91-1933 - Laserfiche WebLink

Browse Search

WINTER POINT MULTIPLIERS (WPM) 98 WINTER OVERHANG FACTORS (WaF) CLIMATE ZONES 4 5 6 ~ OH RATIO 1.0 .11 .12 .17 .18 .26 .27 .35 .36 46 I 4757 .58 .70 I .71 .83 I .84 1.18 I l19 1.72 I 1.73 2.73 2.74+ I SINGLE PANE GLASS I 1.0 1.03 1.05 .108 1.10 113 1.15 l18 1.20 1.24 1.29 134 I N I NE/NW 1.0 107 1.10 1.15 1.20 1.25 130 135 139 1.50 1.59 1.67 I . E/W 1.0 .71 .57 .19 -.20 -.65 -1.05 -148 -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 CDI S 1.0 .95 .92 .83 .70 .54 .36 13 -.13 -.70 -.98 -109 .....00 ~o DOUBLE PANE GLASS cd' (/)1 N 1.0 1.05 1.07 111 114 1.18 1.21 1.24 1.28 134 1.40 147 . . NE/NW 1.0 1.11 1.16 1.24 132 141 148 1.56 1.63 1.80 1.94 2.08 I E/W 1.0 .88 .82 .66 .50 .31 .15 -.03 -.26 -.66 -1.10 -1.50 . I SElSW 1.0 .95 .92 .85 .76 .65 .54 41 .28 -.01 -.30 -.52 I . S 1.0 .96 .94 .87 .78 65 .51 .33 .13 -.30 -.51 -60 .. OH LENGTH' Oft. 1 It. 1112 ft. 2 It. 3 It. 3112 ft. 4V2 ft 5112 It. 6V2 It. 9112 ft. 14 It. 20 It. + * To select by Overhang Length. no part of glass shall be more than 8 ft. below the overhang OVERHANG RATIO = OH LENGTH OH HEIGHT r k-L H J 9C WALL WINTER POINT MULTIPLIERS (WPM) FRAME WOOD STEEL R.VALUE EXT ADJ EXT ADJ O. 69 68 5.3 94 6.7 7 - 10.9 2.5 2.1 44 33 11 - 129 2.0 1.8 3.3 2.6 13 - 189 18 16 3.0 24 19 - 25.9 1.1 1.0 2.6 22 26 & U .7 .7 14 12 90 DOOR WINTER POINT MULTIPLIERS (WPM) DOOR TYPE EXTERIOR ADJACENT WOOD 7.6 5.9 INSULATED 5.1 40 9F FLOOR WINTER POINT MULTIPLIERS (WPM) 01 CONCRETE BLOCK' INT. INSULATION EXT. INSUL. NORMAL WT. NOR. wr. EXT ADJ EXT 60 3.1 6.0 3.8 23 2.8 2.9 19 2.0 ~3 1.5 1.5 1.5 1.1 .8 .8 .7 5 .5 FACE BRICK R.VALUE WOOD FR o - 6.9 7.0 7 - 10.9 2.1 11 -189 17 19 - 25.9 1.0 26 & Up6 R.VALUE BLOCK o - 2.9 3.7 3 - 6.9 2.6 7 - 99 1.8 10 & Up 13 LOG 6 INCH R.VALUE 0-2.9 3 - 6.9 7 & U 8 INCH R.VALUE 0-2.9 3 - 6.9 7 & Up EXT 2.2 12 9 EXT 12 9 .7 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 .', .;:~:r:~:~::...;<<:~.:;::t::.:..::~.... SLAB-ON-GRADE RAISED RAISED WOOD" EDGE INSULATION CONCRETE POST OR PIER I 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 79 .' x... 5.3 3 - 4.9 1.7 3.4.9 1.8 7 -10.9 2.1 I .7 2.1 5 - 6.9 - 2.4 5 - 6.9 1.1 11 -18.9 15 I 5 1.8 7&~ - 2.7 7 Po. Un .8 19& DO .9 I .3 10 9G INFILTRATION WINTER POINT MULTIPLIERS (WPM) INFIL TRA TlON PRACTICE WPM (See Table 9P) PRACTICE # 1 6.2 PRACTICE # 2 4.1 PRACTICE # 3 2.2 9H DUCT MULTIPLIERS (OM) Return Ducts l1eturn 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 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 R-Value necessary to prevent condensation. -5 -