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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.
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<br />CLIMATE ZONES 4 5 6
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<br />~ OH RATIO ,0 .11 ,12 ,17 ,18 ,26 ,27 .35 ,36- ,46 ,47 .57 ,58-.70 ,71-,83 ,84- 1.18 1.19- 1.72 1.73-2,73 2.74+
<br />I N 1.0 ,94 ,91 .87 ,83 ,79 .75 .72 ,69 ,62 ,56 ,50
<br />>-1 ,91 .85 .79 ,72 ,68 .63 ,58 ,50 ,40 ,36
<br />lDl NE/NW 1.0 .94
<br />f-a:: E/W 1.0 ,95 ,92 ,85 ,78 ,70 ,64 ,58 ,52 ,42 .33 .26
<br />frl.P
<br />u::ll SE/SW 1.0 ,93 ,90 ,81 ,72 ,62 ,55 ,49 ,42 ,33 ,27 .22
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<br />I S 1,0 ,91 ,87 ,77 ,67 .57 ,50 ,45 .39 .32 ,28 .25
<br />~ f1H LENGTH' o It, 1 It. 1% It. 2 It, 3 It, 3% It. 4% It, 5% It. 6% It. 9% It, 14 It, 201t,+
<br /> . To select by Overhang Length, no part of glass shall be more than 8 It, below the overhang.
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<br />OVERHANG RATIO = OH LENGTH
<br />OH HEIGHT
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<br />01
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<br />9C WALL SUMMER POINT MULTIPLIERS (SPMI
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<br />FRAME
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<br /> WOOD STEEL
<br />R.YALUE EXT ADJ EXT ADJ
<br />O. 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 />CONCRETE BLOCK1
<br />INT.INSULATION EXT.INSUL.
<br />NORMALW7. NOR.W7.
<br />EXT ADJ EXT
<br />2.5 ,9 2,5
<br />1.4 .7 .7
<br />1~ ~ ,3
<br />,8 .4 ,1
<br />.4 ,3 ,0
<br />,2 ,2
<br />,1 ,1
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<br />9D DOOR SUMMER POINT MULTIPLIERS (SPM)
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<br />9E CEILING SUMMER POINT MULTIPLIERS (SPM)
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<br />UNDER ATTIC SINGLE ASSEMBLY
<br />R.VALUE SPM R-VALUE SPM
<br />19-21,9 1,1 10-10,9 3,0
<br />22 - 25,9 ,9 11 - 12,9 2.7
<br />26 - 29,9 .7 13 - 18,9 2.4
<br />30,37,9 .6 19 - 25.9 1,8
<br />38&U 2&U 1
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<br />CONCRETE DECK ROOF
<br />CEILING TYPE
<br />DROPPED EXPOSED
<br />3.0 3.3
<br />2.0 2,1
<br />1.4 1
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<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7.2 2.4
<br />INSULATED 4,8 1.6
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<br />LOG
<br />6 INCH
<br />R.YAWE EXT
<br />o - 2,9 1.7
<br />3, 6,9 1.1
<br />7 & U ,8
<br />8 INCH
<br />R.YAWE EXT
<br />0,2,9 1.0
<br />3 - 6.9 ,8
<br />7&U .7
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<br />9F FLOOR SUMMER POINT MULTIPLIERS (SPM)
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<br />SLAB-ON-GRADE RAISED RAISED WOOD'
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL WI UNDER 1
<br />R.VALUE SPM R.VALUE SPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.YAWE SPM 5PM I SPM
<br />0-2.9 31.9 0-2.9 1,0 0, 6,9 ,9 5,3
<br />3 - 4.9 31.8 3 - 4.9 1.7 7 -10,9 -1.1 -2,8 T 2,1
<br />5 - 6.9 -31.7 5 - 6.9 -1.7 11 -18,9 -1.0 -2.2 I 1.8
<br />7 R. (In - ::!1fl 7 R. Iln -17 19 & Uo - ,9 -1.8 I 1.0
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<br />9H DUCT MULTIPLIERS (OM)
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<br />INFILTRATION 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 /> 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 Space' 6.7 & up 1,06 1,00
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<br />9G INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
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<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 />, Ducts in conditioned space need to be insulated only to the R-Value necessary to prevent condensation.
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