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<br />~UMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A-1 SUMMER OVERHANG FACTORS (SOF 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 />NElNW 1.00 .94 ,91 .85 .79 .72 .68 .63 .58 .50 .40 .36
<br />.....a: EJW 1.00 ,95 .92 .85 ,78 ,70 .64 .58 .52 .42 ,33 .26
<br />~o
<br />gl 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 />OH I FNClTW o It, 1 ft, 1%ft, 2ft. 3ft. 3% ft. <1% It. <;1/, It fl1j, It. 9% ft. 1<1 It. ?Olt+
<br /> 'To select bv Overhang Lenoth no oart of alass shall be more than 8 ft. below the overhana.
<br />
<br />6A-2 WALL SUMMER POINT MULTIPLIERS SPM
<br />FRAME
<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 />
<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 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 & Up 1.4 1.3
<br /> 38 & Uo .4 26-29.9 1,1
<br /> 30 & UO OQ
<br />6A-5 FLOOR SUMMER POINT MULTIPLIERS ISPMI
<br />SLAB.ON.GRADE RAISED RAISED WOO[)2
<br />EDGE INSULATION CONCRETE POST OR PIER STEM WALL wI UNDER ADJACENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R.VALUE SPM R.VALUE 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 Po [In -31.6 7 Po [In -1.7 1Q Po (In -0.9 -1.8 1.0
<br />
<br />6A-8 COOLING SYSTEM MULTIPLIERS ICSMI
<br />SYSTEM TYPE COOLING SYSTEM MULTIPLIERS ICSMI
<br />Central Units (SEERI 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 (EERI Ratino 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 & Up
<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 />SPM)
<br />
<br />
<br />13,8
<br />10.9
<br />7
<br />
<br />6A-7 DUCT MULTIPLIERS DM
<br />
<br />SUPPLY DUCTS IN
<br />UNCONDITIONED SPACE
<br />
<br />R.VALUE
<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 />1.
<br />
<br />SUPPLY DUCTS IN
<br />ONDITIONED SPACE'
<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 & Up
<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 />tp 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 /> HWM R<1 .42 2R ?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 ONL YTO THE R-VALUE NECESSARYTO PREVENT CONDENSATION.
<br />
<br />-3-
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