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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 4 S 6
<br />
<br />6A-l0, WINTER OVERHANG FACTORS (WOFl
<br /> ... OH RATIO ,00-,11 .12-,17 I .18-.26 ,27-,35 ,36-.46 ,47-57 ,58-,70 ,71-.83 I ,84.1.18 1,19-1,7211]3-2,73 I 2,74+
<br /> I r~ SINGLE PANE GLASS
<br /> N LOO 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 ,36 ,13 -,13 -,70 -,98 -1.09
<br />ta: S 1.00 ,95 .92 ,83 .70 ,54
<br />wo DOUBLE PANE GLASS
<br />irll N 1,00 1.05 1.07 1,11 1,14 1,18 1,21 1,24 128 1,34 1,40 1.47
<br />(/)1 NE/NW 1.00 1,11 1.16 1.24 1,32 1.41 1.48 1.56 163 1.80 1.94 2.08
<br /> I E/W 1.00 ,88 ,82 ,66 ,50 ,31 .15 -,03 -26 -.66 -1,10 .1,50
<br /> I
<br /> l 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 1111, 1'1,11, 2 II. 3 II. 3% II. 4'1,11. 5% II, 6'/:,11, 9'1, II, 1411, 2011,+
<br /> 'TO SELEct BY ~ E RHANG LENGTH, NOPART OF GLASS SHALL BE MORE rHAN 8 FT, BELOW THE OVERHANG,
<br /> ~
<br />
<br /><---
<br />
<br />6A-11 WALL WINTER POINT MULTIPLIERS IWPMl
<br /> FRAME CONCRETE BLOCK' FACE BRICK LOG
<br /> INT. INSULATION I:XT. INSUL R-VALUE WOOD FR
<br /> ~ Ion STEEL NORMAL WT. NOR. WT. 0-6.9 7.0 6 INCH
<br />R-VAlUE EXT ADJ EXT ADJ R.V ALUE 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] 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 />.JJJgJl- 2,0 1,8 3,3 2,6 5-6.9 2,9 1,9 2,0 26 & Uo ~ 7 & Uo ,9
<br />'13-18,9 1,8 1,6 3,0 2.4 7-10,9 2,3 1.5 1.5 R-YALUE BLOCK 8 INCH
<br />19-25,9 1,1 1,0 2,6 2.2 11-18.9 1.5 1,1 ,8 0-2,9 3,7 R-VALUE EXT
<br />26& UD .7 ,7 1,4 1,2 19-25,9 ,8 ,7 3-6.9 2,6 0-2.9 1,2
<br /> 26 & Uo ,5 ,5 7-9.9 1,8 3-6.9 ,9
<br /> -inR." Iln 1:'l 7 R. Iln .7
<br />
<br />6A-12 DOOR WINTER POINT MULTIPLIERS , 6A-13 CEILING WINTER POINT MULTIPLIERS IWPMl
<br /> . ----t1NDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br />DOOR TYPE EXTERIOR ADJACENT 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 /> c --:~5:9 . .9 11-12.9 1,6 10-13,9 1.2 1.3
<br /> -.".
<br />INSULATED 5,1 4.0 26-?Q..Q. ,7 13-18.9 1,5 14-20,9 ,7 ,7
<br /> 3(1'-37.9 ' ') ('.6~) 19-25,9 1,1 21 & UD .4 .3
<br /> ~&Uo ,4 26-29.9 ,6
<br /> ~nR.lln 4
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS (WPMl
<br />SLAB-ON-GRADE RAISED RAISED WOO[)2
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL wi UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-Y ALUE WPM R-VALUE WPM R.VALUE WPM WPM WPM
<br />0-2,9 25 0-2.9 4.0 0-6.9 7.9 1.8 5.3
<br />3.4,9 -1] 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 R. Iln _? 7 7 R. Iln R lQ R.lln Q ~ 1 n
<br />
<br />WPM)
<br />
<br />6A-1S INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />. INFILTRATION PRACTICE WPM
<br />SEE TABLE 6A-21
<br />PRACTICE_Ill
<br />PRACTICE It
<br />
<br />6A.16 DUCT MULTIPLIERS (oMl
<br />
<br />"
<br />
<br />6,2
<br />4,1
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPA&e,
<br />
<br />R-VALUE
<br />4,2-5.9
<br />6.0-6,6 -;:J
<br />6.MUo
<br />4,2-5.9
<br />6.0-6,6
<br />I': 7 R. Iln
<br />
<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1.14
<br />1.10
<br />1.09
<br />1.10
<br />1.07
<br />1M
<br />
<br />RETURN DUCTS
<br />IN CONDITIONED SPACE
<br />1,10
<br />1.07
<br />1,06
<br />1,00
<br />1.00
<br />100
<br />
<br />SUPPLY DUCTS IN
<br />CONDITIONED SPACE'
<br />
<br />6A-17 HEATING SYSTEM MULTIPLIERS (HSMl
<br />SYSTEM TYPE
<br />Central Heat
<br />Pump Units
<br />
<br />PTHP
<br />
<br />HSPF
<br />HSM
<br />HSPF
<br />HSM
<br />-.l;OP
<br />HSM
<br />
<br />6.40-6,79
<br />.53
<br />9.90-10.39
<br />.34
<br />2.50-2,69
<br />.40
<br />
<br />HEATING SYSTEM MULTIPLIERS 1HSM1,--
<br />6.80-6.89 6.90-7,39"\ 7.40-7.89 7,90-8,39
<br />50 l .49 ) .46 _ ~,43
<br />10.40-10,89 ~ro:90-11,39 11,4D-1L8!L..1.!1Q-12,39
<br />.33 -~f-'_JL..___ __~__ ----029
<br />2.70-2.89 2.90-3.09 3.10-3.29 ---.1..30-3.49
<br />~ - ~ ~ ~
<br />
<br />8.40-8,89
<br />,41
<br />12.40 & uo
<br />
<br />8.9-9.39
<br />.38
<br />
<br />-
<br />9.4-9,89
<br />.36
<br />
<br />,28
<br />
<br />3,70-3.89 J_1~~i9~-
<br />.27 ,26,
<br />
<br />f-~ectric Strio 1,0
<br />
<br />Gas & LP Gas ... __ n__ __ ___ --____M (See IaQl.!16A__18 for C.@git_MMitiplier) __ ._n_. .-u_____~__u_
<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 />3,50-3.69
<br />.29
<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.
<br />
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