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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 />~ OH RATIO 1,0 ,11 ,12 ,17 ,18 ,26 I ,27 ,35 ,36 .46 .4 7 ,57 ,58 .70 I .71 ,83 I ,84 1.18 1.19 1. 72 1.73 2.73 2.74+
<br />. SINGLE PANE GLASS
<br />, N 1,0 1,03 1.05 ,1,08 1,10 1,13 115 1,18 1.20 1,24 1.29 1,34
<br />.
<br />. NE/NW 1.0 1.07 1,10 115 1.20 1.25 1,30 1.35 1.39 1.50 1.59 1.67
<br />.
<br />. E/W 1,0 ,71 ,57 ,19 -,20 -,65 -1.05 -1.48 -203 -3,01 -4,06 -5,04
<br />.
<br />>-, SE/SW 1,0 ,93 ,90 ,80 ,68 ,54 .39 ,22 ,05 -.33 -.71 -1.01
<br />ID, S 1,0 ,95 ,92 ,83 .70 ,54 ,36 ,13 -,13 -.70 -,98 .1nCl
<br />1-0::
<br />fila OOUBLE PANE GLASS
<br />u:ll
<br />(/). N 1.0 1.05 1.07 111 114 1,18 1.21 1.24 1.28 1.34 1.40 1.47
<br />.
<br />. NE/NW 1,0 1,11 1,16 1.24 1.32 1.41 1.48 1.56 1.63 1,80 1.94 208
<br />. E/W 1,0 ,88 ,82 ,66 ,50 .31 ,15 -03 -.26 -,66 -1,10 -1.50
<br />.
<br />. SElSW 1.0 ,95 ,92 ,85 .76 ,65 ,54 .41 .28 -01 -,30 -,52
<br />.
<br />. S 1.0 ,96 ,94 ,87 .78 ,65 ,51 ,33 ,13 -,30 ,51 ,60
<br />. OH LENGTH' o It. 1 It. 11f21t. 2 It. 3 It. 3V2 It. 41f2 It 51f2 It. 6V2 It. 91f2 It. 14 It. 20 It. +
<br /> * To select by Overhang Length, no part of glass shall be more than 8 It. below the overhang
<br />
<br />OVERHANG RATIO =
<br />
<br />
<br />OH LENGTH
<br />OH HEIGHT
<br />
<br />I~L
<br />
<br />H
<br />
<br />J
<br />
<br />9C WALL WINTER POINT MULTIPLIERS (WPM)
<br />FRAME
<br />
<br /> WOOD STEEL
<br />R.YALUE EXT ADJ EXT ADJ
<br />0- 69 6,8 5,3 9.4 6.7
<br />7 - 10,9 2,5 2,1 4.4 3.3
<br />11 -12,9 2,0 18 3.3 2,6
<br />13 -18,9 18 1,6 3,0 2.4
<br />19.25,9 1.1 1,0 2,6 22
<br />26 & U .7 .7 1.4 12
<br />
<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
<br />
<br />9F FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />
<br />01
<br />
<br />CONCRETE BLOCK'
<br />INT. INSULATION EXT.INSUL.
<br />NORMAL WT. NOR. WT.
<br />EXT ADJ EXT
<br />6,0 3,1 6,0
<br />3,8 2,3 2,8
<br />29 1,9 2,0
<br />2.3 15 15
<br />1,5 1.1 ,8
<br />8 .7
<br />,5 ,5
<br />
<br />FACE BRICK
<br />R.YALUE WOOD FR
<br />o - 6,9 7.0
<br />7 - 10,9 2,1
<br />11 . 18,9 1.7
<br />19.259 1,0
<br />26 & Up6
<br />R.YALUE BLOCK
<br />o - 2,9 3.7
<br />3 - 6,9 2,6
<br />7 - 99 18
<br />10 & Up 13
<br />
<br />
<br />LOG
<br />6 INCH
<br />R.YALUE
<br />0.29
<br />3 - 69
<br />7 & Up
<br />8 INCH
<br />R.YALUE
<br />0-2,9
<br />3 - 6,9
<br />7& Up
<br />
<br />EXT
<br />2.2
<br />12
<br />9
<br />
<br />EXT
<br />12
<br />9
<br />.7
<br />
<br />
<br />9E CEILING WINTER POINT MULTIPLIERS (WPM)
<br />
<br />UNDER ATTIC SINGLE ASSEMBLY
<br />R.YALUE WPM R.YALUE WPM
<br />19 - 21,9 1,0 10 -109 1.8
<br />22-25,9 .9 11-12,9 1.6
<br />26-29,9 .7 13.18,9 1.5
<br />30 - 37,9 ,6 19 - 25,9 1.1
<br />38 & U .4 26 & U ,6
<br />
<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 RAISED WOOD2
<br />EDGE INSULATION CONCRETE POST OR PIER I STEM WALL WI UNDER I
<br />R.YALUE WPM R.YALUE WPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.YALUE WPM I 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 15 I ,5 I 18
<br />7 R. Iln - 2.7 7 R. Un .8 19 & Up ,9 I 3 I 1,0
<br />
<br />9G INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />
<br />INFIL TRA TION PRACTlC'E WPM
<br />(See Table 9P)
<br />PRACTICE # 1 6.2
<br />PRACTICE # 2 4.1
<br />PRACTICE # 3 2.2
<br />
<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 Space" 6.7 & up 1.06 1.00
<br />
<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 />" Ducts in conditioned space need to be insulated only to the R-Value necessary to prevent condensation,
<br />-5 -
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