Document bOaJXgXewawLdzXz3Mmx59xb1

116 CHAPTER 9 1960 Guide Table 7 ..... Coefficients of Transmission (U) of Masonry Walls* Confidants are upnarf fa Btu per (hour) (sgvare foefl Ifabretdsmt degree difference fa temperaftn* 6afwa*n Use afa aa the tea dde*}, and arm based aa aa ovtdda wind refadfy of T5 opt Example--*Waff G 1 Resistance* used are given below in this table or in Table 3 or l Construction Rest,stance (ft) 1. Outside surface (15 mph wind)............................. 0.17 2. Pace brick (4 in.) (av. ft.)......................................... 0.89 3. Cement mortar 0 in)............................................... 0.10 4. Concrete block (cinder agg.)(4 in.).................... 1.11 5. Airspace1*........................................................................... 0.97 6. Gypsum lath 0$ in.).................................................. 0.33 7. Plan, (sand agg.) (K in)........................................... 0.09 8. Inside surface (still air)........................................... 0.08 Total resistance............................................................. j.gj V - 1/ft = 1/3.83 ................................................. 0.26 See value 0.26 in boldface type in table below. _______________ Example of Substitution______________ Resistances used are given below in this table or in Table 9 or 4 Replace items 6 and 7 with wood panels 0f in.) and vapor barrier applied over furring strips Total resistance.................................................................. Deduct 6. Gypsum lath 04 in.)..................0.99 7. Plas. (sand agg.) 04 in)........... 0.09 Difference................................................................................ Add 6. Vapor barrier......................................... 0.06 7. Wood panel 04 in.)........................... 0.94 Total resistance.................................................................. V - 1/ft - 1/4.4* ~...................................................... 3.8$ 0.41 9.49 1.00 4.4$ 0.23 Exterior Facing To Adjust U Vohet for Construction wirf> Added laudation between furring Strips, See Table 16 I| Interior Ffafrh_____ _____ dadrfag Mfa-on Wall Furring (Sand (U. wt (Sand (It wt. aaeJ OB9-I age*) agg.) Gypswa lofh (H trod M in. Pla*. on Furring fa*id. Bd. Lafb (>$ toJ and >4 in. Flos, on No (Send (U. wt. No (Sand plot. eggj oggj plat. oggj Wood lath M Flat. (Sand oqqJ Resistance * 0JI 0.39 0.13 0.47 0.32 0.41 0.64 3 1_52 0.40 w Am. Materia) Pace brick 4 in. 8tone 0.44 4 in. 0.31 Precast concrete 0.S9 (sand agg.) 4 in. 0.99 6 in. 0.41 _ Concrete block fCinder ft.ev.1 (4 in.) (6 in.) (12 in.) (Lt. wt. agg.) (4 in.) (8 in.) (12 in.) (Sand agg.) (4 in.) (8 in.) (12 in.) Hollow clay tile (4 in.) (8 in.) (12 in.) Concrete (Sand agg.) (f (6 in.) (8 in.) U y U U 0 U U <J U U u As C 0 E F G H 1 J K 1.1] 0.4! 0.39 1.71 0. 