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<br />SUMMER POINT MULTIPLIERS (SPM)
<br />
<br />CLIMATE ZONES 4 5 6
<br />
<br />6A.l SUMMER OVERHANG FACTORS (SOFl FOR SINGl..E"AND DOUBLE PANE GLASS.
<br />~r OH RATIO .00-.11 ,12-.1711' .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 />t;a: ENV 1.00 .95 .92 ' .85 .78 .70 ,64 .56 .52 ,42 .33 ..26
<br />wO
<br />~L SElSW 1.00 .93 ,90 .Bl ,72 .62 .55 .49 .42 ,33 .27 .22
<br />S 1.00 ,91 .87 '.77 .67 .57 .50 .45 .39 .32 .26 .25
<br />IN' Oft 1 ft 1'hit 2 It" 1ft 1'/, It 4'h it l;l/, ft- .f;'Aft Q'hft- lAII ?Oll
<br /> 'To selecl bv Ovemano lenolh no OM e' nl.ss shall be more than 8 It, below Ihe ovemano.
<br />
<br />6A.2 WALL SUMMER POINT MULTIPLIERS (SPMl
<br /> ? CONCRETE BLOCK' FACE BAICK LOG
<br /> FRAMi; INT. INSULATION EXT. INSUL , A-VALUE WOOD FA
<br /> WOOD STEEL NORMAL wr. NOR. wr, 0-6.9 2.9 ,0' 6 INCH
<br /> . .I"
<br />R-VALUE EXT ADJ EXT ADJ R.VALUE EXT ADJ EXT 7-10.9 ,6 : R-VALUE EXT
<br />0-6.9 6.4 2.2 B.9 2.9 0.2.9 2.5 .9 2.5 11-18.9 .4 0'2.9 ,1.7
<br />7'10.9 2.3 .8 4,1 1.3 3-4.9 1.4 .7 .7 19.25.9 ,2 3-6.9 1.1
<br /> ' 1.9 .7 3.0 1.0 A-6.9 1.0 ,6 .3 26 & Vo .1 .. 7& Vo .8
<br />.11.12.9
<br />13-18.9 /1.7, ,6 2.8 0.9 7-10.9 ,8 .4 .1 R-YALUE BLOCK 8 INCH
<br />1.19.259 1.0 .3 2.4 0,8 11-18,9 .4 ,3 0 0.2.9 1.0 R-VALUE EXT
<br />26& Vo ,6 .2 1.3 0.4 19-25.9 .2 ,2 3.6,9 .6 0-2.9 1.0
<br />) 26 & Vo ,1 ,1 7.9,9 .4 3-6.9 ,8
<br /> 10 & Un 2 7 ~ Vo .i
<br />
<br /> 6A-4 CEILING SUMMER POINT MULTIPLIERS (SPMj
<br /> UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF
<br /> R-Y ALUE SPM R.YALUE SPM I CEILING TYPE
<br /> ' 19-21.9 1.1 10-10,9 I 3,0 R-Y ALUE I DROPPED EXPOSED
<br /> 22-25,9 ,9 11-12,9 2,7 10-13,9 I 3.0 3.3
<br /> 26,29.9 ~7 13.18,9 2.4 14,20.9 I 2,0 2,1
<br /> 30-37,9 ,6 19-25,9 1.8 21 & Va I 1.4 1.3
<br /> 38 & Vo .4 26-29.9 1.1
<br /> 10- Polin 0,9
<br />6A.S FLOOR SUMMER POINT MULTIPLIERS (SPMl
<br />SLAB-oN-GRADE I RAISED RAISED WOOD>
<br />, EDGE INSULATION CONCRETE POST OR PIER STEM WALL wI UNDER ADJ~CENT
<br /> CONSTRUCTION FLOOR INSULATION
<br />R-VALUE SPM R-YALUE SPM R-YALUE SPM SPM I SPM
<br />0.2.9 -31.9 0-2,9 -1.0 0.6.9 0,9 .5.8 5,3
<br />3-4.9 .31,8 3-4.9 .1.7 7.10.9 -1.1 -2.6 2.1
<br />5-6.9 -31.7 5-6,9 .1.7 11,18,9 -1.0 .2.2 1.6
<br />' 7" Iln ' .:11B I 7 & Un .1.7 . I HI" Un I -0,9 -IR 10
<br />
