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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 (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 />NEJNW 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 />B1l SEJSW 1.00 ,93 ,90 ,81 ,72 ,62 ,55 .49 .42 .33 ,27 ,22
<br />S 1.00 ,91 ,87 ,n ,67 ,57 ,50 ,45 ,39 ,32 ,28 ,25
<br />IH* Oft 1ft' 1'hit 2ft 3ft" 3iMt 4>> SV; fl 1;1/, it Cl1htl 14ft ?Oft...
<br /> 'To select bv Overhano Lenath, no oart of olass shall be more than 8 ft, below the overhano,
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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
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<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 A mc 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 & Un .4 26-29,9 1.1
<br /> 1nR.ll~ OCl
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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 />0,9 -5,8
<br />-1.1 -2,8
<br />,1.0 -2,2
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<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 (OMl
<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 /> 6,0-6,6 1,10 1.07
<br /> UNCONDITIONED SPACE 6,7 & Up 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 /> I; 7 R.lln 101; foo
<br />6A-8 COOLING SYSTEM MULTIPLIERS ICSMl
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS ICSMl
<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 10,5-10,9 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) Ratino 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 & Un
<br />CSM ,27 ,26 ,25 ,24 ,24 ,23 ,22 ,21 ,21 ,20 ,19
<br />MINIMUMS: CENTRAL UNITS-AIR COOLED SPUT SYSTEM 10,0 SEER, SINGLE PKG, 9,7 SEER, GROUND WATER HEAT PUMP 11,0 EER. PTAC-SEE TABLE 6,2
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<br />6A-6 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 IHWMl
<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 & Un
<br /> HWM 2974 I 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 MUL TIPUERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2,1 OF APPENDIX C, 2 MUL T1PUERS FOR OTHER TYPES OF RAISED WOODASSEMBUES 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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