Document jN5ryvnGgeG98wV4E6Q4bR5R5

172 CHAPTER 9 1952 Guide Table 2. Conductivities (k) and'ConductAncek;(C) op Building 'and Insulating Materials--Continued These constant* are erprereed in Btu per {hour) (equare/oot) (Fahrenheit degree temperature difference). Conductivities (k)areper inch thickness and conductance* (C7) are for thickness .or construction stated, not per inch thickness. Matb&ial Description p o . 0H Q a Conduct ivity OB Conduct Resistakce aH0, a< fa ance n1 Per 1 For Inch Thick G)f*. 3 zH H z 3 (*> (C) Thick ness ness Listed (0 GS MASONRY MATERIALS '. --(Continued) CONCBBTB., . .......................... Sand and gravel aggregate, -' various ages and mixes.. -- Sand and gravel aggregate., 142 75 limestone aggregate............ . 132 Cinder aggregate................... 97 75 75 Steam treated limestone slaff aggregate................... 74.6 75 Punucefkuned . in Cali* fornia) aggregate0....... 65.0 . 75 -. ` ' ' turned clay ag- 59.9 75 Burned clay aggregate......... . 67.1 75 Blast furnace slag aggregate. 76.0 70 Expanded .vermicuEte ag- .20 Expanded vermieulite^ ag 90 gregate.........................-- .26.7 90 Expanded vermieulite ag- gregate......... ........................ 35 '90 Expanded vermieulite ag- . gregate............................... . 50 . 90 Expanded Vermieulite ag gregate, 1:9.4 mix.. ..-- .26.3 119 Expanded Vermieulite ag gregate, 1:2J) mix................ 45.6 119 Perlite aggregate, 1:10.3 mix. 24.4 119 Perlite aggregate 1:2.9 mix... 47.6 119 Concrete plank....................... Cellular concrete......... ........ Cellular concrete.,.................. Cellular concrete.'.............. 76 40.0 50.0 .60.0 75 75 75 75 . Cellular concrete.................... 70.0 75 Air-cooled slag aggregate.... 124.2 119 Air-cooled slag aggregate.... 134.9 119 11.35 to 16.36 12.6 10.8. 4.9 2.27 2.42 2.28 2.86 .1.6 0.68 0l76 0.S6 1.10 0.97 1.60 0.75 1.45 2.6: 1.06 1.44 1.80 2.18 5.3 6.9 r 0.09 -- to -- -- 0.06 0.08 0.09 -- 0.22 -- __ -- -- - 0.44 - 0.41 , A 0.44 -- 0.35 0.63 - -- -- - 1.47 - - 1.32 - - _ 1.16 - 0.91 - - 1.03 - __ 0.63 -- 1.33 0.69 __ --, -- 0.40 -- -- 0.94 -- 0.69 - __ -- -- 0.56 0.46 __ __ -- 0.19 __ -- 0.17 -- : 8 In. Concrete Blocks . 8 in. three oval oore, sand and gravel aggregate........ 126.4 40 8 in. three oval core, crushed 0.90 _ 1.11 IlllJOwlIWMMIMt limestone aggregate?......... 134.3 .40 8 in. three oval core, cinder - 0.86 .. 1.16 n}0Q):(jI 86.2 40 r; 0.58 8 in. three oval core, burned - 1.73 clay aggregate0.................... 67.7 40 0.50 1 - 2.00 8-in. three oval core, ex panded blast furnace slag aggregate0............................ 8 in. three oval core, air 40 -- 0.49 , -- ;2.04 cooled slag aggregate.......... - 40 - 0.68 - 1.47 12 In. Concrete Blocks (fi) (4) 4 (4) (4) (4) (41 f4) (3) (3) (3) (3) C3) () m in hi (3) (3) ob fit ) (h1i) (4) (41 .(4) (4) (4) (4) ; *8* >t 12 in. three oval core,'sand and gravel aggregate?........ 13 in. three oval oore, cinder 12 in. three oval core, burned clay aggregate___ 124.9 ' 40 86.2 40 * 78.7 ` 40 - 0.78 0.53, 0.47 -- 1.28 1.88. 