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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 />NElNW 1.00 ,94 ,91 ,85 ,79 ,72 ,68 ,63 .58 ,50 .40 .36
<br />I-a: E/W 1,00 .95 .92 ,85 ,78 ,70 ,64 ,58 ,52 .42
<br />frlo ,33 .26
<br />ml SElSW 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 />ru:IT J:1\lr::TI-l* Oft 1 ft, 1% ft ?ft ~ft ~'j, ft. 4'j, ft. "if, ft 6% ft. Qi/,ft 14ft ?Oft+
<br /> 'T 0 select bv Overhana Lennth no nart of alass shall be more than 8 ft. below the overhano.
<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 BLOCK'
<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 6A-4 CEILING SUMMER POINT MULTIPLIERS ISPMl
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING
<br /> R-V ALUE SPM R-VALUE SPM CEILING TYPE
<br />WOOD 7.2 2.4 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 />INSULATED 4,8 1.6 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 & Uo 1.4 1.3
<br /> 38 & Uo .4 26-29,9 1.1
<br /> ~o R. Iln 00
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS ISPMl
<br />SLAB-ON-GRADE RAISED RAISED WOO02
<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-V ALUE 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 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 R.lln -:11 R 7 R. Iln -17 10 R.lln -00 _1 R {.o
<br />
<br />SPM)
<br />
<br />
<br />6A-7 DUCT MULTIPLIERS OM
<br />
<br />SUPPLY DUCTS IN
<br />ONDITIONED 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 />13.8
<br />10.9
<br />7,
<br />
<br />SUPPLY DUCTSIN
<br />UNCONDITIONED SPACE
<br />
<br />6A-B COOLING SYSTEM MULTIPLIERS ICSMl
<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. PTAC-SEE TABLE 6-3.
<br />
<br />6A-9 HOT WATER MULTIPLIERS IHWMl
<br />SYSTEM TYPE HOT WATER MULTIPLIERS IHWM
<br />Elec1ric 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 I .50,51 .52-.53 ,54-.55 ,56-.57 ,58- .59 .60-.61 .62-,63 .64-.65 .66 & Uo
<br />HWM 3098 2775 I 2664 2562 2467 2379 2297 2220 2138 2081 2018
<br />to Gas HWM 4195 3758 I 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 & UO
<br />HWM R4 42 ?R ?1 1"
<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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