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<br />SUMMER POINT MULTIPLIERS (SPM)
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<br />9B SUMMER OVERHANG FACTORS (SOF) For single and double pane glass,
<br />
<br />~ OH RATIO ,0-,11 ,12-.17 .18-.26 .27-,35 .36- .46 .47-57 .58-10- ~71-.83 .84-1.18 119-1.72 173-273 274+
<br />. N 1.0 ,94 ,91 .87 .83 .79 7J ,72 ,69 .62 .56 .50
<br />>-.
<br />1%). NElNW 1.0 ,94 ,91 .85 .79 .72 .68 ,63 .58 50 .40 .36
<br />t-a: ElW 1.0 .95 ,92 ,85 .78 ,70 ,64 .58 ,52 .42 .33 .26
<br />frl9
<br />rd. SElSW 1.0 .93 ,90 ,81 ,72 ,62 ,55 .49 , 42 .33 .27 .22
<br /><I).
<br />. S 1.0 .91 ,87 .77 .67 .57 .50 .45 ,39 .32 .28 .25
<br />. OH LENGTH · o fl. 1 II. l1h ft. 2 II. 3 II. 31h ft. 41h ft, 51h ft. 61h ft. 9\11 II. 14 ft. 20 ft. +
<br /> . To select by Overhang Length. no pari of glass shall be more than 8 ft. below the overhang.
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<br />OVERHANG RATIO = OH LENGTH
<br />OH HEIGHT
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<br />r~L
<br />H
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<br />j
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<br />"-.... 9C WALL SUMMER POINT MULTIPLIERS (SPM)
<br />FRAME
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<br /> WOOD STEEL
<br />R.YALUE EXT ADJ EXT ADJ
<br />0- 6.9 6.4 2.2 8.9 2.9
<br />7 -10.9 2.3 .8 4.1 1.3
<br />11 -12.9 1.9 .7 3.0 1.0
<br />13 - 18.9 1.7 .6 2.8 0,9
<br />19 - 25.9 1.0 .3 2.4 0.8
<br />26 & U .6 2 1.3 0.4
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<br />CLIMATE ZONES 4 5 6
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<br />
<br />
<br />01
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<br />R,YALUE
<br />0- 2.9
<br />3 - 4,9
<br />5 - 6.9
<br />7 -10.9
<br />11 -18.9
<br />19 - 25.9
<br />26 & Up
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<br />CONCRETE BLOCK I
<br />INT, INSULATION EXT. INSUL,
<br />NORMALWT, NOR,Wt
<br />EXT ADJ EXT
<br />2.5 .9 2.5
<br />1.4 ] .7
<br />In J .3
<br />.8 .4 .1
<br />.4 .3 .0
<br />.22
<br />.1 ,1
<br />
<br />EXT
<br />10
<br />8
<br />7
<br />
<br />FACE BRICK
<br />R,YALUE WOOD FR
<br />0- 6.9 2.9
<br />7 -10.9 .6
<br />11 - 18.9 .4
<br />19 - 25.9 .2
<br />26 & U .1
<br />R,YALUE BLOCK
<br />0- 2.9 1.0
<br />3 - 6.9 .6
<br />7. 9.9 .4
<br />10 & UP2
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<br />LOG
<br />6 INCH
<br />R,YALUE
<br />O. 2.9
<br />3. 6,9
<br />7 & U
<br />a INCH
<br />R.YALUE
<br />0.2.9
<br />3.6.9
<br />7 & Up
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<br />EXT
<br />17
<br />1.1
<br />.8
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<br />90 DOOR SUMMER POINT MULTIPLIERS (SPM) 9E CEILING SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />DOOR TYPE ~XTERIOR ADJACENT
<br />WOOD 7.2 2.4
<br />INSULATED 4.8 1.6
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<br />UNDER A mc SINGLE ASSEMBLY CONCRETE DECK ROOF
<br />R.VALUE SPM R-VALUE SPM CEILING TYPE
<br />. 19.21,9 1.1 10 -10.9 3.0 R-VALUE DROPPED EXPOSED
<br />_22 . 25~9 .9 11.12,9 2.7 10 - 13.9 3.0 3.3
<br />26 . 29.9 ] 13 - 18.9 2.4 14.20.9 2,0 21
<br />30 . 37,9 ,6 19 - 25.9 1.8 21 & Up 1.4 1.3
<br />38 & Up .4 26 & Uo 1.1 E.'....,.( V'(
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<br />
<br />9G INFILTRATION SUMMER POINT MULTIPLIERS (SPM) 9H DUCT MULTjPLIERS (OM)
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<br />INFIL TRA TlON PRACTICE SPM
<br />(See Table 9P)
<br />PRACTICE # 1 13.8
<br />PRACTICE # 2 10,9
<br />PRACTICE # 3 7,6
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<br />R.VALUE With Return WIO Return
<br />Air Duct AirQ~
<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
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<br />'For multipliers for other types 01 concrele block construction see section 903.2 (b).
<br />2For multipliers lor olher types of raised wOOd assemblies see section 903.2 (e) 1.
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