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<br />WINTER POINT MULTIPLIERS (WPM)
<br />
<br />CLIMATE ZONES 4 S {
<br />
<br />6A-l0 WINTER OVERHANG F.ACTORS IWOFI .36-,46 I .47-.57 I ,58-.70 T ,71-,83 I ,84-1.18 11.19-1.72 1.73-2.73 2.74+
<br />r OH RATIO .00-.11 .12-,17 I ,18-,26 .27-.35
<br /> SINGLE PANE GLASS -
<br />N 1.00 103 1.05 1.08 1,10 1.13 1.15 1.18 1.20 1.24 1.29 1.34
<br />NEJNW 1.00 1.07 1.10 1.15 1.20 1.25 1.30 1.35 1.39 1.50 1.59 1.67
<br />I Ef\N 1.00 .71 .57 .19 -.20 -,65 -1.05 -1.48 -2.03 -3.01 -4,06 .5.04
<br />I .93 .90 .80 .68 .54 ,39 .22 .05 -,33 -,71 -1.01
<br />>-, SEJSW 1.00
<br />m'
<br />1-' S 1.00 ,95 .92 .83 .70 ,54 .36 ,13 -.13 -.70 -.98 -1.09
<br />ua: DOUBLE PANE GLASS
<br />wo
<br />ul! 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
<br /><n I
<br />I NEJNW 1.00 1.11 1.16 1.24 1.32 1.41 1.48 1.56 1.63 1,80 1.94 2.08
<br />I ENJ 1.00 .88 .82 .66 .50 .31 ,15 -,03 -,26 -,66 -1.10 .1.50
<br />! SElSW 1.00 .95 .92 ,85 .76 .65 ,54 .41 ,28 -,01 -,30 ',52
<br />,
<br /> .. 1.00 .96 .94 .87 ,78 .65 .51 .33 .13 -.30 -.51 -.60
<br />I S
<br />~ OH LENGTH' Oft, 1 ft. 1'1, ft. 2ft. 3 ft, 3'/, ft, 4'1, ft. 5'12 ft, 6'1, ft. 9'12 ft, 14ft, 20 ft.+
<br />
<br />TO SELECT BY OVERHANG LENGTH. NO PART OF GLASS SHALL BE MORE THAN 8 FT, BELOW THE OVERHANG,
<br />
<br />6A-l1 WALL WINTER POINT MULTIPLIERS (WPMI
<br /> ~~JE BLOCK' FACE BRICK LOG
<br /> FRAME INT. INSULATION EXT.INSUL R-VALUE WOOD FR
<br /> WOOD STEEL NORMAL WT. NOR. WT. 0-6.9 7,0 Ill~ lew
<br />R-VALUE <<XT ADJ EXT ADJ R-VALUE EXT ADJ EXT 7-10.9 2.1 R.VALUE EXT
<br />0-6.9 6.8 5.3 9.4 6.7 0-2.9 6,0 3,1 6.0 11-18.9 1.7 0-2,9 2.2
<br />7.10,9 2.5 2.1 4.4 3.3 3-4,9 3.8 2,3 2,8 19-25.9 1.0 3-6,9 1.2
<br />11-12.9 2.0 1.8 3.3 2.6 5-6.9 2.9 1.9 2.0 26 & Un .6 7 & Uo .9
<br />13.18,9 1.8 1.6 3.0 2.4 7-10.9 2.3 1.5 1.5 R-VALUE BLOCK 8 INCH
<br />19-25.9 1,1 1,0 2.6 2.? l1-1R.!l 1.5 1.1 }l , 0-2,Q 3.7 R~V AllJF FXT
<br />26& Un ,7 .7 1.4 1.2 19-25,9 ,8 .7 3-6,9 2.6 0-2,9 1.2
<br /> 26 & Un .5 .5 7-9,9 1.8 3-6.9 .9
<br /> 10 R.IJn 11 7 R.lln 7
<br />
<br />6A-12 DOOR WINTER POINT MULTIPLIERS
<br />DOOR TYPE EXTERIOR ADJACENT
<br />- ,- - - --- -------
<br />WOOD 7,6 5.9
<br />INSULATED 5,1 4,0
<br />
<br />WPM)
<br />
<br />6A-13 CEILING WINTER POINT MULTIPLIERS IWPMI
<br />UNDER ATTIC SINGLE ASSEMBLY CONCRETE DECK ROOF -.---.--
<br />R-VALUE WPM R-VALUE WPM CEILING TYPI