<br />6A-3 DOOR SUMMER POINT MULTIPLIERS SPM)
<br />DOOR TYPE EXTERIOR ADJACENT
<br />
<br />WOOD
<br />INSULATED
<br />
<br />7.2
<br />,
<br />
<br />2.4
<br />
<br />4.8
<br />
<br />1.6
<br />
<br />6A~ INFIL TRA nON SUMMER POINT MULTIPLIERS (SPM)
<br />INFILTRATION PRACTICE I SPM
<br />SEE TABLE 6A.21
<br />PRACTICE 111
<br />PRACTICE #2
<br />PR I
<br />
<br />
<br />6A-7 DUCT MULTIPLIERS COM)
<br />I RETURN DUCTS I RETURN DUCTS
<br />R.YALUE IN UNCONDITIONED SPACE, IN CONDITIONED SPACE
<br /> A,2-5,9 1.14 , /1.10
<br />SUPPL Y DUCTS IN
<br />UNCONDITIONED SPACE V 6,0-6,6 1,10 .' I V 1.07
<br /> 6,7 & Uo 1.09 i 1.06
<br />SUPPLY DUCTS IN 4,2'5,9 1.10 I 1.00
<br />CONDITIONED SPACE' 6,0'6,6 1.07 I 1.00
<br />6,7 & Vo- I 1 nl; I Ion
<br />
<br />6A-8 COOLING SYSTEM MULTIPLIERS (CSMl
<br />
<br />SYSTEM TYPE ./ I COOLING SYSTEM MULTIPLIERS (CSM)
<br />Central Units (SEER) / Ranna T 1 7,$,7,9 I 8.0,8,4 I 8.5'6,8 8,9-9.4 9,5-9,9 10,0,10,4/10,5,10,9111,0,11.4111.5_11,9112.0_12,4
<br />CSM I T 45 I .43 1 .40 ,38 ,36 ,34 I ,32 . ,31 I ,30 ! ,26
<br /> I I
<br />PTAC & Room Units (EER) Rarlna 12,5-12_9 130,13~ I 13,5.13,9 i 14,0-14.4 14,5'14,9 t 5,0-15.4 15,5'15,9; 16,0-16.4 i 16,5-16,9 I 17,0-17.4 : 17,5 & Uo
<br />CSM I 27 2E I .25 ; ,24 ,24 ,23 ,22 r ,21 I ,21 ! ,20 I ,19
<br /> MINIMUMS CENTRAL UNITS-,AIR COOl!;a S?L;- SYSTEM 100 SEER. SINGLE ~KG 9; SEER. GROUND WATER HEAT PUMP '1 0 EE;:; FTAC-SEE 7A6lE 6,2
<br />
<br />6A-9 HOT WATER MUL TlPLlEAS (HWMl
<br />
<br />SYSTEM TYPE HOT WATER MULTIPLIERS (HWMI ./
<br />. Ei' 80',61 ,82-,83 ,84, 65 ,66',87 ,88, 90:,1' /,91. 93 ,94.,96 ,97 & Ua
<br />EleClnc ReSIstance HWM 3879 3765 3695 3609 3527 ,/ 3411 3302 3200
<br />Natural Gas EF .43- 47 48.49 ,50',51 ,52',53 .54',55 ,56',57 ,56',59 ,60-,61 ,62,53 ,64.65 ,66 & Ua
<br />,HWM 2974 2564 2558 2459 2368 2264 2205 2132 2063 1998 1938
<br />LP Gas HWM . 3638 3259 3129 3009 2897 2794 2697 2607 2523 2444 2370
<br />
<br />I FOR MUlTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2,1 OF APPENDIX C, 2 MUl TlPUERS FOR OTHER TYPES OF i'lAlSEO WOODASSEMBUES SEE
<br />SECTION 3 1 OF APPENDIX C, J DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R'VALUE NECESSARY TO PREVENT CONDE.'ISA nON,
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<br />.j.
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