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<br />SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />98 SUMMER OVERHANG FACTORS (SOF) For single and double pane glass.
<br />
<br />CLIMATE ZONES'
<br />
<br />~ OH RATIO .0 ,11 ,12-,17 .18-.26 .27-,35 .36- A6 A7-.57 .58- .70 .71-,83 .84- 1.18 1.19-1,72 173-2.73 274,
<br />. N 1.0 ,94 ,91 ,87 ,83 ,79 .75 ,72 ,69 ,62 ,56 :,
<br />>-. NE/NW 1.0 ,94 ,91 ,85 ,79 ,72 ,68 .63 ,58 .50 AO
<br />co. ,~
<br />.......a:: E/W 1,0 95 .92 ,85 .78 .70 .64 .58 .52 A2 .33 t
<br />~o
<br />u::J. SE/SW 1,0 ,93 ,90 ,81 .72 ,62 .55 A9 A2 ,33 .27 t
<br />(/). r
<br />I S 1.0 ,91 .87 ,77 ,67 .57 ,50 A5 .39 .32 .28 c
<br />~ OH LENGTH . o It. 1 It. 11/2 ft, 2 It. 3 It. 31/2 It. 41/2 It. 51/2 It. 61/2 It. 91/2 ft. 14 It. 20 It
<br /> . To select by Overhang Length, no part 01 glass shall be more than 8 It. below the overhang,
<br />
<br />OVERHANG RATIO = OH LENGTH
<br />OH HEIGHT
<br />
<br />
<br />
<br />r~L
<br />
<br />H
<br />
<br />J
<br />
<br />01
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<br />9C WALL SUMMER POINT MULTIPLIERS /SPM)
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<br />FRAME
<br />
<br />
<br /> WOOD STEEL
<br />R.YALUE EXT ADJ EXT ADJ
<br />0- 6,9 64 2,2 89 2,9
<br />7 - 10,9 23 8 4,1 1.3
<br />11 - 12,9 1.9 ,7 3,0 1,0
<br />13 - 18,9 17 ,6 2,8 0,9
<br />19 - 25,9 1.0 ,3 24 0,8
<br />26 & U ,6 2 13 04
<br />
<br />CONCRETE BLOCK'
<br />INT. INSULATION EXT. INSUL.
<br />NORMAL WT. NOR, WT,
<br />EXT ADJ EXT
<br />25 B 25
<br />14 .7 ,7
<br />1~ ~ ,3
<br />.8 .4 ,1
<br />.4 .3 ,0
<br />,2 .2
<br />,1 .1
<br />
<br />90 DOOR SUMMER POINT MULTIPLIERS (SPM)
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<br />9E CEILING SUMMER POINT MULTIPLIERS (SPM)
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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 />
<br />LOG
<br />6 INCH
<br />R.VALUE EXT
<br />0- 2.9 1.7
<br />3 - 6.9 1,1
<br />7 & U 8
<br />8 INCH
<br />R.VALUE EXT
<br />0-2,9 10
<br />3 - 6,9 8
<br />7&U .7
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<br />UNDER ATTIC 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 EXPOSEI
<br />22 - 25.9 .9 11 -12.9 2,7 10 - 13,9 3.0 3,3
<br />26 - 29,9 .7 13 -18.9 2,4 14 - 20.9 2.0 21
<br />30 - 37.9 .6 19 - 25,9 1.8 21 & lln 1.4 1.3
<br />38 & Un .4 26 & lln 1.1 }/' ,
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<br />9F FLOOR SUMMER POINT MULTIPLIERS (SPM)
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<br />SLAB-ON-GRADE RAISED RAISED WOODz
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL WI UNDER I
<br />R.VALUE SPM R.VALUE SPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.VALUE SPM SPII 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 I 2,1
<br />5.6.9 -31.7 5 - 6.9 -1.7 11 -18,9 -10 -2,2 I 18
<br />7 & Uo -31.6 7 & Uo -17 19 & Up - ,9 -18 I 10
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<br />9H DUCT MULTIPLIERS (OM)
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<br />9G INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
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<br />Return Ducts
<br />In Unconditioned Space
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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
<br />
<br />Supply 4.2-5,9 1.14
<br />Ducts in 6,0-6.6 1.10
<br />Unconditioned Space 6,7 & up 1.09
<br />
<br />Supply 4.2-5.9 1.10
<br />Ducts in 6.0-6.6 1.07
<br />Conditioned Space3 6.7 & up 1,06
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<br />1 For multipliers lor other types 01 concrete block construction see section 903,2(b).
<br />2 For multipliers lor 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 />- 3 -
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<br />Return Ducts
<br />In Condilioned Sp,-,
<br />
<br />1.10
<br />1.07
<br />1.06
<br />
<br />1.00
<br />1.00
<br />1.00
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