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WINTER POINT MULTIPLIERS (WPM) 98 WINTER OVERHANG FACTORS (WOF) ,..........- CLIMATE ZONES 4 5 6 ~'-- ~ OH RATIO 1.0 .11 .12 .17 .18-.26 27 35 I 36-46 147-.57 .58-.70 1.71-.83 1.84-1.18 I 1.19-1.72 I 1.73-2.73 I 2.74+ 1 SINGLE PANE GLASS . N 1.0 1.03 1.05 .108 110 1.13 1.15 1.18 1.20 1.24 1.29 1.34 1 1 NElNW 10 107 110 115 120 1.25 130 135 139 150 1.59 167 1 1 ElW 10 .71 .57 .19 -.20 -.65 -105 -1.48 -2.03 -3.01 -4.06 -5.04 1 SElSW >-. 10 .93 .90 .80 .68 .54 39 .22 .05 -.33 -.71 -101 COI S 1.0 .95 .92 .83 .70 .54 .36 .13 -.13 -.70 -.98 -10Q 1-0: ~o DOUBLE PANE GLASS u::J1 <./)1 N 1.0 1.05 107 1.11 114 118 121 124 128 134 140 147 I 1 NElNW 10 1.11 116 124 132 141 148 1.56 1.63 180 194 2.08 1 ElW 1.0 .88 .82 .66 .50 31 .15 -.03 -.26 -.66 -110 -1.50 1 1 SElSW 1.0 .95 .92 .85 .76 .65 .54 41 .28 -.01 -.30 -.52 1 1 S 10 .96 .94 .87 .78 .65 .51 33 .13 -.30 -.51 -.60 .. OH LENGTH' o It. 1 It. 11f2 It. 2 It. 3 It. 31f2 ft. 4Y2 ft 51f2 It. 61f2 It. 91f2 It. 14 It. 20 It. + . To select by Overhang Length, no part of glass shall be more than 8 It. below the overhang OVERHANG RATIO = OH LENGTH OH HEIGHT I k-L H J 9C WALL WINTER POINT MULTIPLIERS (WPM) FRAME WOOD STEEL R.VALUE EXT ADJ EXT ADJ 0- 69 6.8 5.3 9.4 67 7 - 10.9 2.5 21 4.4 33 11 .12.9 20 18 3.3 2.6 13 - 189 18 16 3.0 2.4 19 - 259 11 1.0 2.6 2.2 26 & U 7 7 1.4 12 9D DOOR WINTER POINT MULTIPLIERS (WPM) DOOR TYPE EXTERIOR ADJACENT WOOD 7.6 5.9 INSULATED 5.1 4.0 9F FLOOR WINTER POINT MULTIPLIERS (WPM) . 01 CONCRETE BLOCK' FACE BRICK INT. INSULATION EXT. INSUL R.VALUE WOOD FR LOG NORMAL WT. NOR. WT. O. 6.9 7.0 6 INCH R.VALUE EXT ADJ EXT 7.10.9 2.1 R.VALUE EXT 0- 2.9 60 3.1 60 11.18.9 1.7 0.2.9 22 3. 4.9 3.8 2.3 2.8 19 - 25.9 10 3.69 12 5. 6.9 2.9 19 2.0 26 & Up .6 7&U 9 7. 109 2.3 15 15 R.VALUE BLOCK 8 INCH 11 -18.9 15 1.1 8 0-2.9 3.7 R.VALUE EXT 19 - 25.9 .8 7 3 - 6.9 2.6 0.2.9 12 26 & Up .5 .5 7 - 9.9 18 3.6.9 9 10 & Up 13 7& Up 7 9E CEILING WINTER POINT MULTIPLIERS (WPM) UNDER ATTIC R.VALUE WPM 19 - 21.9 1.0 22 - 25.9 .9 26 . 29.9 .7 30 . 37.9 .6 38 & U .4 SINGLE ASSEMBLY R-VALUE WPM 10-10.9 1.8 11 - 12.9 1.6 13 - 18.9 1.5 19 - 25.9 1.1 26 & U .6 CONCRETE DECK ROOF CEILING TYPE R-VALUE DROPPED EXPOSED J 10 - 13.9 1.2 1.3 14 . 20.9 .7 .7 21 & U .4 .3 ~';' ;.;;:..:~;:;~:. :.;:t:\:::1'~::::~: ~~t>{.::::f';;!M::jMW~:;:::: SLAB-ON-GRADE RAISED RAISED WOOD" EDGE INSULATION CONCRETE POST OR PIER STEM WALL WI UNDER R-VALUE WPM R-VALUE WPM CONSTRUCTION FLOOR INSULATION ADJACENT R.VALUE WPM WPM WPM 0-2.9 2.5 0-2.9 4.0 0- 69 79 if~\.,j . ;.\;.- ,:".. .: :'~'~::~~:~~:~N: 5.3 3 - 4.9 1.7 3 - 4.9 1.8 7.10.9 21 .7 21 5 - 6.9 2.4 5 - 6.9 1.1 11 - 189 15 .5 18 7 & Un - 2.7 7 & Uo .8 19 & Up 9 .3 10 9G INFilTRATION WINTER POINT MULTIPLIERS (WPM) INFILTRATION PRACTICE WPM (See Table 9P) PRACTICE # 1 6.2 PRACTICE # 2 4.1 PRACTICE # 3 2.2 9H DUCT MULTIPLIERS (DM) Aeturn Ducts Aeturn Ducts A-Value In Unconditioned Space In Conditioned Space Supply 4.2-5.9 1.14 1.10 Ducts in 6.0-6.6 1.10 1.07 Unconditioned Space 6.7 & up 1.09 1.06 Supply 4.2-5.9 1.10 1.00 Ducts in 6.0-6.6 1.07 1.00 Conditioned Space' 6.7 & up 1.06 1.00 1 For multipliers for other types of concrete block construction see section 903.2(b). 2 For multipliers for other types of raised wood assemblies see section 903.2 (e) 1. , Ducts in conditioned space need to be insulated only to the A-Value necessary to prevent condensation. -5 -