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<br />SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />&1,.1 SUMMER OVERHANG FACTORS (SO =) 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 .75 .72 .69 ,62 .56 .50
<br />NElNW 1.00 ,94 .91 ,85 .79 .72 .68 ,63 ,58 .50 ,40 ,36
<br />tia:: -EIW 1.00 .95 ,92 ,85 .78 .70 ,64 ,58 ,52 ,42 .33 ,26
<br />wO
<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 />OH I F=Nr.TH* Oft, 1 fI- 1% fI 2ft ~ft ~lhft 4%fI, 5% fI, 6%ft Q% ft 14ft 20fl,+
<br /> 'To select bv Overf1ano Lenoth, no Dart of nlass shall be more than 8 ft, below the overf1ano,
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<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.VALUE
<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
<br />NORMAL WT.
<br />EXT ADJ
<br />2.5 ,9
<br />1.4 ,7
<br />1,0 ,6
<br />.8 .4
<br />,4 .3
<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 CSPMI
<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 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 & Uo 1.4 1.3
<br />38 & Uo .4 26-29,9 1,1
<br /> ~o & Uo OQ
<br />
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS SPM
<br />
<br />SLAB-ON-GRADE RAISED
<br />EDGE INSULATION CONCRETE
<br />
<br />R.VALUE SPM R.VALUE SPM
<br />0-2,9 -31.9 0-2.9 -1.0
<br />3-4,9 -31.8 3-4,9 -1.7
<br />5-6,9 -31.7 5-6.9 -1.7
<br />
<br />
<br />RAISED WOO[)2
<br />POST OR PIER STEM WALL wi UNDER
<br />CONSTRUCTION FLOOR INSULATION
<br />SPM SPM
<br />0,9 -5.8
<br />-1.1 -2.8
<br />-1,0 -2,2
<br />
<br />ADJ~CENT
<br />
<br />SPM
<br />5.3
<br />2.1
<br />1,8
<br />
<br />6A-6 INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
<br />
<br /> 6A-7 DUCT MULTIPLIERS CDMI
<br /> INFILTRATION PRACTICE SPM RETURN DUCTS RETURN DUCTS
<br /> (SEE TABLE 6A.21) R.VALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE
<br />PRACTICE #1 13,8 SUPPLY DUCTS IN 4.2-5,9 1.14 1.10
<br />PRACTICE #2 10.9 UNCONDITIONED SPACE 6.0-6,6 1.10 1.07
<br /> #3 7,6 6,7 & Uo 1.09 1.06
<br /> SUPPLY DUCTS IN 4,2-5,9 1,10 1.00
<br /> CONDITIONED SPACE' 6.0-6,6 1.07 1,00
<br /> 6.7 & Uo 10R 1M
<br />6A-lI COOLING SYSTEM MULTIPLIERS (CSMI
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS CCSMI
<br />Central Units (SEER) RatinQ 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 HEAT PUMP 11,0 EER. PTAC-5EE TABLE 6-2
<br />
<br />6A-9 HOT WATER MULTIPLIERS CHWMI
<br />SYSTEM TYPE HOT WATER MULTIPLIERS CHWM
<br />Electric Resistance EF .80-,81 ,82-.83 ,84-.85 .86-,87 ,88-.90 ,91-.93 ,94-.96 .97 & Uo
<br />HWM 3879 3785 3695 3609 3527 3411 3302 3200
<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 2974 2664 2558 2459 2368 2284 2205 2132 2063 1998 1938
<br />LP Gas HWM 3638 3259 3129 3009 2897 2794 2697 2607 2523 2444 2370
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<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 ONL YTO THE R-VALUE NECESSARY TO PREVENT CONDENSATION,
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