Document JvJaBxRQm3mrYBVxKOkDk1wEO

American Society of Heating and Ventilating Engineers Guide, 1930 Table 19. Coefficients of Transmission (U) of 4-in. Cut Stone Veneer on Concrete Walls ,,,,TM^~THESE COEFFICIENTS ARE EXPRESSED in B.T.U. PER HOUR PER SQUARE FOOT PEE 1 DEC. FAHR E3^^S?OFN15ESSsl^^H(SSraKN THB N TME TW SIDES AND ARE BASED ON AN OUTSIDE WIND TKlvaluesof U tnthislablearebasedonthefbllowinq ini emeuCbnductivthes orConductances which ore ex i jressed.tnB.t.u. jtone per Ur per Sq.Ft per 1*F 10.00 perl" {Concrete(Stone liZ:4mix) & 30perl' C ement Mortar &00per\' Ftaster board 3.7S peri' Ftaster (Gypsum) 2.J2 perf- VA>od Lath* Fluster 200 as applied Cxxk.board 0.30 perl' laid Insulation (Boardform) 0.33 perl" Celular Gypsum (l&*) 0.59 pert" .Flaked Gypsum, Dry (24^ 0.48 per |* V -, t .. . " - L . <. a* " J * ,. ^ 0. *4 Y= Thicknessof Insulationwhere specified Interior 1 Consli*uctton 1 Plain Walls -- Mo Interior Finish Cement Mortar Thickness ofConcrete --X Y <o 8" lO` 12' 16' A B cDE 0.459 0.413 0.377 0.345 0296 2 *z Plasteron Concrete 3 i Plaster on Metal Lath - Furred 4 i Plasteron Wood Lath-Furred 0.418 0380 0348 0321 0279 0.293' 0.224 0.257 0242 0217 0.279 0.261 0.246 0.232 0208 5 j Plaster on ^ Plaster board - Furred 0.280 0.262 0.247 0.233 0208 a i Plasteron Wood Lath on 7." fumna 6 Strips -- Cellular Gypsum fill b >" 0.184 0.176 0.169 0.163 Q15) 7 i Plasteron Wood. Lath on Z" Furrinai Strips - Flaked Gypsum Fill a if 0.164 0.158 0.152 0147. 0.137 & i 2 Plasteron Riqid Insulation -- 8 (Boardform) Furred r z 0.208 0198 0.188 Q180 0166 r 0.158 0.152 0.147 0.142 0.133 10 i Plasteron Cortboard set ini" ^,irK,iiL ivhji xar U if 0.134 0.130 0126 0122 0.116 2* QUO 0.107 Q104. 0.102 Q087 ; aBased on 1$4 in., the actual thickness of 2 in. furring strips. bThe coefficient used for cellular gypsum. 0.59 is for 18 lb. weight--weights as low as 12 lb. may be used. 42 Chapter 2--Heat Losses from Buildings Table 20. Coefficients of Transmission (U) of Concrete Walls with Stucco as Exterior Finish. Knte__ THESE coefficients are expressed in B.t.u, per hour per SQUARE POOT PER 1 DEC. FAHR. nrffKRENCE LN TEMPERATURE BETWEEN THE AIR ON THE TWO SIDES AND ARB BASED ON AN OUTSIDE WIND SSosURB OF 15 MILES PER HOUR. "tbevakiescf Um this Table are basedonthefallowinq Internal Conductivities or Conductances which are -- Concrete (Stone |.2:4mix) Plasterboard ft90 perr ST3 per* Plaster (Gypsum) 2.9Z perl Wood Lath 4 Plaster MO as applied Cork board 0.30 perl Riqid Insulation (Boardform) O.M perl Cellular Gypsum OB*) as<' Per,`. flaked Gypsum, Dry (TV) 0.46 perl fg-<rr7V.a.-. ' '* A * 4 0* , O 0 ** t* I" Stucco"^ ,| 1 'A * V. Thicknessdf Insulahon where specified ! Interior Construction on Wire Mesh Y 6' A Thickness of Concrete -- X. 8" IO* 12' 16" 20' e> c D E F i P)am Walls - Mo Interior Finish* 0.544 0.481 0.431 0.391 0.329 3.284 2 Plaster on Concrete 0.486 0.437 0.395 Q36I 0308 0268 3 5" PI asteron Metal Lath -- Furred --4 Plaster on Wood Lath Furred 0.326 0302 Q282 0.264 0234 3.210 0308 0.287 0.268 0.252 0225 0203 5 if Plaster on % Plasterboards Furred -j Plasteron Wood Lath on 2" Furrinq 6 Strips-Cellular Gypsum Fill ^ X Piastferon WoodLathon2 Furrmq 7 Strips - FlakedGypsum Fill 0.310 0.288 0170 0153 0226 0204 a if 0.1% 0.188 0.178 0.172 0.159 0.148 a 0.173 0.167 0.161 0.154 0.144 0.135 s 8 Plaster on Riqid Insulation _(Boardform) Furred 8 10 -5 Rasteron Corkboardset tn-^ Cement Mortar l* z 0.223 0.112 0.202 0.181 0.176 0163 r 0.1C.7 0.160 0.154 0.14*1 0.139 0.130' am>T 0.141 0.136 o.ir? 0.110 0.114 2" 0.1I4- 0.UI 0.108 0.105 aW 00% Based on \% in., the actual thickness of 2 in. furring strips. bThe coefficient used for cellular gypsum. 0.59 is for 18 lb. weight--weights as low as 12 lb. may be used. 43