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WINTER POINT MULTIPLIERS (WPM) 9B WINTER OVERHANG FACTORS (WOF) CLIMATE ZONES 4 5 6 ~ OH RATIO 1.0-.11 .12-.17 .18-.26 I .27-.35 .36-.46 .47-.57 1.58- .70 .71 .83 .84 1.18 1.19 1.72 1.73 2.73 2.74+ . SINGLE PANE GLASS I N 1.0 1.03 . 1.05 .1.08 1.10 1.13 1.15 1.18 1.20 1.24 1.29 1.34 . NE/NW . 1.0 1.07 1.10 1.15 1.20 1.25 1.30 1.35 1.39 1.50 1.59 1.67 . . E/W 1.0 .71 .57 .19 -.20 -.65 -1.05 -1.48 -2.03 -3.01 -4.06 -5.04 . >-1 SE/SW 1.0 .93 .90 .80 .68 .54 .39 .22 .05 -.33 -.71 -1.01 en. S 1.0 .95 .92 .83 .70 .54 .36 .13 -.13 -.70 -.98 -109 1-0:: ~o DOUBLE PANE GLASS uJ' U'J' N 1.0 1.05 1.07 1.11 1.14 1.18 1.21 1.24 1.28 1.34 1.40 1.47 . . NE/NW 1.0 1.11 1.16 1.24 1.32 1.41 1.48 1.56 1.63 1.80 1.94 2.08 . E/W 1.0 .88 .82 .66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50 . . SE/SW 1.0 .95 .92 .85 .76 .65 .54 .41 .28 -.01 -.30 -.52 . . S 1.0 .96 .94 .87 .78 .65 .51 .33 .13 -.30 -.51 -.60 ... OH LENGTH · o It. 1 ft. 11,2 It. 2 It. 3 It. 3Y2 It. 41,2 It 51,2 It. 61,2 It. 91,2 It. 14 It. 20 It. + * To select by Overhang Length, no pan of glass shall be more than 8 It. below the overhang. OVERHANG RATIO = OH LENGTH OH HEIGHT r~L H J 9C WALL WINTER POINT MULTIPLIERS (WPM) 01 FRAME CONCRETE BLOCK! FACE BRICK WOOD STEEL INT. INSULATION EXT. INSUL. R.YALUE WOOD FR LOG NORMAL WT. NOR. WT. O. 6.9 7.0 6 INCH R.YALUE EXT ADJ EXT ADJ R.YALUE EXT ADJ EXT 7.10.9 2.1 R.YALUE EXT 0- 6.9 6.8 5.3 9.4 6.7 7.10.9 2.5 2.1 4.4 33 0- 2.9 6.0 3.1 6.0 11.18.9 17 0-2.9 2.2 11 -12.9 2.0 1.8 3.3 2.6 3. 4.9 3.8 2.3 2.8 19 - 25.9 10 3 - 6.9 12 13 -18.9 1.8 16 3.0 2.4 5 - 6.9 2.9 19 2.0 26 & Up .6 7 & Up 9 R.YALUE BLOCK BINCH 19 - 25.9 11 10 2.6 22 7 -10.9 2.3 15 15 11 -18.9 15 1.1 iii 0-2.9 3.7 R.VALUE EXT 26 & Uo .7 .7 1.4 12 19 - 25.9 .8 .7 3 - 6.9 2.6 0-2.9 12 26 & Up .5 .5 7 - 9.9 1.8 3 - 6.9 .9 .~. .~. 4# M#NiFJf& {Ml$ti>\ 10 & Up 13 7 & Up .7 90 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) 9E CEILING WINTER POINT MULTIPLIERS (WPM) UNDER ATTIC SINGLE ASSEMBLY R.VALUE WPM R.VALUE WPM 19-21.9 1.0 10-10.9 1.8 22 - 25.9 .9 11 - 12.9 1.6 26 - 29.9 .7 13 - 18.9 1.5 30 - 37.9 .6 19 - 25.9 1.1 38 & U .4 26 & U .6 CONCRETE DECK ROOF CEILING TYPE DROPPED EXPOSED 1.2 1.3 .7 .7 .4 .3 SLAB.ON-GRADE RAISED RAISE WoOD. EDGE INSUL TION CONCRETE POST OR PIER STEM WALL WI UNDER I WPM CONSTRUCTION FLOOR INSULATION ADJACENT R.VALUE WPM R.VALUE R.YAWE WPM WPM 0-2.9 2.5 0.2.9 4.0 0- 6.9 7.9 5.3 3.4.9 -1.7 3.4.9 1.8 7 -10.9 2.1 I .7 I 2.1 5.6.9 - 2.4 5.6.9 1.1 11 -18.9 15 I .5 I 18 7 & lln 2.7 7 & Uo .8 19 & Up .9 .3 I 1.0 9G INFILTRATION WINTER POINT MULTIPLIERS (WPM) INFIL TRA TION PRACTIC'E WPM (See Table 9P) PRACTICE # 1 6.2 PRACTICE # 2 4.1 PRACTICE # 3 2.2 9H DUCT MULTIPLIERS (OM) 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 Space3 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. 3 Ducts in conditioned space need to be insulated only to the A-Value necessary to prevent condensation. -5 -