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<br />. .
<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 (SOFI 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 />nl-ll ~"I/'::TI-I* nft -1 ft 1% ft ?ft ~ft ~%ft ,111, ft 5'J?ft, IW,ft Qihft Uft ?nft...
<br /> 'To select bv Overhann Lennth no nart of nlass shall be more than 8 It, 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
<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
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<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
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<br />6A-S DOOR SUMMER POINT MULTIPLIERS 6A-4 CEILING SUMMER POINT MULTIPLIERS (SPMI
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R-VALUE SPM R.VALUE SPM CEILING TYPE
<br />WOOD 7,2 2.4 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 />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 &IJo 1.4 1.3
<br /> 38 & Uo .4 26-29.9 1,1
<br /> ~n R. lJn nQ
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS (SPM\
<br />SLAB-QN-GRADE :liI11~1: RAISED RAISED WOOD2
<br />EDGE INSULATION CONCRETE IF POST OR PIER STEM WALL wi UNDER ADJ~CENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-VALUE SPM [i'i;;; R-VALUE SPM 'Lu R-V ALUE SPM SPM SPM
<br />0-2,9 -31,9 iJL" 0-2,9 -1.0 0-6.9 0,9 -5.8 5.3
<br />3-4,9 -31,8 3-4,9 -1,7 IiU' 7-10,9 -1.1 -2.8 2,1
<br />5-6.9 -31,7 i!!' 5-6,9 -1.7 'F 11-18,9 -1,0 -2,2 1.8
<br />7 R. Iln _~1 ~ ,ii'! 7 R. lJn -17 1Q R.IJn -nQ _1 A 1n
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<br />SPM)
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<br />6A-6 INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
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<br /> 6A-7 DUCT MULTIPLIERS IDM\
<br /> INFILTRATION PRACTICE SPM RETURN DUCTS RETURN DUCTS
<br /> ISEE TABLE 6A-21\ R-V ALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE
<br />PRACTICE #1 13,8 SUPPLY DUCTSIN 4,2-5,9 1.14 1.10
<br />PRACTICE #2 10,9 6,0-6.6 1,10 1,07
<br /> 7R UNCONDITIONED SPACE 6,7 & Un 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 /> F. 7 R. lJn 1nF. 1 nn
<br />6A-8 COOUNG SYSTEM MULTIPLIERS (CSMI
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS (CSM\
<br />Central Units (SEER) Ratinn 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 16,0-1 €i.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. PTAG-SEE TABLE 6,2
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<br />6A-9 HOT WATER MULTIPLIERS (HWM\
<br />SYSTEM TYPE HOT WATER MUL TIPUERS (HWM
<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 I ,50-.51 ,52-,53 ,54-,55 .56- ,57 ,58- .59 ,60-,61 ,62-,63 ,64-,65 ,66 & Uo
<br /> HWM 2974 I 2664 I 2558 2459 2368 2284 2205 2132 2063 1998 1938
<br />LP Gas HWM 3638 I 3259 I 3129 3009 2897 2794 2697 2607 2523 2444 2370
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<br />, 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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