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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />tAc10 - WINTER OVERHANG FACTORS (WOF)
<br /> r OH RATIO .00-,11 .12..17 ,18,,26 27-,35 .36-.46 ,47-.57 ,58-,70 I .71-.83 I ,84-1.18 11.19-1,72 11,73-2.73 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 LOO 1,07 1,10 1,15 1,20 1,25 1.30 1,35 1,39 1.50 1,59 1.67
<br /> ENJ 1.00 .71 .57 .19 -,20 -,65 -L05 -1.48 -2.03 -3.01 -4,06 -5,04
<br />> SE/SW LOO .93 .90 .80 ,68 ,54 ,39 .22 .05 -,33 -,71 -1,01
<br />aJ ,36 .13 -.13 -.70 -,98 -L09
<br />~~ S 1.00 .95 .92 .83 .70 ,54
<br />wO DOUBLE PANE GLASS
<br />..J, 1,14 1.18 1.21 1.24 1,28 1.34 1.40 1.47
<br />~I N 1.00 1.05 1,07 1.11
<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 /> l EtN 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' 011. 1 It l%ft, 2ft, 3 ft. 3Y2ft, 4Y2ft. 5Y2ft, 6% ft. 9%ft, 14ft. 20ft,+
<br /> 'TO SELECT BY OVERHANG LENGTH. NO PART OF GLASS SHALL BE MORE THAN 8 Fr, BELOW THE OVERHANG,
<br />
<br />6A.11 WALL WINTER POINT MULTIPLIERS (WPM)
<br /> FRAME CONCRETE BLOCK' FACE BRICK LOG
<br /> INT. INSULATION I'XT. INSUL R.VALUE WOOD FR
<br /> WOOD STEEL NORMAL WT. NOR. WT. 0-6.9 7.0 6 INCH
<br />R-VALUE EXT 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 L7 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 LO 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 & Uo .6 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.V ALUE 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& Uo ,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 /> 10 R.lJn 1~ 7 R. LJn 7
<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 (WPMl
<br />UNDER ATTIC 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 & UP .4 ,3
<br />38 & Uo .4 26-29.9 .6
<br /> ~OR.lln 4
<br />
<br />6A.14 FLOOR WINTER POINT MULTIPLIERS (WPMl
<br />SLAB.ON.GRADE RAISED RAISED WOOO>
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL wi UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R.V ALUE 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 1.8 5.3
<br />3-4,9 -L7 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.1Jn -? 7 7 R.lJn R HI R. LJn Q ~ 10
<br />
<br /> 6A.16 DUCT MULTIPLIERS (OM)
<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 /> 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 /> R7R.IJn 1 OF; 100
<br />6A-17 HEATING SYSTEM MULTIPLIERS (HSMl
<br />~YS~M TVP_~______ -_._. HEATING SYSTEM MULTIPLIERS (HSMl --
<br />Central Heat HSPF 6.40-6,79 6.80:~ _.6.90-7.39 1.40-7.89 7.90-8.39 8.40-8.89 8.9-9.39 9.4-9~L
<br />Pump Units HSM ___c~L ~~Q- _A~ --- - ,~.Q ,43 ..._. __Al__ --~-- .. .~6
<br /> ---.
<br /> "----- H~Pf__ 9.90-10,3L 10.40-10.89 10,90-11,39 11.40-11,89 J.ilQ~ 12.39 12,40 & UP
<br />.__.__.~-------_._-_._.-. -~-".._~ HSM .34 .33 - .31 .30 .29 28
<br /> _._------
<br />PTHP .. COp 2,50-2.6!l._ 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 lor Credit Multiplier)
<br /> MINIMUMS: CENTRAL UNITS-AIR SOURCE SPLIT SYSTEM 6,8 HSPF, SINGLE PKG, 6,6 HSPF, WATER SOURCE 3,8 COP, GROUND WArER SOURCE 3.4 COP, PTHP SEE TABLES 6-6 TO 6.8, ----.
<br />
<br />6A.15 INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />, INFILTRATION PRACTICE WPM
<br />SEE TABLE 6A.21
<br />PRACTICE #1 6.2
<br />PRACTICE #2 4,1
<br />
<br />1 FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2,1 OF APPENDIX C, 2 MUL TIPUERS FOR OTHER TYPES OF RAISED WOOD ASSEMBUES 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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