0.32 1.89 0.31 0.30 0.35 0.29 0.28 0.28 0.24 0.23 0.26 0.22 0.21 0.27 0.23 0.22 0.26 0.23 0.22 0.25 0.21 0.21 0.21 0.18 0.18 0.20 0.18 0.17 0.26 0.23 0.22 1.30 0.35 0.34 9.00 0.31 0.29 9.97 0.28 0.27 0.31 0.27 0.25 0.25 0.23 0;21 0.23 0.21 0.20 0.24 0.22 0.20 0.24 0.21 0.20 0.22 0.20 0.19 0.19 0.17 0.17 0.19 0.17 0.16 0.21 0.20 0.71 0.4S 0.46 1.11 0.4! 0.39 1.91 0.& 0.37 0.41 0.35 0.33 0.32 0.28 0.27 0.29 0.26 0.25 0.30 0.27 026 0.29 0.26 0.25 0.27 0.25 0.24 0.22 0.21 0.20 0.22 0-20 0.20 0.20 0.25 1 2 3 4 6 7 8 9 1.11 0.41 0.39 1.8b 0.31 0.30 9.30 0.26 0-25 0,35 0.28 0.24 0.28 0.23 0.20 0.26 0.22 0.19 0.27 0.22 0.19 0.26 0.22 0.19 0.25 0.21 0.18 0.21 0.18 0.16 0.20 0.18 0-16 0.26 0.22 0.19 10 U 12 0.99 0.6C 0.56 0.48 0.55 0.52 0.64 0.51 0.4S 0.49 0.45 0.42 0.36 0.34 0.32 0-32 0.31 0.29 0.34 0.32 0.31 0.33 0.31 0.30 0.31 0.29 0.28 0.25 0.24 0.23 0.24 023 0-22 0.33 0.31 0.30 13 14 16 Concrete block (Cinder agg.) s "> (8 m.) (12 in.) (Lt. wt. agg.) (4 in.) (8 in.) Common brick 4 in. 0.80 Precast concrete 0.79 (sand agg.) 8 in. 0.64 (12 in.) (Sand agg.) (4 in} (8 in.) (12 in.) Hollow clay tile a in.) (8 in.) (12 in.) Concrete (Sand agg.) (4 in!) !? !") (8 in.) 1.11 0.36 0.35 1.7* 0.20 0.29 1.8$ 0.28 0.27 0.32 0.26 0.25 0.28 0.22 0.21 1.30 0.32 0.30 9.0C 0.2/ 0.26 9.97 0.25 0.25 0.28 0.25 0.23 0.23 0.21 0.20 0.71 0.42 0.40 1.11 0.36 0.35 1.98 0.34 0.33 0.36 0.32 0.30 0.29 0.26 0.25 1.11 0.36 0.35 1.85 0.28 0.28 9.30 0.24 0.23 0.32 0.26 0.22 0.260.22 0.19 0.89 0.50 0.48 O.48 0.47 0.44 0.64 0.43 0.41 0-42 0.39 0.37 0.32 0.31 0.29 * 8w textacctaon CalrtilmitTn OmU Coefficients far btdi ot w<iiiM b To edjart U valuta for the eSect of added insnlstfan between framing members, see Table IS 0-24 0.21 0.20 0.22 0.20 0.19 0.26 0.24 0.23 0.24 0.20 0.18 0.29 0.28 0.27 0.25 0.21 0.21 0.22 0.20 0.19 0.27 0.25 0.24 0.25 0.21 0.18 0.30 0.29 0.28 0.24 0.21 0.20 0.22 0.20 0.19 0.27 0-24 0-23 0.24 0.20 0.18 0.30 0.28 0.27 0-23 0.20 0-19 0.21 0.19 0.18 0.25 0.23 0.22 0.23 0.19 0.17 0.28 0.27 0.26 0.19 0.17 0.17 0.18 0.16 0.16 0.21 0.19 0.19 0.19 0.17 0.15 0.23 0.22 0.21 0.19 0.17 0.17 0.18 0.16 0.16 0.21 0.19 0.18 0.19 0.17 0.15 0.22 0-22 0.21 0.24 0.21 0.20 0.22 0.20 0.19 0.24 0.23 0.24 0.20 0.18 0.30 0.28 0.27 16 17 18 19 20 31 S3 34 2S 26 27 28 29 30 Heat Transmission Coefficients of Building Materials 117 Table 8____Coefficients of Transmission (U) of Masonry Cavity Walls* Coefidnete an expressed fa 6te par (hour) Uqvaro foofi (FahrenMI degree rffffetenee fa temperature between the dr oe the two dded, end are bated oe aa oatdde wind rmtoaty of 15 mph _______________ fxampfa--Watl H 6 Example af Subdftvffas Resistance* used are given below in this table or in Table 3 or 4 Construction Resistance (ft) 1. Outside surface (15 mph wind)............................. 0.17 ~ 3. Common brick (4 in.) (av. ft.).............................. 0.76 3. Air space1*........................................................................... 0.97 4. Concrete block (gravel agg.) (4 iu.).................. 0.71 lulUlv | ^11 I llil 1 6. Gypsum lath 06 in.).............. ................................... 0.89 7. Plus. (It. wt. agg.) 0$ in.)