONCRETE DECK ROOF ----_._-
<br />R.VALUE WPM R-VALUE WPM . CEILING TYPE
<br />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 />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 & UD .4 .3
<br />38 & Un .4 26-29.9 .6
<br /> 'Ul R. Iln "
<br />
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPM}
<br />SLAB-ON-GRADE RAISED RAISED WOO[)2
<br /> POST OR PIER STEM WALL wi UNDER
<br />EDGE INSULATION CONCRETE CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-VALUE WPM R-VALUE WPM R.VALUE WPM WPM WPM
<br />._Q.:?~. 2.5 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 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 />~lln .?7 7 R. Iln A 10 R. Iln 0 'l 1 n
<br />
<br />6A-15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />
<br />INFIL TRA TION PRACTICE WPM
<br />ISEE TABLE 6A-21l
<br />PRACTICE #1 6.2
<br />PRACTICE #2 4.1
<br />:J!'l ??
<br />
<br />6A-17 HEATING SYSTEM MULTIPLIERS HSM
<br />SYSTEM TYPE
<br />Central Heat
<br />Pump Units
<br />
<br />PTHP
<br />
<br />HSPF
<br />HSM
<br />_ttSPF
<br />... .--.!:l,SM
<br />COP
<br />HSM
<br />
<br />6,4O-61~
<br />--~
<br />9,90-10,39
<br />,34
<br />2,50-2,69
<br />.40
<br />
<br />6A-16 DUCT MULTIPLIERS 10M I
<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 & Un 1.09 1,06
<br />SUPPLY DUCTSIN 4,2-5,9 1.10 1,00
<br />CONDITIONED SPACE' 6.0-6,6 1.07 1.00
<br />1;7 R.lln 106 1M
<br />
<br />_-'!EATI!IIG SYSII;M MULTIPLIERS HSM
<br />9"80-6,8~ 6.90-7,39 7,40-7,89
<br />.. u _ .50, .49 ~.u.AL
<br />10,40-10,89 10.90:11.39 11.40-11.89
<br />~ ,:31 ,30
<br />2,70-2,89 2,90-3,09 3.10-3,29
<br />,37 ,34 ,32
<br />
<br />7,90-8-19
<br />._.:~
<br />11.90-12,39
<br />_.,29
<br />3,30-3,49
<br />.30
<br />
<br />~.40-8.~! .
<br />__..~1
<br />12,40 & u
<br />,28
<br />3,50-3.69
<br />.29
<br />
<br />~.9-9.~~
<br />.,38~_
<br />
<br />~.4-989
<br />.36
<br />
<br />3,70:3,89
<br />,27
<br />
<br />-
<br />3,90-4.19
<br />.26
<br />
<br />E:1~tri~~!rip . ___..,_, __ _________,.. _ .._~__.
<br />,G.Cis_&1P Ga~_ __ . m . __ '_' _ 1,0 (S~Jable 6A-18 for Credit Multiplier) ~____.,_____, ,
<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 21 OF APPENDIX C. 2 MULTIPLIERS FOR OTHER TYPES OF RAISED WOOD ASSEMBLIES SEE
<br />SECTION 3.1 OF APPENDIX C, 3 DUCTS IN CONOITIONED SPACE NEED TO BE INSULATED ONL Y TO THE R.VALUE NECESSARY TO PREVENT CONDENSATION.
<br />
<br />-5.
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