Document Ym2JZX8D7D23Kynjbo75kLMK

440 CHAPTER 24 1965 Guide And Data Book Table 13B .... Coefficients of Transmission (U) of Hat Masonry Roofs with 'BuiH-up Roofing with and without Suspended Ceiling* (Summer Conditions, Downward How) them coefEcrenfj or* xprestad n Bio per (hoar) (square feel) {fabrentier! degree difference in toapcrotvro between (tie air on the fwo sides), and an bond on on oviddo wmd vefocfly of 7.5 mph Example--Roof I' 2 Exomple of Substitution Resistance* used an given below in this tnhht or tn Table S ot 4 Construction (heat flow down) Resistance (R) 1. Outside surface (7-$ mph wind).. 2. Built-up.roofing (H in.)................ 3. Roof insulation (none)................... 4. Concrete slab (gravel agg.) (6 in.) 5. Temporary form bd........................ 6. Air space* (8 in.)....................... 0.96 . o.ss . 0.00 . 0.48 . 0.00 . 0.99 7. Gypsum lath (H in.) and H in. plaa. (It. agg.).................................................... 8. Inside surface (still air)................. L . 0.64 . 0.99 Total resistance....................................................... $.61 U = 1/R =* 1/5.0/................................................ 0.28 See value 0.28 in boldface type in table below. Resistances used ore given below in this table or in Table S or 4 Replace item 3 with roof insulation (C**0.36) and remove suspended ceiling Total resistance............... Deduct 6. Air space.... 8.61 7. in. Gypsum plaa. (lL wlatt.hag(ag;,[ * and K 0.64 1.6S Difference.............................. Add 3. Roof insulation (C 0.36) 1.98 9.78 Total resistance =................ P-I/R-l/J.Tff-'............ 4-76 0.21 To Adjust J Vgfoot tor Construction with Addod Insufatioo to Air S, Roof tnsulatkm--No Celling C value of roof Emulation Type of Ceiling Suspended CeiBng* Gyptusn bd. Mata) lath (Vt tn.) and plat. and plat. Acoustical tOe On gyp sum bd. (H bv) n ti t U] Concrete dab11 (Gravel agg.) (4in.). .0.3 Temporary.................... (0in.).-.O.4d| Temporary.................... (8in.). ,0.64\ Temporary.................... Lt wt. agg (2in.). .9.99\ Corrugated metal*.. Insulation bd. (1 in.).. Insulation bd. (IK in.) Glass fiber bd. (1 in.). (3in.)..S.aa Corrugated metal*.... Insulation bd. (1 in.).. Insulation bd. (1H in.) Glass fiber bd. (1 in.). (4in.)..4. Corrugated metal*___ Insulation bd. (1 in.).v Insulation bd. (1H in.) Glas fiber bd. (1 in.). 0. 31 0.22 0.51110.30 0.21 0.47 0.280.20 0.17 0.16 0.16 0.14 0.14 0.14 0.12j0.ll .32 0.29 0.31 0.12jO.K .30 0.28 0.30 0.11 0.1010.290.270.28 0.30 0.34]0.25 0.29 0.32 [0.24 0.280 23 0.220.23 0.21 0.22 0.20 0.22 0.20 0.20 0.19 0 27 0.20 0.130 lip.100.1 9.78t0 15 0.13 0.090 09[0.0810.i <T70 13 0.11 10.08 0 .08 0.07 4.0010 130.111 0.080 0.07 0 0.16 0.11 10 0.09 8.78|0 i4..cinmi 0.111 o.ioto o.ior 0.080 0:08 0 0.080 0.07 0.06 0.06 o 0.14 0.100 0.08 5.7$|0 o.io 0.080 0.06 1.17\0 0.09] 0.07 0.06 4.om 0 .08 0.07 0.20 0.19 0.19 .210.17 0 0.13;(0.12 0.13 .130.12 0.11 0.11 [O.Il 0. 110.11 OTO 0.09 0.11 0. 0.11 0.10 or. io 0.10(0.160. 0.16 0.13 10.11 0.11 0.11 OTO 0.10 OTO 0.09 0.10 10 0.09 0.09 0.10 0.10 0.10 0.1 O.i . 