<br />19-21.9 1.0 10-10,9 1.8 R-VALUE DROPPED EXPOSED
<br />22-25.9 .9 11-12,9 1.6 10-13,9 1.2 1.3
<br />26-29,9 .7 13-18.9 1.5 14-20,9 .7 .7
<br />30-37.9 .6 19-25,9 1,1 21 & Un ,4 ,3
<br />38 & Un .4 26-29,9 ,6
<br /> 'lnR.lln .d
<br />
<br />6A-14 FLOOR WINTER POINT MULTIPLIERS IWPMI
<br />SLAB-DN-GRADE RAISED RAISED WOO[)2
<br /> POST OR PIER STEM WALL wI UNDER
<br />EDGE INSULATION CONCRETE CONSTRUCTION FLOOR INSULATION ADJACENT
<br />R-VALUE WPM R-VALUE WPM R-VALUE WPM WPM WPM
<br />0-2.9 2,5 0-2,9 4.0 0-6.9 7.9 1.8 5,3
<br />~3-49 .1.7 3-4.9 1.8 7-10.9 2.1 ,7 2,1
<br />5.6.9 .2.4 5-6.9 1.1 11-18,9 1.5 .5 1.8
<br />7Ii. Iln .'7 7~ A 10R. Iln Q 1 10
<br />
<br />6A-1S INFILTRATION WINTER POINT MULTIPLIERS (WPM)
<br />INFILTRATION PRACTICE WPM
<br />SEE TABLE 6A-21
<br />PRACTICE #1 6.2
<br />PRACTICE #2 4.1
<br />
<br />6A-16 DUCT MULTIPLIERS IDMI
<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 />6,0-6,6 1.10 1.07
<br />UNCONDITIONED SPACE 6,7 & Uo 1.09 1.06
<br />SUPPLY DUCTS IN 4,2-5,9 1.10 1.00
<br />CONDmONED SPACE' 6,0-6,6 1,07 1.00
<br />~ 1M 1-nil
<br />
<br />6A-17 HEATING SYSTEM MULTIPLIERS HSM
<br />SYSTE~ TYPE
<br />Central Heat
<br />Pump Units
<br />
<br />PTHP
<br />
<br />HSPF
<br />. HSM .__, _ _ .
<br />HSP,=-____ ..
<br />.. __tlSM
<br />COP
<br />HSM
<br />
<br />___ ---..1iEATI,NG SYSIEM MULTIPLIERS HSM
<br />6,40-9.79. ~@-lt~9 6.90.7.39 7.4O-7,~9
<br />_m ,53__ .,. ,50 .49 . ." AE.!_
<br />9,90-10,39 _, . 10,4Q-l0.81L .lQ.~Q-11.39 ,., 11.4O-11.89n
<br />,34_~,)1 ,30
<br />2,50-2,69 2.70-2,89 2,90.~3.09 3.10-3,29
<br />,40 ,37 .34 ,32
<br />
<br />7W-8,~
<br />.43_
<br />n.9O-12.39
<br />..29
<br />3.30-3.49
<br />,30
<br />
<br />MO-8,89 . .
<br />____AJ.
<br />12,40 & u
<br />,28
<br />3,50-3,69
<br />,29
<br />
<br />'n~.9-9.~~ ..~4.9.89
<br />__, ~38 _._ .36
<br />
<br />j;jectril!. StriQ.. _____. 1,0
<br />
<br />(3as& LPGa_s_ '.n ______...._..__. '___ __.. _LQ~~TClble6A.18forCreditMultiplier) ___._____________
<br />MINIMUMS CENTRAL UNITS-AIR SOURCE SPLIT SYSTEM 6.8 HSPF, SINGLE PKG, 6,6 HSPF, WATER SOURCE 3.8 COP, GROUND WATER SOURCE 3.4 COP. PTHP SEE TABLES 6.6 TO 6-8,
<br />
<br />1 FOR MULTIPLIERS FOR OTHER TYPES OF CONCRETE BLOCK CONSTRUCTION SEE SECTION 2,' 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 />.5.
<br />
<br />3.70-3,89 3,9O-4J~
<br />.27 .26
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