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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />9B WINTER OVERHANG FACTORS (WOF)
<br />
<br />/'
<br />
<br />-'
<br />,
<br />b
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br /> ,....------- --
<br />~ OH RATIO 1.0-.11 .12-17 - .18-?6! .27-.35 .36- 46 1.47-.57 58- .70 1.71-,83 (1 .84- 118 V, 1.19-1.72 ) 1.73-2.73 2.74+
<br />. SINGLl PANE GLASS
<br />. N 1.0 103 1.05 ,108 1.10 1.13 1.15 118 120 124 129 1.34
<br />. .
<br />. ~~,-,~.
<br />NE/NW 10 107 1.10 .-L!5_ 120 125 1.30 1.35 1.39 1.50 1.59 1.67
<br />I ,_. -,,,_... - .- -- -~-- - --- ----,-- ,- _. --
<br />. E/W 10 .71 .57 ,19 -20 -.65 -105 -148 -2.03 -3,01 -4.06 -5.04
<br />I
<br />>-. SElSW 1.0 .93 .90 .80 .68 .54 .39 ,22 .05 -.33 -.71 -101
<br />CD. S 10 95 .92 ,83 .70 ,54 .36 .13 -.13 -.70 -,98 .1 nQ
<br />I-a::
<br />f..3o OOUBLE PANE GLASS
<br />;:dl
<br />(/). N 1.0 1.05 107 111 1.14 1.18 1.21 1.24 128 1.34 1.40 147
<br />.
<br />. NElNW 10 111 1.16 124 1.32 141 148 156 163 180 1.94 2.08
<br />I E/W 10 .88 .82 ,66 ,50 .31 ,15 -,03 -.26 -,66 -1.10 -1.50
<br />.
<br />. SElSW 10 .95 ,92 ,85 .76 ,65 .54 41 .28 -,01 -.30 -.52
<br />.
<br />I S 10 .96 .94 .87 .78 .65 .51 .33 .13 -.30 -.51 -.60
<br />~ OH LENGTH' o It. lIt. 1'12 It. 2 It. 3 ft. 3'12 ft, 4'12 ft 5Y2 ft. 6Y2 ft. 9'12 It. 14 ft. 2011.+
<br /> . To select by Overhang Length no part 01 glass shall be more than 8 II. below the overhang
<br />OVERHANG RATIO = OH LENGTH 41T
<br />OH HEIGHT
<br /> r~L J ~~~ ! ~
<br /> H 01- H
<br /> J ~~
<br /> 're, I
<br />
<br />9C WALL WINTER POINT MULTIPLIERS (WPM)
<br />
<br />R.YALUE
<br />O. 69
<br />7 . 10.9-
<br />11 ,129
<br />13,189
<br />19,259
<br />26 & U
<br />
<br />FRAME
<br />~ . .-'-.--..---.
<br />WOOD..>
<br />. EXT
<br />68
<br />25
<br />20
<br />18
<br />1,1
<br />7
<br />
<br />STEEL
<br />EXT ADJ
<br />94 67
<br />44 33
<br />33 26
<br />30 24
<br />26 2.2
<br />14 12
<br />
<br />ADJ
<br />53
<br />2,1
<br />18
<br />1.6
<br />10
<br />7
<br />
<br />90 DOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />DOOR TYPE EXTERIOR ADJACENT
<br /> ,,--'....,,
<br />WOOD 76 ~
<br /> ,
<br />INSULATED , 5!.-) 40
<br />
<br />9F FLOOR WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CONCRETE BLOCK'
<br />INT. INSULATION EXT. INSUL.
<br />NORMAL WT. NOR, WT.
<br />EXT ADJ EXT
<br />60 3.1 6,0
<br />38 2.3 2.8
<br />2.9 19 2.0
<br />23 1.5 15
<br />15 1.1 .8
<br />8 7
<br />5 5
<br />
<br />FACE BRICK
<br />R.YALUE WOOD FR
<br />o - 6.9 70
<br />7'10.9 21
<br />11,18,9 17
<br />19, 259 1.0
<br />26 & Up .6
<br />R.YALUE BLOCK
<br />0,2.9 37
<br />3, 6.9 2.6
<br />7. 9.9 1.8
<br />10 & Up 13
<br />
<br />LOG
<br />61NCH
<br />R.YALUE
<br />0,2.9
<br />3,69
<br />7 & Up
<br />8 INCH
<br />R.YALUE
<br />0-29
<br />3-69
<br />7 & Up
<br />
<br />EXT
<br />22
<br />12
<br />9
<br />
<br />EXT
<br />12
<br />9
<br />7
<br />
<br />
<br />9E CEILING WINTER POINT MULTIPLIERS (WPM)
<br />
<br />
<br />UNDER ATTIC
<br />WPM
<br />1.0
<br />,9
<br />,7
<br />,6
<br />.4
<br />
<br />SINGLE ASSEMBLY
<br />R.VALUE WPM
<br />10 -10.9 18
<br />lLJ?9 1..6
<br />13-18,9 1.5
<br />19 . 25.9 1.1
<br />26 & U ,6
<br />
<br />CONCRETE DECK ROOF
<br />CEILING TYPE
<br />R.VALUE DROPPED EXPOSED
<br />J ()...:J]Q. 1,2 .J..J..._
<br />14,20,9 ,7 ,7
<br />
<br />.1Mj:~t;::~::;~~"~%f: W':::":~~f.~""'::i~*i~FHf
<br />
<br />
<br /> SLAB-ON-GRADE RAISED RAISED W ODz
<br /> EDGE INSULATION CONCRETE POST OR PIER I STEM WALL WI UNDER
<br /> R-VALUE WPM R-VALUE WPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />-- R.VALUE WPM Wll'M
<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 21
<br /> 5 - 6,9 - 2,4 5 - 6,9 1.1 11 ,189 1.5 r .5 1.8
<br /> 7 & Un - 2,7 7P. Un ,8 19 & Up .9 I .3 10
<br />
<br />96 INFilTRATION WINTER POINT MULTIPLIERS (WPM)
<br />
<br />INFILTRATION PRACTICE
<br />(See Table 9P)
<br />PRACTICE # 1
<br />PRACTICE # 2
<br />PRACTICE # 3
<br />
<br />WPM
<br />
<br />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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