0.14 0.13 140.140 0.12| 0.12 OTO OTO OTO 0.09 0.09 0.09 0.09 6.09 O.i 0.08] 0.1 0.09 0.15 OTO 0." 10 0.09] 0.13 0.09 0.08] 0.< Oil 0.09 0.1' 0.08] Gypsum slab* (2in.)..1.901 Gypsum bd. (H in-) - Insulation bd. (lin.).. Insulation bd. (1H in.) Asbestos-cement bd.' . - M in.)........................ Glass fiber bd. (1 in.). (3 in.). .1.8 Gypsum bd. (H in.).. Insulation bd. (1 in.).. Insulation bd. (IK in.) Asbestos-cement bd. 0.22] OT7(0.14|OT2|OTO| 00..1152]0*10(0.09].0:-0089 [0.22 0.21 0.22 0.22 0.23 0. .17 0.18 0.16 ].0.12(]j0o..1142 0.15to.u 0.12]0.12 0.15 0.13 0.13 0.11 0.12ito.13 0.10 o.ii 0.12 OTO [|0.0m0.34|0.23|[0.180 .110.09] ft091|0.: 0.07 .23 0: . 24 .12 0.12]0.12 .27(0.19 [0.150.13 . lGrO. 13]to.no. O.lffli 0.'' -201[0.19 0. |0T4|0.13|0T3[0T3| 0.10 0.1 0.080.07)0.06|0 0.26 0T3 0.210.14 0.12 0.200.18 0.19 0.17 0.11 0.11 0.11 OTO 0.170.15 0.16 0.15 0.120.11 0. .11 0.100.11 to- 100 TO Vs in.)................... 1. Gians fiber bd. (1 in.). (4in.).:f.4d Gypsum bd. (K in.).. Insulation bd. (I in.).. Insulation bd. (IK in.) Asbestos-cement bd.* M in.).......................... Glass fiber bd. (1 in.).. .30(0.21,|0.160.T3] 140; TOO.i |?.45|0.23jOT 14 0.12(0 , .110.09 0.09 0/ . T5fe 0.0 .07 0.C .090.C 070.C .07 0.C .090.C .07 0.C 0.22 0.18 OT60.17to.16 (0.110.12 0.11 0.12 0.11 ! 0.17 0.17 0.17 . T5 0.13 0.12 [0Tl[ OTO OTO 10 0.09 1f0o.1.l8l}|(o0.t19i|1o0.t1i9| )0.20O0.T1O6WW] ..109500..1160 0.14 0.09 29 30 *****'* See oMietpuudina footnote* Table ISA. Design.Hel Transmission Coefficients 441 Table I4A... . Coefficients of Transmission (If) of Wood or Metal Construction Hat Roofs and Ceilings* (Winter Conditions, Upward How) CoefBdeah or* j(pressed In Btu per (hour) (square foot) (Fatirentierf degree difference in temperature between A* and ere bated upon on outside wind velocity of 15 mph the two odd), Example --ftoof J 2 Exempli of Substitution Resistances used are given below *n this table or in Table S or 4 Construction Resistance (R) (Heat flow up) . JV 1. Outside surface (15 mph wind) 2. Built-up roofing. % in................ 3. Roof insulation (C = 0-72)----- 4. Wood deck (1 ip.)........................ - 5. Airspace*......................... .......... 6. Gypsum wall board (Vi in.).... 7. Acoustical tile (M in.)--glued- 8. Inside surface (still air)............ .. 0.17 .. O.SS .. 1.S9 .. 0.98 .. 0.86 .. O.SS .. 1.19 .. 0.61 Total resistance........................... ..6.84 17 - 1/R = 1/684............. . , . , 0.17 See value 0.17 in boldface type in table below. * Resistances used are given below in this table or in Table S or 4 Replace item 4 with 2 in. wood deck (ex posed to inside) and omit items 5, 6, and 7. ' Total resistance....... .......... ................................ 6.84 Deduct 4. Wood deck (1 in.)0.98 5. Airspace.'................................. 0.86 6. Gypsum wall board (Vi in.).. O.SS 7. Acoustical tile (M in.) glued.. t .19 $.84 Difference.................................... Add 4. Wood deck (2 in.)....... ...... 9.60 .......... ` 9.0S Total resistance C7 - 1/R - 1/4.55 - 4.68 . 