Document jgVxL6Kd5EKBB4YgzGYR50gny

Heating Ventilating Air Conditioning Guide 1939 (C)Table 2. Conductivities (k) and Conductances of Building Materials and Insulators8--Continued The coefficients are expressed in Bln per hour per square foot per degree Fahrenheit per 1 in. thickness unless otherwise indicated. Material Description Cement Fine Aggre gate 0-No. 4 gate Slump No. 4-M Per Cent Voids P o |i <S5 Expanded Burned Clat_____ Steam Treated Limestone Slaq. Pumice Mined in Calif Bt-Pboduct of Manufacture of Phosphates____ 1 1 1 1 1 8.00 7.00 8.00 8.00 8.00 Modulus 3.75 18.4 27.1 26.5 25.5 21.1 57.9 74.6 65.0 86.6 91.1 Haydite__ 1 8.50 1 8.50 21.8 21.8 67.1 67.1 0) O) Sand and gravel aggregate.. Sand and gravel aggregate used for calcu lations. Cores filled with 5.14 lb density oork_ Crashed limestone aggregate------------ Cinder aggregate Cinder aggregate used for calculations. Cores Plffl with 69.7 lb density cinders__ Cores filled with 5.12 lb density cort_ Cores filled with 14.2 lb density rock wool___ Haydiittee aggregat Cores filledwith 5.06 lb density oork______ 134.3 86.2 -i-** -it> Jg 6g gse5 Tj 5s la 75.57 2.28 74.49 2.27 74.68 2.42 74.62 3.19 74.43 3.42 75.89 2.89 74.60 2.815 0.900f l.OOOf 0.560f O.S56f 0.577f 0.600f 0.390f 0.250f' 0.266f' 0.49Sf 0.2061 0.44 0.44 0.41 0.31 0.29 0.35 0.34 1.11 1.00 1.79 1.17 1.73 1.66 2.56 4.00 3.76 2.02 4.85 u/~\ Sand and gravel aggregate.. Sand and gravel aggregate used for calcu lations. ' >1 Cinder aggregate........ ..............;________ Cores filled with 5.24 lb density cork_ v Haydite aggregaite_. Cores fii"lea with 5.6 lb density cork.. 86.2 ITT 0.777f 0.800f 0.531 f' 0.237f 0.468f 0.168f 1.88 4.22 2.13 5.94 Cinder aggregate--------LI------------------------------ 100.0 Double wall with 1 in. air space between--___ 100.0 1 in. space filled with 9.97 lb density rock wool 100.0 l.OO^t 0 358t 0.204f 1.00 2.70 4.90 5 x 8 x 12 block sand and gravel aggregate-- 0.380f (4) Him 5x8x12 block sand and gravel aggregate*. For notes see Page 95. 96 0.947t (4) Chapter S. Heat Transmission Coefficients and Tables Table 2. Conductivities (fc) and Conductances (Q of Building Materials and Insulators3--Continued -- tire expressed in Btu per hour per square foot per degree Fahrenheit per l in. thickness The coefficients are exprc* unless otherwise indicated. Material Description D e n s it y (Lb per Cu Ft) Si'S* s ta 5 la s rKrp 1 t3 D0 SS o OO ET b 5 o 01 a o B & < masonry materials Brice------------------------------- Baicxwoai-----.........CgMEirr Mobtab--------- ---------Concrete--------------------- Cellular____ Cellular____ -------- Cellular Cellular____ Typical fiber gypsum, 87.5% gypsum and 12.5% wood chips-------- Special concrete made with an aggregate of hardened clay--1-2-3 mix__ 40.0 50.0 60.0 70.0 51.2 101.0 75 75 75 75 74 70 Typical hollow clay (4 in.)..... ............. ........ Typical hollow clay (6 in.)* ............. 5.00' 9.20* 5.00* 12.00* 12.00* 16.36 1.06 1.44 1.80 2.18 1.66* 3.98 12.50* 12.00* l.OOf* 0.64f* 0.60f* 0.20 0.11 0.20 0.08 0.08 0.94 0.69 0.56 0.46 0.60 0.25 0.08 0.08 1.00 1.57 1.67 Hollow clay (2 in.)H-in. plaster both sides___ 120.0 Hollow clay (4 in.) H-iq. plaster both sides__ 127.0 - Hollow clay (6 in.) H-in. plaster both sides.__ 124.3 Solid gypsum_____ Solid gypsum____ Tile ob Terraszo____ __ --. Typical flooring 51.8 75.6 110 100 105 70 76 -- 0.40f* 0.31f* l.OOf 0.60| 0.47f 0.46f* 1.66 2.96 12.00* 2.50 3.23 1.00 1.67 2.13 2.18 0.60 0.34 0.08 IN8ULATION--BLANKET OR FLEXIBLE TYPES Chemically treated wood fibers held between layers of strong paper/ 3.62 Ee l grass between stroang pap er/.. 4.60 3.40 Flax fibers between strong papa1/ . 4.90 Chemically treated bog hair between kraft paper/___ . .... ......... 5.76 Chemically treated hog hair between kraft paper and asbestos paper/ 7.70 Hair felt between layers of paper/ 11.00 Kapok between burkp or paper/ 1.00 Jute fiber/.___ ____ 6.70 Ground paper between two layers, each H-in. thick made up of two layers of kraft paper (sample H-io- thick). 12.1 70 90 90 90 71 71 75 90 75 75 0.27* . 3.70 0.25 0.26 0.25 0.28 4.00 3.85 4.00 3.57 0.26 3.85 0.28 0.25 0.24 0.25 3.57 4.00 4.17 4.00 0.40f 2.50 INSULATION--SEMIRIGID TYPE Flat/ Flax and rye/____ ___ Felted hair and asbestos/. 75% hair and 25% jute/ 50% hair and 50% jnt*/ Jute/ Felted jute and asbestos/___ Compressed peat mrwn 11.00 90 0.26 12.10 70 0.30 13.60 90 0.32 7.80 90 0.28 6.30 90 . 0.27 6.10 90 0.26 6.70 75 0.25 10.00 90 0.37 11.00 70 0.26 3.84 3.84 3.33 3.12 3.57 3.70 3.85 4.00 2.70 3.84 IN80LATI0N--LOOSE FILL OR BAT TYPE friars For notes see page 95. a 1.60 j75 0.24 4n 4.17 (2) (5) ) (3) (3) (3) (O (3) _ (2) (2) (2) (4) (4) (3) (!) (!) (1) (3) (3) 3) (1) (i) (4) 0) (1) (3) (!) (t) (1) (1) (3) Cl) (3) (3) (3)