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<br />SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<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 .76 ,72 .69 ,63 .56 .50
<br />NE/NW 1.00 .94 .91 ,85 ,79 .72 .68 ,63 .58 ,50 .40 .36
<br />....a: ENV 1.00 .95 ,92 .85 .78 .70 .64 .58 .52 .42 ,33
<br />frlo .26
<br />gl SE/SW 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 1=Nr.TI-l' Oft. 1 ft 11/, ft ?ft ~ft ~1/,ft ll1j,ft <;'/,ft I;'/,ft Ql/, ft. 14ft. ?Oft...
<br /> 'To select bv Overhano Lenoth no Mrt of nlass shall be more than 8 ft. below the overhann,
<br />
<br />6A-2 WALL SUMMER POINT MULTIPLIERS SPM
<br />
<br />FRAME
<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 />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
<br />
<br />
<br />CONCRETE BLOCKl
<br />INT. INSULATION
<br />NORMAL wr.
<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 ISPMI
<br />DOOR TYPE EXTERIOR ADJACENT UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOFING
<br /> R-VALUE 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 10-13.9 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 /> <In!l.l~ nQ
<br />6A.5 FLOOR SUMMER POINT MULTIPLIERS (SPMI
<br />SLAB-ON-GRADE 0: RAISED >N RAISED WOOD2
<br />i :: POST OR PIER STEM WALL wI UNDER
<br />EDGE INSULATION :: CONCRETE (Hi CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-V ALUE SPM iN R-V ALUE SPM R-V ALUE SPM SPM SPM
<br />0-2.9 -31,9 NN 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 iN 5-6.9 -1.7 N 11-18.9 -1.0 -2.2 1,8
<br />7!l. Iln _~11; 7!l. Iln _17 Iii -1Q!l. Iln ~nQ -1.R 10
<br />
<br />SPMI
<br />
<br />6A~ INFILTRATION SUMMER POINT MULTIPLIERS (SPMI 6A-? DUCT MULTIPLIERS OM
<br />
<br />SUPPLY DUCTS IN
<br />ONDITIONED SPACE'
<br />
<br />
<br />RETURN DUCTS
<br />IN UNCONDITIONED SPACE
<br />1,14
<br />1.10
<br />1.09
<br />1.10
<br />1,07
<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 />INFILTRATION PRACTICE SPM
<br />(SEE TABLE 9Pl
<br />PRACTICE #1 13.8
<br />PRACTICE #2 10.9
<br />#<l 711
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />6A-8 COOLING SYSTEM MULTIPLIERS (CSMI
<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 />PT AC & Room Units (EERI 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. PTAC-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 & Uo
<br />HWM 3098 2775 I 2664 2562 2467 2379 2297 2220 2138 2081 2018
<br />Lo 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 & UO
<br />I-lWM RIl Il? ?R ?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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