2.13 (4) (4) (4) See footnotes oh first page of Table 2. A u tb o b itt 1 A utbobitt | ' Heat Transmission Coefficients of Building Materials 173 Table ,2.: Conductivities (k) and Conductances (C) of Building and Insulating Materials--Continued These conetanU are eipreeeed in Bln per (hour) (square foot) (Fahrenheit degree temperature difference.) Conductivities (A) are per inch thickness and conductances (C) are for thickness or construction stated, not per inch thickness. Material Description P o a O Conduct-! IVITY OB a Conduct Resistance a to ance aB. fa O d >H 3 za A 3 H z< a Per For Inch Thick ) (O Thick ness ness Listed G) G) QS MASONRY MATERIALS --{continued) .Gtpbum................................... PLASTERING MATERIALS 3 in. solid gypsum partition tile........................................ 3 in. three cell gypsum par tition, tile............................. 4 in. three dell gypsum par* titiou tile............................. 87} percent gypsum, 12} . percent wood chips............ Gypsum plaster..................... Gypsum plaster, } in. thick. Cement plaster.................... Wood, lath and plaster, to tal thickness | in................ Gypsum plaster and ex panded vermieulite, 4 to 1 mix.......................... .......... Gypsum vermieulite plaster Mix. 100 lb:. 2 cu ft........... Mix. 100 lb: 3 cu ft............. Gypsum perlite plaster Mix. 100 lb: 2 cu ft........... ' Mix. 100 lb: 3 cu ft............. Gypsum sand plaster Mix. 100 lb: 200 lb............... Mix. 100 lb: 300 lb....... i... Insulating plaster 0.9 . in. thick applied to | in. gyp sum board......................... -- .- 51.2 74 _ __ -- 73 -- ------70 39.9 75 '40.7 63 43.5 64 49.1 -6442.5 64 104 53 107 52 54.0 75 2.41 - 1.66 3.30 -- 8.00 0.85 .1.84 .1.63 1.68 1.35 5.55 5.77 '-- ' 0.74 0.60 _ 8.80 2.50 __ -- _ -- _ -- 1.07 0.42 - - 0.60 0.30 -- : 0.13: 1.18 0.54 0.61 0.60 0.74 0.18 0.17 -- 1.35 1.67 - _ 0.11 --: 0.40 -- _ -- _ -- __ -- 0.93 (4) (4) (4) (4) (4) ei (4) () o0)i oa)i h>i (3) ROOFING : Asbestos shingles: ............... 65.0 Asphalt, composition or prepared............ ................. 70.0 Asphalt shingles..................... 70.0 Built-up roofing, bitumen _or felt, gravel or slag surfaced0........ ...................... Slate........................................... -- Wood shingles..... ................. -- 75 - 6.0 _76 6.5 76 -- 6.5 _ 1.33 _ -- 10.00 -- -- . -- 1.28 -- -- 0.75 0.10 -- 0.17 0.15 0.15 (3) (3) (3) _r- (3) -- 0.78 WOODS Balsa.......................................... 20.0 90 o:58 __ Balsa.......................................... - 8.8 90 0.38 -- 1.72 2.63 __ --. (li Balsa.......................'.................. 7.3 California redwood, 0 % moisture.............................. 28.0 Cypress..................................... 28.7 75 0.70 86 : 0.67 _ -- 1.43 1.49 0)' (4) -- (I) Douglas fir, 0 % moisture.. 34.0 75 0.67 -- Eastern hemlock, 0 % 1.49 -- (4) moisture............................ Long leaf yellow pine, 0 % : moisture................. ........ Mahogany .,:........................ 30.0 40.0 34.3 . 75 75 -86 0.76 0.86 0.90 - __ -- 1.32 1.16: , ... __ 1.11 -- (4) (4) (n | Hard maple, 0 % moisture. 46.0, 75 1.05 -- 0.95 -- (4) Maple........................................ 44.3. .86 Maple, across grain................ 40.0 75 1.10 1.20 -- -- 0.91 0.83 ! Norway pine; 0% moisture. 32.0 75 0.74 -- 1.35 Red cypress, 0 % moisture. 32.0 75 0.79 -- 1.27 -- -- -- -- (1? (3) (4) *4) Red oak, 0 % moisture.. 48.0 75 1.18 -- 0.85 -- (4) Short leaf yellow pine, 0 % moisture............................. 36.0 75 0.91 _ 1.10 __ (4) Soft elm, 0 % moisture.. 34.0 75 0.88 -- 1.14 -- (4) See footnotes.ou first page of Table 2.