0.22 To Adjmi U Yatuet for Conrfrvctiori with Added Insulation a Mr Space. See ToUe 16 - ---------------------------- Type of Ciffing Type of Deck {Bo2f-p Roof a AH Caret) Motoriol C-J--4 , R Added on Top of Oocfcd Gypsum Bd. in. and Plot.) Con duct- C U. wL Sand Bitis- None Non* egg-' egg. toncn Hie- Hh. 0.32 0j64 0.41 1 UUU 'T A B c U D - Metal Lath and Pics. Irani Bd. (Hi"-) Acoustical T3* Lt wt. egg. Hit Sand egg. Plain (1.43) or H. plot, sand On Furring H*- egg. (1.52) Hta- !'* On Gypsum BdTMinJ H tn- Kin- 0A7 0J3 U7 JJ9 1.78 ITJ 220 UU U EF G H1 J K Wood* 1 in. 0.98 None 0.72 / .39 0.36 9.78. 0.24 4.17 0.19 5.96 0.15 6.67 0.12 8.SS 0.48 0.31 0.28 0-29 0.22 0.20 0.21 0T7 0.16 0T6 -0.13 0.13 0.14 0.12 0.11 0T1 OTO OTO OTO 0.09 0.08 0.30 0.21 0.16 0.13 0.12 0.10 0.09 0.29 0.21 0.16 0.13 0.12 0.10 0.09 0.33 0.22 0.17 0.14 0.12 OTO 0.09 0.23 0.17 0.14 0.12 OTO 0.09 ..0.08 0*24 0.21 0.22 0.18 0.16 0.17 0.14 0.13 0.14 0.12 0.11 0.12 0.11 0.10 OTO 0.09 0.09 0.09 0.08 0.08 0.08 0.20 0.16 0.13 0.11 OTO 0.09 0.07 Wood* 2 in; S.OS None 0.72 0.36 0.24 0.19 0.15 0.12 1.S9 9.78 4.17 6.96 6.67 8.SS 0.32 0.23 0.22 0.18 .0.17 0.14 0.14 0.12 0.12 0.10 OTO 0.09 0.09 0.08 0.22 0.17 0.13 0.11 OTO 0.09 0.08 0.23 0.17 0.14 0.12 OTO 0.09 0.08 0.22 0.17 0.14 0.12. OTO 0.09 0.08 0.24 0.18 0.14 0.12 0.11 0.09 0.08 ; 0.18 0.15 0.12 0.10 0.09 0.08 0.07 0.19 0.17 0.18 0.15 0.14 0.15 0.13 0.12 0.12 0.11 0.10 OTO OTO 0.09 0.09 0.08 0.08 0.08 0.07 0.07 0.07 0.16 0.13 0.11 0.10 0.09 0.08 0.07 Wood* 3-in. 3.98 None 0.72 0.36 0.24 0T9 0.15 0.12 1.S9 9.78 4.17 6.96 6.67 8.SS 0.23 0.18 0.17 0.17 0.14 0.14 0T4 0.12 0.12 0.12 0.10 OTO 0.10 0.09 0.09 0.09 0:08 0:08 0.0E 0.07 0.07 0.18 0.14 0.12 OTO 0.09 0.08 0.07 0.18 0.14 0.12 0.10 0.09 0.08 0.07 0.19 0.15 0.12 010 0.09 0.08' 0.07 0.15 0.12 0.11 0.09 0.08 0.07 0.07 0.16 0.14 0.15 0.13 0.12 0.12 0.11 0.10 0.10 0.09 0.09 0.09 0.09 0.08 0.08 0.08 0.07 0.07 0.07 0.07 0.07 0T4 0.11 0.10 0.09 0.08 0.07 0.06 1 z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 16 17 T8 19 20 21 Preformed slabs--wood fiber and cement binder 2 in. 8.60 3 in. 6.40 Plat metal roof deck 0 None None 0.21 0.17 0.16 O.k 0.13 0.13 None 0.72 1.S9 0.36 9.78 0.24 4-17 0.19 6.96 0.15 6.67 0.12 -8.33 0.9C 0.4C 0.2( O.lf 0.1 .0.1 0.1 0.44 0.27 0.2C 0.1C 0.12 0.1 0.CK 0.38 0.25 0-19 0.15 0.13 0.11 0.09 0.17 0.13 0.42 0.27 0.19 0.15 0.13 0.11 0.09 0.17 0.13 0.41 0.28 0.19 0.15 0.13 0.11 0.09 0.18 0.13 0.48 0.29 0.21 0.16 0.14 0.11 OTO . 0.14 0.11 0.29 0.21 0.16 0.13 0.12 OTO 0.09 0.15 0.14 0.i4 0.12 0.11 0.11 0.32 0.22 0.17 0.14 0.12 0.1C 0.0s 0.27 OTS 0.15 0.13 0.11 0.1C 0.0? 0.29 0.21 0.16 0.13 0.11 OTO 0.08 0.13. 0.11 0.25 0.18 0.15 0.12 0.11 0.09 0.08 23 23 24 25 26 27 28 29 30 * Bee ten section Overall Coefficients tar basis o< calculation*. To idjast V nine* (or the effect of insulation between (rmraing memhers, spee Table IS. ^ Wood deck 1, 2, sad 3 in. is ueumed to be */n. If. end 2f in. thick,-respectively. The thermal conductivity k b awmwid to be 0.80. ,, . ft e yepor benier is used beneath roof insulation it will have a neslicitte effect on the C/.Tshie. For information on vapor bonier requirement* MoMon xn BuQdins Constractioa, and Chapter 22,