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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />98 WINTER OVERHANG FACTORS (WOF)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />~ OH RATIO ,0-,11 ,12-,17 I ,18-,26 ,27 ,35 I ,36-.46 .47 ,57 ,58 .70 1,71 ,83 1.84 1.18 1.19 1.72 I 1.73 2,73 2,74+
<br />. SINGLE PANE GLASS
<br />I N lO l03 1,05 ,l08 1.10
<br />. 1.13 1.15 1.18 1.20 l24 l29 1.34
<br />. NElNW lO 1,07 1,10 1.15 l20 l25 l30 1.35 1.39 l50 l59 1,67
<br />.
<br />. E/W lO ,71 ,57 ,19 -,20 -,65 -l05 -1.48 -2,03 -3.01 -4,06 -5,04
<br />.
<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 />I-a:
<br />&30 OOUBLE PANE GLASS
<br />u:ll
<br />(/). N lO l05 l07 1,11 l14 1.18 l21 1,24 1,28 1.34 1.40 1.47
<br />I
<br />. NElNW lO 1,11 1.16 l24 l32 1.41 1.48 l56 l63 l80 194 2.08
<br />. ElW lO ,88 ,82 ,66 .50 .31 ,15 -03 -.26 -,66 -1.10 -l50
<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. 1112 It. 2 It. 3 It. 3112 It. 4112 It 5112 It. 6112 It. 9112 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 />r~L
<br />H
<br />
<br />j
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<br />9C WALL WINTER POINT MULTIPLIERS (WPM)
<br />
<br />
<br />
<br />01
<br />
<br /> FRAME CONCRETE BLOCKl FACE BRICK
<br /> WOOD STEEL INT. INSULATION EXT. INSUL. R.YALUE WOOD FR LOG
<br /> NORMAL WT. NOR. WT. 0- 6.9 7.0 6 INCH
<br />R.YALUE EXT ADJ EXT ADJ
<br />R.YALUE EXT ADJ EXT 7 - 10,9 21 R.YALUE EXT
<br />0, 6.9 6.8 5,3 9.4 6.7
<br /> 6.0 11 -18.9 1.7 0-2.9 2.2
<br />7 - 10,9 2.5 2,1 4.4 33 0- 2.9 6.0 3.1
<br />11 -12,9 2.0 1,8 3.3 2.6 3 - 4.9 3.8 2.3 2.8 19 - 25.9 1.0 3 - 6.9 1.2
<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 />19 - 25.9 1.1 1.0 2,6 22 7 -10.9 2.3 1.5 1.5 R.YALUE BLOCK 8 INCH
<br />26 & Uo .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 ~1t1if@~1~$ill 3 - 6.9 2.6 0-29 1.2
<br /> 26 & Up ,5 .5 j~#i1i\~1@tlt;ij 7 - 9.9 1.8 3,6.9 .9
<br /> ,', 'W..W ~lt#t-:h:~~il ~~j{jtt1j~tj~ !$t.:wii?,h:MJ 10 & Up 1.3 7& Up .7
<br /> ,
<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 />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 1.6
<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 /> CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.VALUE WPM R.VALUE WPM R.YALUE WPM I 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 2.1
<br />5 - 6.9 2.4 5 - 6.9 1.1 11 -18,9 1.5 I .5 r 1,8
<br />7 & Uo 2.7 7 & Un .8 19 & Up .9 I .3 1 1.0
<br />
<br />9G INALTRATION WINTER POINT MULTIPLIERS (WPMI
<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 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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