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<br />SOMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A.1 SUMMER OVERHANG FACTORS ISOI =l 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-U8 1.19-1.72 1.73-2.73 2.74+
<br />N 1.00 .94 .91 .87 .83 .79 .75 .72 r.69 ) .62 .56 .50
<br />NElNW 1.00 .94 .91 .8i .79 .72 .68 .63 :5'"8 .50 .40 .36
<br />t;a: EN! 1.00 .95 .92 (8s) .78 ,70 .64 .58 .52 .42 .33 .26
<br />wO
<br />~l SElSW 1. 0 .93 .90 .81 .72 .62 .55 .49 .42 .33 .27 .22
<br />S (1. 0) .91 .87 .77 .67 .57 .50 .45 .39 .32 .28 .25
<br />-nUll:tJ~T\.I' if 1 ft 11,i, ft 2ft ~ft ~1j,ft d.i!:it I\1/,ft E;1j,fI ' Ql/"it 1d.ft ?nft
<br /> 'To select bv Ovemano Lenoth no ""rt of nlass shall be more than 8 It. below the overhano,
<br />
<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 />CONCRETE BLOCK1
<br />INT. INSULATION
<br />NORMAL WT.
<br />EXT ADJ
<br />.9
<br />.7
<br />.6
<br />.4
<br />.3
<br />.2
<br />.1
<br />
<br />
<br />6A-3 DOOR SUMMER POINT MULTIPLIERS SPM)
<br />DOOR TYPE EXTERIOR ADJACENT
<br />
<br />WOOD
<br />
<br />7.2
<br />
<br />2.4
<br />
<br />6A-4 CEILING SUMMER POINT MULTIPLIERS ISPMI
<br />UNDER ArnC 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 '-:!r 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 & Un 1.4 1.3
<br />38 & Un .4 26-29.9 1.1
<br /> ~n~ OJl
<br />
<br />INSULATED
<br />
<br />
<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
<br />
<br />ADJ~CENT
<br />
<br />SPM
<br />5.3
<br />2.1
<br />1.8
<br />
<br /> 6A-7 DUCT MULTIPLIERS IOMI
<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 /> UNCONDITIONED SPACE 6,0-6,6 (' 1.10 ) 1.07
<br /> 6.7 & Uo 1.09 1.06
<br /> SUPPLY DUCTS IN 4.2-5.9 1.10 1,00
<br /> CONDITIONED SPACE3 6,0-6.6 1.07 1.00
<br /> p.nlln 10E; 1-00
<br />6A-8 COOLING SYSTEM MULTIPLIERS ICSMI
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS Ie MI
<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 III 0.5-10.9 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 "l5:5~15.9 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, GROUNO WATER HEAT PUMP 11.0 EER. PTA(}-SEETABLE 6-2
<br />
<br />6A-6 INFILTRATION SUMMER POINT MULTIPLIERS (SPM)
<br />INFILTRATION PRACTICE SPM
<br />SEE TABLE 6A.21
<br />PRACTICE #1
<br />PRACTICE #2
<br />
<br />6A.9 HOT WATER MULTIPLIERS IHWMI
<br />SYSTEM TYPE HOT WATERMUbIIPLI~1!iWM
<br />Electric Resistance EF .80-.81 ,82-,83 ,84-.85 ,86-.87 / .88.,90 I) ,91-.93 .94-,96 .97 & Uo
<br /> HWM 3879 3785 3695 3609 "- 3521......... 3411 3302 3200
<br />Natural Gas EF .43-.471 .48-.49 ,50-.51 ,52-.53 .54-,55 .56-,57 ,58-.59 .60-.61 .62-.63 .64-,65 .66 & Uo
<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
<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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<br />-3-
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