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<br />SUMMER POINT IVIULTIPLlERS (SPM)
<br />
<br />6A-1 SUMMER OVERHANG FACTORS ISOFl FOR SINGLE AND DOUBLE PANE GLASS,
<br />in r _ OH~).TIO ,00-,11 ,12-,17 .18-,26 .27-.35 .36-.46 ,47-.57 ,58-,70 .71-.83
<br />, N 1,00 ,94 ,91 ,87 .83 ,79 ,76 ,72
<br />NE/NW 1,00 ,94 ,91 ,85 ,79 ,72 ,68 ,63
<br />t; II: EIW 1,00 ,95 ,92 ,85 .78 .70 .64 ,58
<br />~ lO SE/SW 1,00 ,93 ,90 ,81 .72 ,62 .55 ,49
<br />S 1,00 ,91 .87 .77 .67 ,57 ,50 ,45
<br />nl-ll I=Nr.TI-l' nit 1 It 1'/, It 2 It 3 It, ::1'/, It li1j, It <;'/, It
<br />'To select bv Ovemano Lenoth no oart of olass shall be more than 8 ft, below the ovemane,
<br />
<br />6A-2 WALL SUMMER POINT MULTIPLIERS SPM
<br />FRAME
<br />
<br />
<br />CONCRETE BLOCKl
<br />INT,INSULATlON
<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 />R-V ALUE
<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 />SPM)
<br />
<br /> CLIMATE ZONES 4 5 6
<br />.84-1.18 1,19-1.72 1,73-2.73 2.74+
<br />,69 .63 ,56 .50
<br />,58 ,50 ,40 ,36
<br />,52 ,42 ,33 .26
<br />.42 .33 ,27 .22
<br />,39 ,32 .28 ,25
<br />fl1j,1t 91j,1t 14ft. ?nlt...
<br />
<br />
<br />6A-3 DOOR SUMMER POINT MULTIPLIERS 6A-4 CEILING SUMMER POINT MULTIPLIERS lSPMl
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING
<br /> R-V ALUE SPM R-VALUE SPM CEILING TYPE
<br />WOOD 7,2 2,4 19-219 1,1 10-10,9 3,0 R-V ALUE DROPPED EXPOSED
<br /> 22-25.9 ,9 11-12,9 2,7 10-1:3.9 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 /> ::In R. Iln nq
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS ISPMl
<br />SLAB-ON-GRADE RAISED RAISED WOOD2
<br /> POST OR PIER STEM WALL wi UNDER
<br />EDGE INSULATION CONCRETE < CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-V ALUE SPM R-V ALUE SPM ...... R-V ALUE SPM SPM SPM
<br />0-2,9 -31,9 0-2.9 -1.0 0-6,9 0,9 N/A 5,3
<br />3-4,9 -31,8 / 3-4,9 -1,7 7-10,9 -1,1 ,2,8 2,1
<br />5-6,9 -31,7 ...... 5-6,9 -1,7 11-18,9 -1,0 .2,2 1.8
<br />7 R. Iln -::11 fl 7 R. Iln -17 19 R. lJn J1Q ..1 R 1 n
<br />
<br />6A-6 INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
<br />INFILTRATION PRACTICE SPM
<br />SEE TABLE 9P
<br />PRACTICE #1 13,8
<br />PRACTICE #2 10,9
<br />
<br />6A-7 DUCT MULTIPLIERS OM
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />SUPPLY DUCTS IN
<br />ONDITIONED SPACE3
<br />
<br />R-V ALUE
<br />4,2-5,9
<br />6,0-6,6
<br />6,7 & U
<br />4.2-5.9
<br />6.0-6,6
<br />7
<br />
<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1,14
<br />1,10
<br />1,09
<br />1,10
<br />1,07
<br />1.
<br />
<br />RETURN DUCTS
<br />IN CONDITIONED SPACE
<br />1,10
<br />1,07
<br />1.06
<br />1.00
<br />1,00
<br />
<br />6A-8 COOLING SYSTEM MULTIPLIERS lCSMl
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS ICSMI
<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 Uni1s (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 COOLED 11.0 EER. PTAG-SEE TABLE 6-3,
<br />
<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 4183 4081 3984 3891 3803 3678 3560 3450
<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 & Un
<br /> HWM 3098 2775 I 2664 2562 2467 2379 2297 2220 2138 2081 2018
<br />Lp Gas HWM 4195 3758 I 3608 3469 3340 3221 3110 3007 2910 2819 2733
<br />Solar EF 1,0-1.9 2.0-2.9 3,0-3,9 4,0-4,9 5,0 & Un
<br />I-lWM R.4 Ii? ?II ?1 1<;
<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,
<br />
<br />-3-
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