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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- .46 .47 -,57 ,58- .70 .71- .83 ,84- 1.18 1,19-1.72 1,73-2.73 2.74,
<br />. N 1.0 .94 ,91 ,87 .83 .79 .75 .72 ,69 ,62 .56 5
<br />>-.
<br />lD, NElNW 1.0 ,94 ,91 ,85 .79 .72 ,68 ,63 .58 ,50 .40 3
<br />g~ E/W 1,0 ,95 ,92 .85 ,78 ,70 ,64 .58 ,52 .42 ,33 2
<br />;:d. SElSW 1,0 .93 ,90 ,81 .72 ,62 .55 .49 ,42 ,33 .27 .2
<br />CIJ,
<br />, S 1,0 .91 ,87 .77 .67 ,57 ,50 .45 ,39 .32 ,28 2
<br />~ OH LENGTH . o It. 1 It. l1h It. 2 It. 3 It. 31h It. 41h It. 51h It. 61h It. 91h 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 = OH LENGTH
<br />OH HEIGHT
<br />
<br />
<br />r~L
<br />
<br />H
<br />
<br />J
<br />
<br />9C WALL SUMMER POINT MULTIPLIERS (SPMI
<br />
<br />FRAME
<br />
<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 41 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
<br />
<br />90 DOOR SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7.2 2.4
<br />INSULATED 4.8 1.6
<br />
<br />9F FLOOR SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />
<br />01
<br />
<br />
<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
<br />
<br />CONCRETE BLOCK1
<br />INT. INSULATION 00. INSUL.
<br />NORMAL WT. NOR. WT.
<br />00 ADJ 00
<br />2,5 ,9 2,5
<br />1.4 .7 .7
<br />In B ,3
<br />.8 ,4 ,1
<br />,4 ,3 ,0
<br />2 ,2
<br />,1 .1
<br />
<br />
<br />LOG
<br />6 INCH
<br />R.YALUE EXT
<br />o - 2,9 1.7
<br />3 - 6,9 1.1
<br />7 & U8
<br />8 INCH
<br />R.YALUE EXT
<br />0-2.9 10
<br />3 - 6,9 8
<br />7&U .7
<br />
<br />
<br />CONCRETE DECK ROOF
<br />CEILING TYPE
<br />DROPPED EXPOSE,
<br />3.0 3,3
<br />2.0 2.1
<br />1,4 1,3
<br />
<br />9H DUCT MULTIPLIERS (DM)
<br />
<br />SLAB-oN-GRADE RAISED RAISED WOOD'
<br />EDGE INSUL TION CONCRETE POST OR PIER STEM WALL WI UNDER
<br />R.VALUE SPM R.VALUE SPM CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R.YALUE SPM 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 21
<br />5 - 6.9 -31.7 5 - 6.9 -1.7 11 -18.9 -1.0 -2,2 1.8
<br />7 & UD -~u' 7 & UD -1.7 19 & Up - ,9 -1.8 1.0
<br />
<br />9G INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />INFILTRATION PRACTICE SPM
<br />(See Table 9P)
<br />PRACTICE # 1 13.8
<br />PRACTICE # 2 10.9
<br />PRACTICE # 3 7.6
<br />
<br />9E CEILING SUMMER POINT MULTIPLIERS (SPM)
<br />
<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 .4 U 1.
<br />
<br />R-Value
<br />
<br />Return Ducts
<br />In Unconditioned Space
<br />
<br />1.14
<br />1.10
<br />1.09
<br />
<br />4.2-5.9
<br />6.0-6.6
<br />6.7 & up
<br />4.2-5.9
<br />6.0-6.6
<br />6.7 & up
<br />
<br />1.10
<br />1.07
<br />1.06
<br />
<br />Supply
<br />Ducts in
<br />Unconditioned Space
<br />
<br />Supply
<br />Ducts in
<br />Conditioned Space3
<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 />- 3-
<br />
<br />- 1-
<br />
<br />Return Ducts
<br />In Conditioned Sp,
<br />
<br />1.10
<br />1.07
<br />1.06
<br />
<br />1.00
<br />1.00
<br />1,00
<br />
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