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<br />'SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A-1 SUMMER OVERHANG FACTORS ISOFl FOR SINGLE AND DOUBLE PANE GLASS. .
<br />~r OH RATIO ,00-.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 1.00 .94 .91 .87 ,83 .79 ,76 ,72 ,69 ,63 ,56 ,50
<br />NE/NW 1.00 .94 .91 ,85 ,79 ,72 ,68 ,63 ,58 ,50 ,40 ,36
<br />I-a: EIW 1,00 ,95 ,92 ,85 ,78 ,70 ,64 .58 .52
<br />~o .42 .33 ,26
<br />ml SE/SW 1.00 ,93 ,90 ,81 ,72 ,62 ,55 ,49 .42 ,33 ,27 ,22
<br />S 1.00 ,91 ,87 ,77 ,67 ,57 ,50 .45 ,39 ,32 ,28 ,25
<br />f'll-l :tJ~TI-l. Oft, 1 ft, 1V.ft. 2ft. 3ft, 3% ft. 4% ft. 5%ft, f1%ft Q%ft 14ft ?Oft+
<br /> 'To select bv Overhano Lenoth, no oart of olass shall be more than 8 ft, below the overhano,
<br />
<br />l'
<br />
<br />6A-2 WALL SUMMER POINT MULTIPLIERS SPM
<br />
<br />FRAME
<br />
<br />WOOD
<br />EXT ADJ
<br />6.4 2.2
<br />2,3 ,8
<br />1,9 .7
<br />1,7 .6
<br />1.0 ,3
<br />,6 ,2
<br />
<br />R-V ALUE
<br />0-6.9
<br />7-10.9
<br />11-12,9
<br />13-18,9
<br />19,25.9
<br />26& U
<br />
<br />STEEL
<br />EXT ADJ
<br />8.9 2.9
<br />4,1 1.3
<br />3,0 1.0
<br />2,8 0,9
<br />2,4 0,8
<br />1,3 0,4
<br />
<br />
<br />CONCRETE BLOCK1
<br />INT. INSULATION EXT.INSUL
<br />NORMAL WT. NOR. WT.
<br />EXT ADJ EXT
<br />2,5 ,9 2.5
<br />1.4 .7 ,7
<br />1.0 ,6 ,3
<br />,8 ,4 ,1
<br />.4 ,3 0
<br />,2 ,2
<br />,1 .1
<br />
<br />
<br />6A-3 DOOR SUMMER POINT MULTIPLIERS
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7,2 2.4
<br />INSULATED 4,8 1,6
<br />
<br />SPM)
<br />
<br />6A-4 CEILING SUMMER POINT MULTIPLIERS (SPMI
<br />UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING
<br />R-V ALUE SPM R.VALUE SPM CEILING TYPE
<br />19-219 1.1 10-10,9 3,0 R-V ALUE DROPPED EXPOSED
<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 2,1
<br />30-37,9 ,6 19-25,9 1,8 21 & Up 1.4 1,3
<br />38 & UP ,4 26-29,9 1,1
<br /> ::lOR-lln OQ
<br />
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS (SPMI
<br />SLAB-QN-GRADE RAISED RAISED WOOD2
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL wI UNDER ADJACENT
<br />........) CONSTRUCTION FLOOR INSULATION
<br />R-V ALUE SPM R-V ALUE SPM R.VALUE SPM SPM SPM
<br />0-2,9 -31.9 0-2,9 -1,0 0-6,9 0,9 N/A 5,3
<br />3-4,9 -31,8 FF 3-4,9 -1,7 7-10.9 -1,1 -2,8 2,1
<br />5-6,9 -31,7 5-6,9 -1,7 11-18,9 -1,0 -2,2 1,8
<br />7 & Uo -31.6 7 & Uo -1.7 19& UO -OQ -1,8 1,0
<br />
<br />
<br />6A.7 DUCT MULTIPLIERS DM
<br />
<br />13.8
<br />10,9
<br />7.
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />
<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1,14
<br />1,10
<br />1,09
<br />1,10
<br />1,07
<br />
<br />RETURN DUCTS
<br />IN CONDITIONED SPACE
<br />1,10
<br />1,07
<br />1,06
<br />1,00
<br />1,00
<br />1
<br />
<br />SUPPLY DUCTS IN
<br />CONDITIONED SPACE'
<br />
<br />6A-8 COOLING SYSTEM MULTIPLIERS (CSMI
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS ICSMl
<br />Ceotral Units (SEER) Ratina 7,5-7,9 8.0-8.4 8,5-8,8 8,9-9,4 9,5-9,9 10,0-10.4 10.5-10,9 11,0-11.4 11,5-11,9 12,0-12.4
<br />CSM ,45 .43 ,40 ,38 ,36 ,34 ,32 ,31 ,30 .28
<br />PTAC & Room Units (EER) Ratina 12.5-12,9 13.0-13.4 13.5-13,9 14,0-14.4 14,5,14.9 15,0-15.4 15,5-15,9 16,0-16.4 16,5-16,9 17,0-17.4 17,5 & Uo
<br />CSM .27 ,26 ,25 ,24 ,24 .23 .22 ,21 .21 ,20 ,19
<br />MINIMUMS: CENTRAL UNITS-AIR COOLED SPLIT SYSTEM 10,0 SEER, SINGLE PKG, 9.7 SEER, GROUND WATER COOLED 11,0 EER. PTAG-SEE TABLE 6.3,
<br />
<br />6A-9 HOT WATER MULTIPLIERS (HWMI
<br />SYSTEM TYPE HOT WATER MULTIPLIERS (HWM
<br />Electric Resistance EF .80-,81 ,82-,83 ,84-,85 ,86-,87 ,88-,90 ,91-.93 ,94-,96 ,97 & Up
<br />HWM 4183 4081 3984 3891 3803 3678 3560 3450
<br />Natural Gas EF ,43-,47 .48-.49 ,50.51 .52-,53 ,54-.55 ,56-.57 ,58-.59 ,60,,61 ,62-,63 ,64-,65 ,66 & Uo
<br />HWM 3098 2775 2664 2562 2467 2379 2297 2220 2138 2081 2018
<br />Lo Gas HWM 4195 3758 3608 3469 3340 3221 3110 3007 2910 2819 2733
<br />Solar EF 1,0-1.9 2,0-2,9 3,0-3,9 4,0-4,9 5.0 & Up
<br />HWM R4 .42 .28 .21 .15
<br />
<br />1 FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2,1 OF APPENDIX C, 2 MULTIPLIERS FOR OTHER TYPES OF RAISED WOOD ASSEMBLIES SEE
<br />SECTION 3,1 OF APPENDIX C, 3 DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R-VALUE NECESSARY TO PREVENT CONDENSATION,
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<br />,3-
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