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<br />~ .
<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 456
<br />
<br />,INTER OVERHANG FACTORS (WGF)
<br />
<br />.. OH RATIO .0-.11 I .12-.17 .16-.26 I .27-.35 .36-.46 I .47-.57 ~.01-.63 1.64-1.16 1.19-1.72 I 1.73-2.73. 2.74+
<br />1 SINGLE PANE~
<br />1 N 1,0 1.03 1.05 1.08 1.10 1.13 1.15 1.16 1.20 1.24 1.29 1.34
<br />1
<br />1 NElNW 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 />1
<br />1 E1W 1.0 .71 ,57 ,19 -,20 -.65 -1.05 -1.46 -2.03 -3.01 -4.06 -5.04
<br />1 SElSW 1.0 ,93 ,90 .60 ,66 ,54 ,39 .22 .05 -,33 -.71 -1.01
<br />>-1
<br />col S 1.0 ,95 .92 .63 .70 ,54 .36 .13 -.13 -.70 -.98 -10Q
<br />>-cc
<br />~o DOUBLE PANE GLASS
<br />u:J1
<br />(/)1 N 1.0 1.05 1.07 1.11 1.14 1.16 1.21 1.24 1.26 1.34 1.40 147
<br />I NElNW 1.0 1.11 1.16 1.24 1.32 1.41 1.46 1.56. 1,63 1.60 1.94 208
<br />I
<br />I eJW 1.0 ,68 ,62 .66 ,50 ,31 ,15 -.03 -.26 -.66 -1.10 -1.50
<br />I
<br />I SElSW 1.0 ,95 .92 ,65 .76 ,65 ,54 .41 .26 -.01 -.30 -.52
<br />1 .33 .13 -.30 -.60
<br />I S 1.0 .96 .94 .67 .76 ,65 .51 -.51
<br />~ OH LENGTH' o It. 1 It. l1h It. 2 It. 3 fl. 31h It. 41h It 51h It. 61h II 9\12 It. 14 ft. 20 fl+
<br /> . To select by Overhang Length. no pan of glass shall be more than 8 ft. below the overhang
<br />
<br />
<br />
<br />
<br />OH LENGTH
<br />OH HEIGHT
<br />
<br />I~L
<br />
<br />H
<br />
<br />J
<br />
<br />--?
<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 />3.1 6.0
<br />2.3 2.8
<br />1.9 2.0
<br />1.5 1.5
<br />1.1 .6
<br />.7
<br />.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 />19.25.9 1.0
<br />26 & Up6
<br />R.YALUE BLOCK
<br />o . 2.9 3.7
<br />3 . 6.9 26
<br />7.9.9 1.8
<br />10 & Up 1.3
<br />
<br />LOG
<br />6 INCH
<br />R,YALUE
<br />0.29
<br />3.6.9
<br />7 & Up
<br />81NCH
<br />R.YALUE
<br />0.2.9
<br />3.69
<br />7& Up
<br />
<br />WOOD
<br />EXT
<br />6.8
<br />2.5
<br />2.0
<br />1.8
<br />1.1
<br />.7
<br />
<br />STEEL
<br />EXT ADJ
<br />9.4 6.7
<br />4.4 3.3
<br />3.3 2.6
<br />3.0 2.4
<br />2.6 2.2
<br />14 12
<br />
<br />
<br />R,YALUE
<br />O. 6.9
<br />7.10.9
<br />11.12.9
<br />13.18.9
<br />19.25,9
<br />26 & U
<br />
<br />
<br />EXT
<br />22
<br />12
<br />9
<br />
<br />EXT
<br />12
<br />9
<br />.7
<br />
<br />90 DOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />9E CEILING WINTER POINT MULTIPLIERS (WPM)
<br />
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7,6 5.9
<br />INSULATED 5.1 4.0
<br />
<br />UNDER ATTIC
<br />R.YAlUE WPM
<br />19.21.9 1,0
<br />22 . 25.9 .~
<br />26.29.9 .7
<br />30 . 37.9 ,6
<br />38 & U .4
<br />
<br />SINGLE ASSEMB.l Y
<br />R.VA.lUE WPM_
<br />10 -10,9 1.6
<br />11 . 12,9 1,6
<br />13 .18.9 1,~
<br />19.25.9 1,1
<br />26 & U ,6
<br />
<br />CONCRn.~QECl<.JI.QOF
<br />l;1;!lJNG_D'PI;
<br />D8.QPPE.Q EX~Qj).~Q
<br />1.2 1.3
<br />,7 .7
<br />
<br />
<br />9F FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />SLAB-ON.GRADE RAISED RAISED WOOD'
<br />EDGE INSUL nlON CONCRETE POST OR PIER STEM WALL WI UNDER
<br />R.VAlUE WPM R.VALUE WPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br /> 2.5 0.2.9 R.vALUE WPM WPM WPM
<br />0.2,9 4,0 O. 6.9 79 IjR;t"$iNl1ff}: ~' ~ ~::: ::::::;;:~;;;::::;;::~.:::: 53
<br />3.4,9 - 1,7 3.4,9 1,8 7.10.9 2.1 .7 21
<br />" . ".cl 2.4 5.6,9 1,1 11 .18.9 1.5 .5 1.8
<br />7 & lJn - 2.7 7 & Uo .8 19 1St Up .9 3 10
<br />
<br />9G INFILTRATION WINTER POINT MULTIPLIERS (WPM) 9H DUCT MULTIPll~RS (OM)
<br />
<br />INFll TRA TlON PRACTICE WPM
<br />(See Table 9P)
<br />PRACTICE # 1 6,2
<br />PRACTICE # 2 4.1
<br />PRACTICE # 3 2,2
<br />
<br />R.VAlUE With Return WIO Return
<br />Air Duel Air Duel
<br />4,2.4,9 1.14 1.10
<br />5.0.6,6 1.12 1.08
<br />6,7 & Up 1.09 1.06
<br />DUCTS IN CONDITIONED SPACE 1.00 1,00
<br />
<br />I For multipliers for other types of concrete block construction see section 903,2 (b).
<br />2For multipliers for other types 01 raised wood assemblies see section 903.2 (e) 1
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