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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 J .27 .35 .36 46 I .47 .57 .58-.70 .71 R1 ..::l .84- 1.18 I 1.19--1.72 1.73 2.73 I 2.74+ I -=ce.. SINGLE PANE GLASS I N 1.0 1.03 1.05 ,108 1.10 1.13 1.15 1.18 1.20 1.24 1.29 1.34 I I NEJNW 10 107 1.10 1.15 1.20 125 1.30 1.35 1.39 1.50 1.59 1.67 I I EJW 10 .71 .57 .19 -.20 -.65 -105 -1.48 -203 -3.01 -4.06 -5.04 I -,33 >-1 SElSW 10 .93 .90 .80 .68 .54 .39 .22 .05 -.71 -1.01 enl S 1.0 .95 92 .83 .70 .54 .36 .13 -.13 -.70 -.98 .109 t--cr:: ~o DOUBLE PANE GLASS u:J1 (/)1 ~. 10 105 1.07 1.11 114 1.18 121 124 1.28 1.34 1.40 147 I I NE/NW 1.0 1.11 1.16 1.24 1.32 1.41 1.48 156 1.63 1.80 1.94 2.08 I -- I E/W 10 .88 82 66 .50 .31 .15 -.03 -.26 -.66 -1.10 -150 ~---_.- I SE/SW 10 .95 92 .85 .76 .65 .54 .41 .28 -01 -.30 -.52 I --..------.---- I S 1.0 96 94 .87 .78 .65 .51 .33 13 -.30 -.51 -.60 .. OH LENGTH' o It. 1 It. 1112 II. 2 It. 3 ft. 3V2 ft. 4V2 It 5112 II. 6V2 It. 9V2 ft. 14 ft. 2011.+ . To select by Overhang Length, no pan of glass shall be more than 8 ft. below the overhang OVERHANG RATIO = OH LENGTH OH HEIGHT I k-L H J 9C WALL WINTER POINT MULTIPLIERS (WPM) , 01 FRAME CONCRETE BLOCK' FACE BRICK WOOD STEEL INT. INSULATION EXT. INSU L. R.VALUE WOOD FR LOG R.VALUE EXT ADJ EXT ADJ NORMAL WT. NOR. WT, O. 6.9 70 6 INCH O. 69 68 53 94 67 R.VALUE EXT ADJ EXT 7.10.9 2.1 R,VALUE EXT 7.10.9 25 2.1 44 3.3 O. 29 60 3.1 6.0 11.18.9 17 0.29 22 11 .129 20 1.8 3.3 26 3. 49 3.8 23 2.8 19.25.9 1.0 3.6.9 1.2 13.18.9 18 1.6 3.0 24 5. 69 2.9 1.9 2.0 26 & Up 6 7 & Up .9 19.259 1.1 1.0 2.6 22 7.10.9 23 1.5 1.5 R.VALUE BLOCK 8 INCH 26 & UP .7 7 14 1.2 11.18.9 1.5 1.1 iii 0.29 3.7 R.VALUE EXT 19.259 8 7 .. ........ 3.6.9 26 0.2.9 1.2 . .... 26 & Up 5 5 7. 9.9 18 3.69 9 10 & Up 1 3 7 & Up 7 90 DOOR WINTER POINT MULTIPLIERS (WPM) DOOR TYPE EXTERIOR ADJACENT WOOD 76 59 INSULATED 51 40 9F FLOOR WINTER POINT MULTIPLIERS (WPM) 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 CONCRETE DECK ROOF _~EILlNG TYPE. DROPPED EXPOSED 1,2 1.3 .7 .7 ,4 .3 .WPM .1JL 1.6 1.5 1.1 ,6 R-VALUE 10 -10.9 11 . 12.9 13.18.9 19.25.9 26 & U R-VALUE 10.13.9 14.20.9 21 & U 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 O. 6.9 7.9 "@tw.~;';w;W;':'t'nWr;IMft'/:~' :~:::~: .. 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 .18.9 1.5 5 1.8 7 & Uo - 2.7 7 Po Un ,8 19 & Up 9 3 10 96 INFILTRATION WINTER POINT MULTIPLIERS (WPM) INFIL TRA TION PRACTICl: WPM (See Table 9P) PRACTICE # 1 6,2 PRACTICE # 2 4.1 PRACTICE # 3 2,2 9H DUCT MULTIPLIERS (DM) Return Ducts Return Ducts R-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 , For multipliers for other types of concrete block construction see section 903,2(b), :' 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 R-Value necessary to prevent condensation, -5 -