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<br />, .
<br />
<br />'SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A-1 SUMMER OVERHANG FACTORS (SOA 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: E/'N 1,00 ,95 ,92 ,85 ,78 .70 ,64 ,58 ,52 .42 ,33 ,26
<br />wO
<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 />nu r::t."'::TU* nft 1 ft 11j,ft ?ft 3ft "l'hft 41j,ft <:;1j,ft R1j,ft ~1j,ft 14ft ?nft.
<br /> 'To select bv Ovemann Lennth no oart of nlass shall be more than 8 It, below the overholVl.
<br />
<br />6A-2 WALL SUMMER POINT MULTIPLIERS SPM
<br />FRAME
<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 />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 />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
<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 6A-4 CEILING SUMMER POINT MULTIPLIERS (SPMl
<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 &Uo 1,4 1,3
<br /> 38 & Uo ,4 26-29,9 1,1
<br /> ~nR.lln n~
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS (SPMl
<br />SLAB-ON-GRADE lil!I!!!i!; RAISED li::i!: RAISED WOO[)2
<br /> POST OR PIER STEM WALL wi UNDER
<br />EDGE INSULATION CONCRETE ::X. CONSTRUCTION FLOOR INSULATION ADJ~CENT
<br />R-VALUE SPM ;fii R-VALUE SPM XXX! R-VALUE SPM SPM SPM
<br />0-2,9 -31,9 iii! 0-2.9 -1,0 Xii: 0-6,9 0,9 -5,8 5,3
<br />3-4,9 -31,8 iXIXX 3-4,9 -1.7 :: 7-10,9 -1,1 -2,8 2,1
<br />5-6,9 -31.7 i1iiii 5-6,9 -1.7 11-18,9 -1,0 -2,2 1,8
<br />7 R.lln -"11 R in 7 R.lln -17 1~R.lln -n ~ -1 R 1 n
<br />
<br />SPM)
<br />
<br /> 6A.7 DUCT MULTIPLIERS IDMl
<br /> RETURN DUCTS RETURN DUCTS
<br /> R-V ALUE 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 DUCTSIN 4,2-5,9 1.10 1,00
<br /> CONDITIONED SPACE' 6,0-6,6 1,07 1,00
<br /> R 7 !l.lln 100 100
<br />6A-8 COOLING SYSTEM MULTIPLIERS ICSMl
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS ICSMl
<br />Central 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 HEAT PUMP 11.0 EER PTAC-SEE TABLE 6-2
<br />
<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
<br />
<br />6A-9 HOT WATER MULTIPLIERS (HWMI
<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 ,48-.49 I ,50-.51 ,52-,53 ,54-,55 ,56-,57 ,58- .59 ,60-,61 ,62-,63 ,64-,65 ,66 & Uo
<br /> HWM 2974 2664 I 2558 2459 2368 2284 2205 2132 2063 1998 1938
<br />LP Gas HWM 3638 3259 I 3129 3009 2897 2794 2697 2607 2523 2444 2370
<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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