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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />9B WINTER OVERHANG FACTORS (WaF)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />~ OH RATIO .0 ,11 .12 ,17 ,18 .26 .27 .35 .36.46 1.47 .5V' ;;.q: ]If"'! .71 .83 .84 1.18 I 1.19 1.72 1.73 2.73 I C?7A D
<br />I SINGLE PA
<br />I
<br />I N 1.0 1.03 1.05 .1,08 1.10 1.13 1,15 1,18 1.20 1.24 1.29 1.34
<br />I NE/NW 1.0 1.07 1,10 1.15 1.20 1.25 1.30 1,35 1.39 1.50 1.59 1.67
<br />I
<br />I E/W 1.0 ,71 ,57 ,19 -.20 -.65 -1.05 -1.48 -2.03 -3.01 -4.06 -5,04
<br />I SE/SW
<br />>-1 1.0 .93 ,90 .80 ,68 ,54 .39 .22 .05 -,33 -,71 -1.01
<br />CDI S 1.0 .95 ,92 .83 .70 .54 .36 .13 -.13 .70 .98 -10~
<br />I-cr:
<br />~o DOUBLE PANE GLASS
<br />u::ll
<br />enl N 1.0 1.05 1.07 1,11 1,14 1.18 1.21 1.24 1.28 1.34 1.40 1.47
<br />I
<br />I NE/NW 1.0 1.11 1.16 1.24 1.32 1.41 1.48 1.56 1.63 1.80 1.94 2,08
<br />I E/W 1,0 ,88 .82 .66 ,50 ,31 ,15 -.03 -.26 -.66 -1.10 -1.50
<br />I
<br />I SE/SW 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' o It 1 ft. 1112 It 2 It 3 ft. 3Yz It 4112 ft 5112 It 6112 It 9Yz It 14 It 20ft.+
<br /> * To select by Overhang Length. no part of glass shall be more than 8 ft below the overhang,
<br />
<br />
<br />
<br />
<br />OH LENGTH
<br />OH HEIGHT
<br />
<br />r~L
<br />
<br />H
<br />
<br />J
<br />
<br />OVERHANG RATIO =
<br />
<br />01
<br />
<br />9C WALL WINTER POINT MULTIPLIERS (WPM)
<br />FRAME
<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 />38 2.3 2,8
<br />2,9 1.9 2,0
<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 />O. 6.9 7.0
<br />7 -10,9 2,1
<br />11 -18,9 17
<br />19 - 25,9 1.0
<br />26 & Up ,6
<br />R.YALUE BLOCK
<br />0-29 37
<br />3 ' 6,9 2,6
<br />7,9,9 1,8
<br />10 & Up 1.3
<br />
<br /> WOOD STEEL
<br />R.YALUE EXT ADJ EXT ADJ
<br />0- 69 6,8 5,3 9.4 67
<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 />LOG
<br />6 INCH
<br />R,YALUE
<br />0'2,9
<br />3 - 6,9
<br />7 & Up
<br />8 INCH
<br />R.YALUE
<br />0-2,9
<br />3 - 69
<br />7&U
<br />
<br />
<br />EXT
<br />2,2
<br />1,2
<br />9
<br />
<br />
<br />EXT
<br />1,2
<br />9
<br />7
<br />
<br />1*%:~{~ ~:: ~nt(fdM
<br />
<br />90 DOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />9E CEILING WINTER POINT MULTIPLIERS (WPM)
<br />UNDER ATTIC SINGLE ASSEMBLY
<br />R.VALUE WPM R-VALUE WPM
<br />1.0 10 10,9 1.8
<br />.9 11 - 12,9 1.6
<br />.7 13.18.9 1.5
<br />.6 19 - 25,9 1.1
<br />.4 2 & U .6
<br />
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7,6 5,9
<br />INSULATED 5,1 4,0
<br />
<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 />9F FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />SLAB-QN.GRADE RAISED RAISE If WOOD'
<br />EDGEINSUL TION CONCRETE POST OR PIER STEM WALL WI UNDER I
<br /> WPM R-VALUE WPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-VALUE R,YALUE WPM I WPM
<br />0-2.9 2.5 0-2.9 4.0 0- 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 21
<br />5 - 6.9 - 2.4 5 - 6,9 1.1 11 -18.9 1,5 I 5 I 1.8
<br />7 R. Iln 2.7 7 P. Un .8 19 & Up ,9 I ,3 I 1,0
<br />
<br />9H DUCT MULTIPLIERS (OM)
<br />
<br />9G INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<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 />Ducls in 6.0-6.6 1.07 1.00
<br />Conditioned Space3 6.7 & up 1.06 1.00
<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 />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.
<br />-5 -
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