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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />9B WINTER OVERHANG FACTORS (WOF)
<br />
<br />CLIMATE ZONE$ 4 5 6
<br />
<br />~ OH RATIO 1,0-,11 .12-,17 ,1B-,26 I ,27-,35 .36- ,46 ,47-,57 ,58 .70 I .71 ,B3 I,B4-1,1B 1.19 "1.72 1.73 2.73 2.74+
<br />. SINGLE PANE GLASS
<br />I N 1,0 1.03 1.05 ,1,OB 1,10 1,13 1.15 1.1B 1.20 124 1.29 1.34
<br />.
<br />. NElNW 1.0 1.07 1.10 1.15 1.20 1,25 1.30 1.35 1.39 150 1.59 1.67
<br />.
<br />. E/W 1.0 .71 ,57 ,19 -.20 -.65 -1.05 -1.4B -2,03 -3,01 -4,06 -5,04
<br />.
<br />>-1 SElSW 1,0 .93 ,90 .BO ,6B ,54 .39 .22 ,05 -.33 -.71 -1,01
<br />rol S 1,0 ,95 ,92 ,B3 ,70 ,54 .36 ,13 -,13 -.i0 -,98 -109
<br />1-0::
<br />a:: 0 DOUBLE PANE GLASS
<br />u:l.
<br />(/). N 1.0 1.05 1.07 1.11 1.14 1.1B 1.21 1.24 1.2B U4 1.40 1.47
<br />.
<br />. NElNW 1.0 1.11 1.16 1.24 1.32 1,41 1,48 1.56 1.63 1.BO 1.94 2,OB
<br />. ElW 1.0 .88 ,82 ,66 ,50 .31 .15 -,03 -,26 -.136 -1.10 -1.50
<br />.
<br />. SElSW 1.0 ,95 ,92 ,B5 ,76 ,65 .54 ,41 ,2B -,01 -.30 -,52
<br />.
<br />. S 1,0 ,96 ,94 ,B7 .78 ,65 ,51 .33 ,13 -.30 -,51 -,60
<br />... OH LENGTH' 011. 1 It 1112 It 2 It 3 It 3Y2 It 4112 It 5Y2 It 6112 It 9112 ft 14 It 201t,+
<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 />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- 6.9 68 5.3 9.4 6.7
<br />7 -10.9 2.5 2,1 4.4 3.3
<br />11 - 12.9 2.0 1,8 3.3 2.6
<br />13 -18,9 1.8 1.6 3,0 2.4
<br />19 - 25.9 1.1 1.0 2.6 22
<br />26 & U .7 .7 1.4 1.2
<br />
<br />9D DOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7.6 59
<br />INSULATED 5.1 40
<br />
<br />9F FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />
<br />.
<br />
<br />
<br />01
<br />
<br />CONCRETE BLOCK1
<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 />2.9 1.9 20
<br />2.3 1.5 1.5
<br />1.5 1.1 ,8
<br />.8 .7
<br />.5 .5
<br />
<br />FACE BRICK
<br />R.YALUE WOOD FR
<br />0- 6.9 7.0
<br />7 - 10.9 21
<br />11 - 18.9 1.7
<br />19 - 259 1.0
<br />26 & Up .6
<br />R.YALUE BLOCK
<br />0-29 3.i'
<br />3 - 69 2.6
<br />7 - 9,9 lE
<br />10 & Up U
<br />
<br />
<br />LOG
<br />6 INCH
<br />R.YALUE
<br />0-2.9
<br />3 - 69
<br />7 & Up
<br />BINCH
<br />R.YALUE
<br />0.29
<br />3 - 69
<br />7&U
<br />
<br />EXT
<br />2.2
<br />1.2
<br />.9
<br />
<br />EXT
<br />1.2
<br />.9
<br />.7
<br />
<br />
<br />9E CEILING WINTER POINT MULTIPLIERS (WPM)
<br />
<br />UNDER ATTIC SINGLE ASSEMBLY
<br />R.VALUE WPM R.VALUE WPM.
<br />19-21,9 1.0 10-10,9 1,B
<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 WOOD'
<br />EDGE INSUL TION CONCRETE POST OR PIER I STEM WALL WI UNDER I
<br />R.VALUE WPM R.VALUE WPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.YALUE WPM I WPM
<br />0-2.9 2.5 0-2,9 4.0 0- 6.9 79 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 II. Iln - 2.7 7 & Uo .8 19 & Up .9 r .3 I 1.0
<br />
<br />9G INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />
<br />INFIL TRA TION PRACTIC'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 Space3 6.7 & up 1.06 1.00
<br />
<br />1 For multipliers lor 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.
<br />-5 -
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