....................................... 0.99 surface (still air)..................................... .. 0.68 Resistances used ore given below in tAis table or in Table S or 4 Replace item 4 with 8 in. concrete block and items 6 and 7 with % in. plas. (sand agg.) applied directly to concrete block. Total resistance................................................................... 4.90 Deduct 4. Concrete block (gravel agg.) 4 in........................................................ 0.71 5. Air space............................................ 0.97 6. Gypsum lath 0$ in.)........... 0.39 7. Plas.'(U* wt* agg.) (H ia*)------0-39 9.39 U - 1/S - 1 '/iso -................................................ 6.20 See value 0.20 in boldface type in table below. Add 4. Concrete block (gravel agg.) 8 in...................................................................... 1-11 1. Plas. (sand agg.) (H u>).................. 0.11 1.99 Total resistance ........................................................... $.80 U - UR- l/S-SO............................................................. 0-26 To Vfrrf U Values far Construction witfi Added tnsohtioa* between inner and Outer Tier* or batoem furring Strips, See Table 16 Interior Ffnufi Exterior Construction Av. * bum Section None . Wall Antal lalti and ^ fa. Fie*, an Furring Gypsum Lalb 0 faj and H M* ^as. on Furring Wood Imd Bd. lalft lafti and H tc* 6m. on Furring )4faFlas. rResistance U. wt. (Sand U. wt aggj agg.) oggj oggj 0J1 0.39 0J3 0.47 No pla*. 0.32 (Sand agg.) 0.41 U. w. agg.) 0A4 Ha ptas. 1.43 (Sand oggj 1.52 (Sand 099-1 0.40 z Materiol UU U y U U U U U y U A8 C D E F G H 1 Face brick (4 in.) Common brick Concrete block (gravel agg.) Concrete block (4 0.44 (Lt. wt. agg.). 0.71 0.34 0.32 0.29 1.30 0.27 0.26 (4 0.33 0.32 Clay tile (4 in.)........ 1.11 0.30 0.29 0.30 0.27 0.24 0.29 0.27 0.25 0.22 0.21 0.24 0.22 0.23 0.21 0.19 0.22 0.21 0.23 0.21 0.20 0.23 0.21 0.23 0.21 0.19 0.23 0.21 0.22 0.20 0.19 0.21 0.20 0.19 0.17 0.16 0.18 0.17 0.18 0.17 0.16 0.18 0.17 0.23 0.19 0.23 0.21 i 3 6 Concrete block (4 in.) 0.76 (Lt. wt. agg.). 0.30 0.29 l.lt 0.27 0.26 1.50 0.25 0.24 (4 .V .................. 0.3( 0.29 Clay tile (4 in.)........ 1.11 0-27 0.26 0.27 0.25 0.22 0.27 0.25 0.23 0.21 0.19 0.22 0.21 0.21 0.19 0.18 0.21 0.19 0.22 0.20 0.19 0.21 0.20 0.21 0.20 0.18 0.21 0.20 o.so 0.19 0.18 0.20 0.19 0.18 0.16 0.15 0.17 0.16 0.17 0.16 0.15 0.17 0.16 0.21 0.21 0.20 6 10 Concrete block (cinder agg.) (4 ID.) . Concrete block a 1.11 (Cinder agg.). (Lt. wt. agg.). 0.71 0 27 0.27 1.11 0.25 0.24 1.3C 0.23 0-22 (4 0.2 0.26 Clay tile (4 in.) -- 1.1 0.2S 0.24 0.25 0.23 0.21 0.24 0.23 0.21 0.19 0.18 0.21 0.19 0.20 0.18 0-17 0.19 0.18 0.20 0.19 0.17 0.20 0.19 0.20 0.18 0.17 0.20 0.18 0.19 0.18 0.17 0.19 0.18 0.17 0.16 0.15 0.16 0.16 0.16 0.15 0.14 0.16 0.15 0.20 0.17 0.20 0.18 11 IS 14 15 b To *d;ast V value* far the effect of added imuUtfap between fremias znti * If insulation is to be osed ia the tavitj it should be a water reafatant type. aw Table la