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WINTER POINT MULTIPLIERS (WPM) CLIMATE ZONES 4 5 6 , i 6A.10 WINTER OVERHANG FACTORS /wOF) J OH RATIO I .00-.11 I .12-.17 I .18-.26 .27-.35 I .36-.46 I .47-.57 I .58-.70 I .71-.83 I .84-1.18 1.19-1.72 1.73-2.73 2.74+ SINGLE PANE GLASS ---- N 1.00 1.03 1.05 1.08 1.10 1.13 1.15 1.18 ( 1.20..) 1.24 1.29 1.34 NE/NW 1.00 1.07 1.10 1.15 1.20 1.25 1.30 1.35 T.39 1.50 1.59 1.67 EJIN 1.00 (:71.'/ .57 .19 -.20 -.65 -1.05 -1.48 -2.03 -3.01 -4.06 -5.04 SElSW 1.00 .93 .90 .80 .68 .54 .39 .22 .05 -.33 -.71 -1.01 ba: S 1.00 ,/.95./ .92 .83 .70 .54 .36 .13 -.13 -.70 -.98 -1.09 ~[ - DOUBLE PANE GLASS N 1.00 1.05 1.07 1.11 1.14 1.18 1.21 1.24 1.28 1.34 1.40 1.47 NElNW 1.00 1.11 1.16 1.24 1.32 1.41 1.48 1.56 1.63 1.80 1.94 2.08 EJIN 1.00 .88 .82 .66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50 SElSW 1.00 .95 .92 .85 .76 .65 .54 .41 .28 -.01 -.30 -.52 S 1.00 .96 .94 .87 .78 .65 .51 .33 .13 -.30 -.51 -.60 OH LENGTH' Oft. 1 ft. 1'12 ft. 2ft. 3ft. 3'12 ft. 4'12 ft. 5'12 ft. 6'12 ft. 9'12 ft. 14ft. 20ft.+ 'TO SELECT BY OVERHANG LENGTH. NO PART OF GLASS SHALL BE MORE THAN 8 FT. BELOW THE OVERHANG. ~ ~., ~. %' , r,.. fi; ~. ~, ?~ 6A.l1 WALL WINTER POINT MULTIPLIERS /wPM) FRAME ",., CONCRETE BLOCK' F FACE "AICK I>. LOG -' INT. INSULATION XT.INSU R.VALUE WOOD FR WOOD STEEL ,;' NORMAL WT. NOR. WT. 0-6.9 7.0 6 INCH R.VALUE EXT ADJ EXT ADJ };'; R-VALUE EXT ADJ EXT 7-10.9 2.1 R-VALUE EXT 0-6.9 6.8 5.3 9.4 6.7 ;;;1". 0-2.9 6.0 3.1 6.0 11-18.9 1.7 0-2.9 2.2 7-10.9 2.5 2.1 4.4 3.3 'co;} 3-4.9 3.B 2.3 2.8 19-25.9 1.0 3-6.9 1.2 11-12.9 2.0 tf.8'\ 3.3 2.6 f~J i~~ 2.9 1.9 2.0 26 & Uo .6 7&Uo .9 13-18.9 1.8 1']" 3.0 2.4 /2".'31 1.5 1.5 ",'.'}} R-VALUE BLOCK I...,. 8 INCH 19-25.9 1.1 1.0 2.6 2.2 ll-lB.9 1.5 1.1 .B , 0-2.9 3.7 R-VALUE EXT 26& Un .7 .7 1.4 1.2 19-25.9 .B .7 3-6.9 2.6 i 0-2.9 1.2 26& Uo .5 .5 7-9.9 1.B I 3-6.9 .9 10R.lln 1 ~ I 7 R.lln 7 if r:. 6A.12 DOOR WINTER POINT MULTIPLIERS DOOR TYPE EXTERIOR ADJACENT WOOD 7.6 5.9 INSULATED @ @ WPMl 6A.13 CEILING WINTER POINT MULTIPLIERS (WPM) UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF R.VALUE WeM R.VALUE WPM CEILING TYPE 19-21.9 ( 1.0 ) 10-10.9 1.B R.VALUE DROPPED EXPOSED 22-25.9 .9 11-12.9 1.6 10-13.9 1.2 1.3 26-29.9 .7 13-1B.9 1.5 14-20.9 .7 .7 30-37.9 .6 19-25.9 1.1 21 & Uo .4 .3 38 & Uo .4 26-29.9 .6 ~O R. IJn 4 RAISED WOOI)2 POST OR PIER STEM WALL wi UNDER CONSTRUCTION FLOOR INSULATION WPM WPM 7.9 1.B ~1 .7 1.5 .5 ADJACENT WPM 5.3 2.1 1.B 6A-16 DUCT MULTIPLIERS IDMI RETURN DUCTS RETURN DUCTS R-VALUE IN UNCONDITIONED SPACE IN CONDITIONED SPACE SUPPLY DUCTS IN 4.2-5.9 1.14 1.10 UNCONDITIONED SPACE 6.0-6.6 r1.10 ) 1.07 6.7 & Uo 1.09 1.06 SUPPLY DUCTS IN 4.2-5.9 1.10 1.00 CONDITIONED SPACE' 6.0-6.6 1.07 1.00 .1';7 R.lln 1.06 1M 6A.17 HEATING SYSTEM MULTIPLIERS /HSMI SYSTEM TYPE HEATING SYSTEM MUL T1PLlERS /~ Central Heat HSPF 6.40-6.79 6.80-6.89 /S.90-7.39 7.40-7.B9 7.90-8.39 B.40-BB9 _B.9~~ __9.4-~Jl~_ Pump Units HSM .53 .50 .49 .../ .46 .43 .41 __ , .3B ,.~~ HSPF 9.90-10.39 lo.4O-10.B9 10.90-11.39 11.40-11.B9 11.90-12.39 12.40 & uo HSM -,_._~- .34 .33 .31 .30 .29 .2B PTHP COP 2.50-2.69 2.70-2.89 2.90-3.09 3.10-3.29 3.30-3.49 3.50-3.69 3.70-3.B9 ~90-4.!L HSM .40 .37 .34 .32 .30 .29, .27 .26 Electric Strin 1.0 Gas & LP Gas 1.0 (See Table 6A-18 for Credit Multiplier) MINIMUMS: CENTRAL UNITS-AIR SOURCE SPLIT SYSTEM 6.8 HS!,F. SINGLE PKG. 6.6 HSPF, WATER SOURCE 3.8 COP, GROUND WATER SOURCE 3.4 COP, PTHP SEE TABLES 6-6 TO 6.8. 6A.1S INFILTRATION WINTER POINT MULTIPLIERS (WPMl INFILTRATION PRACTICE WPM SEE TABLE 6A-21 PRACTICE #1 6.2 PRACTICE #2 4.1 1 FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2.1 OF APPENDIX C. 2 MULTIPLIERS FOR OTHER TYPES OF RAISED WOODASSEMBUES SEE SECTION 3.1 OF APPENDIX C. 3 DUCTS IN CONDITIONED SPACE NEED TO BE INSULATED ONLY TO THE R.VALUE NECESSARY TO PREVENT CONDENSATION. -5-