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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />98 WINTER OVERHANG FACTORS (WaF)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br /> -- ,"-~ ,~.
<br />~ OH RATIO .0-,11 I ,12-,17 Y.18-?6.. ...lI27-,35( ,36- .46 J).47 -,57 .58-,70 .71 ,83 ,84 1.18 1.19 1.72 T 1.73 2.73 2.74+
<br />I SINGLE PANE GLASS
<br />I N 1,0 1.03 l05 ,l08 1.10 1.13
<br />I 1.15 1.18 l20 1.24 l29 l34
<br />I NElNW lO 1.07 1.10 1.15 l20 1.25 1.30 1.35 l39 1.50 l59 l67
<br />I
<br />I E/W lO .71 .57 ,19 -,20 -.65 -l05 - 1.48 -2,03 -3.01 -4.06 -5.04
<br />I
<br />>-1 SElSW lO .93 ,90 .80 .68 .54 .39 ,22 ,05 -.33 -.71 -l01
<br />COI S 1,0 .95 ,92 .83 ,70 ,54 .36 .13 -.13 -.70 -.98 -1 nq
<br />>-a::
<br />&30 DOUBLE PANE GLASS
<br />iIll
<br />enl N lO l05 l07 1.11 1.14 1.18 l21 l24 l28 l34 l40 1.47
<br />I
<br />I NElNW lO 1.11 1.16 l24 1.32 1.41 1.48 l56 1,63 l80 194 2,08
<br />I ElW lO .88 .82 ,66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50
<br />I
<br />I SElSW 1.0 .95 .92 ,85 .76 .65 .54 .41 .28 -.01 -.30 -.52
<br />I
<br />I S 1.0 ,96 .94 ,87 ,78 .65 .51 ,33 .13 -.30 -,51 -.60
<br />.. OH LENGTH' 011. 1 II. 11/2 II. 2 II. 3 II. 31/2 ft. 41/2 It 5Y2 II. 61/2 II. 91/2 II. 14 II. 2011.+
<br /> . To select by Overhang Length, no part of glass shall be more than 8 It. below the overhang.
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<br />OVERHANG RATIO =
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<br />
<br />OH LENGTH
<br />OH HEIGHT
<br />
<br />I~L
<br />
<br />H
<br />
<br />~
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<br />9C WALL WINTER POINT MULTIPLIERS (WPM)
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<br />
<br />
<br />.
<br />
<br />
<br />d1
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<br /> FRAME CONCRETE BLOCKl FACE BRICK
<br /> WOOD STEEL INT. INSULATION EXT. INSUL R.YALUE WOOD FR LOG
<br /> NORMAL WT. NOR. WT. O. 6.9 7.0 6 INCH
<br />R.YALUE EXT ADJ EXT ADJ
<br />O. 6.9 6.8 5.3 9.4 6.7 R.YALUE EXT ADJ EXT 7 -10.9 2.1 R.YALUE EXT
<br /> 11 -18.9 1.7 0.2.9 2.2
<br />7.10.9 2.5 2.1 4.4 3.3 O. 2.9 6.0 3.1 6.0
<br /> 19 - 25.9 1.0 3 - 6.9 1.2
<br />11.12.9 2.0 1.8 3.3 2.6 3. 4.9 3.8 2.3 2.8
<br />13 -18.9 1.8 1.6 3.0 2.4 5 - 6.9 2.9 1.9 2.0 26 & Up .6 7 & Up .9
<br /> R.YALUE BLOCK 8 INCH
<br />19.25.9 1.1 1.0 2.6 22 7.10.9 2.3 1.5 1.5
<br />26 & Un .7 .7 1.4 1.2 11.18.9 1.5 1.1 .8 0.2.9 3.7 R.YALUE EXT
<br /> 19.25.9 .8 .7 1m:::::\1ttliE: 3.6.9 2.6 0.2.9 12
<br /> 26 & Up .5 .5 MMlN1WfW 7 - 9.9 1.8 3 - 6.9 .9
<br /> ;"'P; WMh't*.MM WlkgtW'~ ..:~W;tf:t~tt:::::.. 10 & Up 1.3 7 & Up .7
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<br />90 DOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7.6 5.9
<br />INSULATED 5.1 4.0
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<br />9F FLOOR WINTER POINT MULTIPLIERS (WPM)
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<br />9E CEILING WINTER POINT MULTIPLIERS (WPM)
<br />UNDER ATTIC SINGLE ASSEMBLY
<br />R-VALUE WPM R-VALUE WPM
<br />19-21.9 1,0 10-10.9 l8
<br />22-25,9 ,9 11-12.9 1,6J
<br />26.29.9 ,7 13 - 18.9 1,5
<br />30 - 37.9 ,6 19.25.9 1,1
<br />38 & U ,4 2 & U ,6
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<br />CONCRETE DECK ROOF
<br />CEILING TYPE
<br />DROPPED EXPOSED
<br />1.2 1,3
<br />,7 ,7
<br />,4 ,3
<br />
<br />
<br />SLAB-oN-GRADE RAISED RAisE D WOOD'
<br />EDGE INSUL TION CONCRETE POST OR PIER STEM WALL WI UNDER I
<br /> CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.VALUE WPM R.VALUE WPM R.YALuE WPM WPM I WPM
<br />0-2,9 2,5 0-2,9 4,0 O. 6.9 7.9 5.3
<br />3 - 4,9 - 1.7 3 - 4,9 1,8 7.10.9 2.1 I .7 I 2.1
<br />5 - 6,9 2.4 5 - 6.9 1,1 11 .18.9 1.5 I .5 I 1.8
<br />7 & Iln 2,7 7 & Un .8 19 & Uo ,9 .3 I 1.0
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<br />9G INFILTRATION WINTER POINT MULTIPLIERS (WPM)
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<br />INFIL TRA TlON PRACTIC'E WPM
<br />(See Table 9P)
<br />PRACTICE # 1 6.2
<br />PRACTICE # 2 4,1
<br />PRACTICE # 3 2,2
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<br />9H DUCT MULTIPLIERS (OM)
<br />
<br /> Return Ducts Return Ducts
<br /> R-Value In Unconditioned Space In Conditioned Space
<br />Supply 4,2-5,9 1,14 1,10
<br />Ducts in 6,0-6,6 1,10 1,07
<br />Unconditioned Space 6,7 & up 1,09 1.06
<br />Supply 4,2-5,9 1,10 1,00
<br />Ducts in 6,0-6.6 1,07 1,00
<br />Conditioned Space3 6,7 & up 1.06 1,00
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<br />1 For multipliers for other types of concrete block construction see section 903,2(b),
<br />2 For multipliers for other types of raised wood assemblies see section 903.2 (e) 1,
<br />3 Ducts in conditioned space need to be insulated only to the R-Value necessary to prevent condensation,
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