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<br />SUMMER POINT _MULTIPLIERS (SPM)
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<br />CLIMATE ZONES 4 5 6
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<br />6A-1 SUMMER OVERHANG FACTORS ISO 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 />.....a: Em 1.00 ,95 ,92 .85 .78 ,70 .64 .58 .52 .42 ,33 ,26
<br />~o
<br />~L 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 LENGTH* Oft 1 ft. l1f2ft. ?It 3ft 3% fl. 4% fl. 5% ft. 6% ft. Q1j,ft 14ft ?Oft.j.
<br /> 'To select by Overhano Lenoth. no oart of olass shall be more than 8 ft. below the overhana.
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<br />6A.2 WALL SUMMER POINT MULTIPLIERS SPM
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<br />FRAME
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<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
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<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
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<br />CONCRETE BLOCK'
<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
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<br />6A-3 DOOR SUMMER POINT MULTIPLIERS
<br />DOOR TYPE EXTERIOR ADJACENT
<br />WOOD 7,2 2.4
<br />INSULATED 4.8 1.6
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<br />SPM)
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<br />6A-4 CEILING SUMMER POINT MULTIPLIERS ISPMl
<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 & Up 1.4 1.3
<br />38 & Uo .4 26-29,9 1.1
<br /> 30& Iln OQ
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<br />
<br />RAISED WOO[)2
<br />POST OR PIER STEM WALL wI UNDER
<br />CONSTRUCTION FLOOR INSULATION
<br />SPM SPM
<br />Q9 ~B
<br />-1,1 ..2,8
<br />-1,0 .2,2
<br />
<br />ADJ~CENT
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<br />SPM
<br />5,3
<br />2,1
<br />1.8
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<br /> 6A-7 DUCT MULTIPLIERS IDMl
<br /> RETURN DUCTS RETURN DUCTS
<br /> R.VALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE
<br /> SUPPLY DUCTS IN 4,2-5.9 1,14 1.10
<br /> UNCONDITIONED SPACE 6,0-6,6 1,10 1,07
<br /> 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 1.06 1.00
<br />6A-8 COOLING SYSTEM MULTIPLIERS ICSMl
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS (CSMl
<br />Central Units (SEER) Ratino 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,!~ 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 & Up
<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. PT AC-SEE TABLE 6-2
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<br />6A~ INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
<br />INFILTRATION PRACTICE SPM
<br />SEE TABLE 6A-21
<br />PRACTICE #1 13,8
<br />PRACTICE #2 10,9
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<br />6A-9 HOT WATER MULTIPLIERS IHWMI
<br />SYSTEM TYPE HOT WATER MULTIPLIERS IHWM
<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 I .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 I 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 ONLY TO THE R-VALUE NECESSARY TO PREVENT CONDENSATION.
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<br />-3-
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