Document ppZDoq49ez1yLjpJOkGZ3p7NX

HEATING VENTILATING AIR CONDITIONING CUIDE 1940 Table 6. Coefficients of Transmission (U) of Frame Interior Walls and Partitions'1 Coefficients are expressed in Btu per hour per square foot per degree Fahrenheit difference in temperature between the air on the two sides, and are based on still air (no wind) conditions on both sides. TYPICAL CONSTRUCTION DOUBLE PARTITION (Finished on Both 8ides or Studding) SINGLE Partition Wall (Finish No. on One Air 8idb or Space Studding) Between Studding Flaked Gypsum Between Studding Rock Wool Fill* Between Studding Min- flexible Insulation Between Studding (Oqc Air Stud Space Faced One Side with Bright Aluminum Foil Space) Type of Wall Wood Lath and Plaster On Studding Metal Lath and Plaster* On Studding Plasterboard (H >n-) and Plaster* On Studding in. Rigid Insulation and Plaster* On Studding 1 in. Rigid Insulation and Plaster* On Studding 1H in. Corkboard and Plaster* On Studding 2 in. Corkboard and Plaster* On Studding 77 78 79 80 81 82 83 A 0.62 0.69 0.61 0.35 0.23 0.16 0.12 B 0.34 C 0.11 0.39 0.11 0.34 0.10 0.18 0.083 0.12 0.066 0.081 0.052 0.063 0.045 D 0.076 0.078 0.075 0.063 0.054 0.044 0.038 E 0.21 0.23 0.21 0.14 0.097 0.070 0.057 F 0.24 0.26 0.24 0.15 0.10 0.073 0.059 Computed from factors marked by * in Table 2. Thickness assumed 3% in. Plaster on metal lath assumed H in. thick. Plaster assumed H in* thick. ( )Table 7. Coefficients of Transmission U of Masonry Partitions Coefficients are expressed in Btu per hour per square foot per degree Fahrenheit difference in temperature between the air on the two sides, and are based on still air (no wind) conditions on both sides. TYPICAL CONSTRUCTION No. Plain Walls (No Plaster) Walls Plastered on One Side Wails ; . Plastered on Both Sides Type op Wall 4-ln. Hollow Clay Tile 4-in. Common Brick 4-in. Hollow Gypsum Tile 2-in. Solid Plaster 84 [85 86 87 Computed from factors marked by * in Table 2. 106 A 0.45 0.50 0.30 -- B 0.42 0.46 0.28 -- C 0.40 0.43 0.27 0.53, T a b l e 8. C o e ffic ie n ts of T ransm ission V) of F rame C onstruction F loors an d Ce il in g s 0( Coefficients are expressed in B tu per hour per square foot per degree Fahrenheit difference in temperature between the a ir on the two sides, and are based on stul a ir (no w ind) conditions on both sides. TYPICAL CONSTRUCTION TYPE OF FLOORING ' CHAPTER 5. HEAT TRANSMISSION COEFFICIENTS AND TABLES 1 0.46 0.30 0.28 0.28 0.21 0.22 0.13 0.086 0.068 0.10 ssS .2f S=s S-g ag 3*11* . S.s .Sfg!s|g.AS Cd Q So a ,, 0* t&O'ss d.a Ila15g O 1 0.34 | 0.34 |[ 0 .2 5 || 0 .2 5 | 0 .2 4 . 1 ' 24 | . 0.23 0.16 0.13 | 0.18 | 0.14 | 0.14 o! C4 o iQO oo t- r od | 0.19 | 0.19 0.11 | 0.12 || 0.066 | O .U o || . 0 .2 7 || . . 0.21 | 0.20 | | | | | | Joists Yellow Pine Flooring* on | sro | 91 0 n | 0 .6 9 || 0.62 | 0.61 | 0.23 | 0.59 | 0.17 | 0.079 | 0.16 | i No Flooring < teo o 4 o o - to w to ts CO 9- - | None | | F lexible* In s u la tio n (2 in.) | | F le x ib le * In s u la tio n (1 in.) | | B lig h t A lu m in u m Foil* J R ig id In s u la tio n (1 in.) a n d P la s te r ( M in.) |, N o n e | . None | None | j | INSULATION BETWEEN JOISTS No. . | None' | None j1 N o n e W ood L a th and Plaster M e ta l L a th and Plaster in.) a a5 i *as* 9 9 9 cu fl fl 9 a .s a5 X eo uo V 9 fl9 .A *a3 w<5 9 9 2et' 2 107 M e ta l L a th and Plaster M e ta l L a th and Plaster M e ta l L a th and Plaster M e ta l L a th and P laster . j G CO a 1 13 PS c i u -& 9 9 o a 9 G X o A 9 0 1 u T ype o f C e ilin g No C elling 180'0 0.063 0.10 0.087 0.066 O .U 0.094 C orkboard (2 In.) and P laster ( ) in .) None Computed fro m factors marked b y * in.T able 2. Thickness assumed to be % in. Thickness assumed to be % in. Tf3l <8 2 o V o n a ie> V J3 V JO 1 o V 3 ~a > H * s a vc o