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172 CHAPTER 9 ' - 1953 GuideT Table .2. . Conductivities (k) and Conductances (C) of Building and Insulating Materials--CoaiiDiied These constants are expressed in Btu per (hour), (square foot) (Fahrenheit degree temperature.difference): Conductivities (t) are per inch thickness and conductances (C) are for thickness.or construction stated, not per inch thickness. Material- Description "o' ft a Conduct P o Q 0 ivity OR Conduct Resistance g0 H < ance G) (e)0 >* aZ 'cu 3a z <a (*> (O Per For Inch Thick Thick ness ness Listed w h oaH5 P QS < MASONRY MATERIALS --(Continued) . Concrete............................. Sand and gravel aggregate, .various ages and mixes... Sand and gravel aggregate. 142 Limestone aggregate............ 132 Cinder aggregate.................... 97 Steam treated limestone slag aggregate0.................... 74.6 Pumice (Mined in Cali fornia) aggregate0.. .......... 65.0 Expanded burned clay ag gregate................................. 59.9 Burned clay aggregate0........ 67.1 Blast furnace slag aggregate. 76.0 Expanded vermiculite ag gregate................................... 20 Expanded vermiculite ag gregate................................... 26.7 Expanded vermiculite ag gregate................................... 35 Expanded vermiculite ag gregate................................... 50 Expanded Vermiculite ag gregate, 1:9.4 mix............... 26.3 Expanded Vermiculite ag gregate, 1:2.9 mix..............i 45.6 Perlite aggregate, 1:10,3 mix.| 24.4 Perlite aggregate, 1:2.9 mix.. Concrete plank.................. Cellular concrete............... Cellular concrete............... Cellular concrete............... Cellular concrete............... Air-cooled slag aggregateAir-cooled slag aggregate. .47.6 76 40.0 50.0 60.0 70.0 124.2 124.9 .75 75 75 75 75 75 75 70 90 90 90 90- 119' 119 119 119 75 75 75 75 75 119 119 11.35 to 16.36 12.6 10.8 4.9 2.27 2.42 2.28 2.86 1.6 0.68 0.76 0.86 1.10 0.97 1.60 0.75 1.45 2.5 1.06 1.44 1.80 2.18 5.3 5.9 -- - 8 In. Concrete Blocks 12 In. Concrete Blocks 8 in. three oval core, sand and gravel aggregate.... 8 in. three oval core, crushed limestone aggregate.......... 8 in. three oval core, cinder aggregate........................... 8 in. three oval core, burned clay aggregate.................... 8 in. three oval core, ex panded blast furnace slag aggregate............................. 8 in. three oval core, air cooled slag aggregate......... 126.4 134.3 86.2 67.7 - 40 40 40 40 40 40 -- 0.90 - 0.86 - 0.68 -- 0.50 - 0.49 -- 0.68 unimww hww bfccn 0.09to 0.06 0.08 0.09 0.22 0.44 :0.41 0.440.35 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 (5) - (4) (4) (4) -- (4) -- . (4) (4) (4) (3) -- (3) -- (3) -- (3) -- (3) -- (1) U> (1) (1) (3) - (3) (3) (3) (3) (1) (1) -- 1.11 (4) - 1.16 (4) - 1.73 (4) - 2.00 (4) -- 2.04 (4) - 1.47 (4) Iff] ) f-'N >1 X. 12 in. three oval core, sand and gravel aggregate....... 12 in. three oval core, cinder aggregate........................... . 12 in. three oval core, burned clay aggregate___ 124:9 86.2 76.7 40 40 40 0.78 - 0.53 0.47 - 1.28 1.88 2.13 (4) (4) (4) See footnotes on first page of Table 2. I Heat) Transmission Coefficients:;of1 Buildings Materials 173 Table 2. * .Conductivities (k) and Conductances (C) of'Building! and Insulating Materials--Continued* These constants are.expressed in Btu per (hour)-(square foot) (Fahrenheit degree.temperature difference,) Conductivities <fc) are per inch thickness and conductances (C) are for thickness or ----- ihisbnex* Description T p o "o a Q Conduct ivity OB Resistance 0 Conduct 0 0 < ance hi - 0 Per For G) (e)>H* m Za sa H az< (k) (C) Inch Thick Thick ness ness listed 0oa. H P OS MASONRY MATERIALS --(continued) s'. GtpstJM.... ............... 3 in. solid gypsum partition tile.................................... 3 in. three cell gypsum par- tition tile........................... | 4 in. three cell gypsum par tition tile.......................... 87} percent gypsum, 12} percent wood chips.......... PLASTERING RIALS MATE- Gypsum plaster...!............... Gypsum plaster, } in. thick. Cement plaster........ ......... Wood, lath and plaster, to tal thickness } in................ Gypsum plaster and ex panded vermiculite, 4 to 1 mix..................................... Gypsum vermiculite 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............ Insulating plaster 0.9. in. thick applied to } in. gyp sum board............... 2.41 -- -- -- 0.74 ' _ - - 0.60 51.2 74 1.661 - __ . __ 3.30 __' __ 73 __ 8.80 -- 8.00 -- T 70 - 2.50 46.7 43.5 49-1 42.5 104 107 75 0.85 -- 63 1.84 __ 64 1.63 -- 64 -1.68 __ 64 1.35 -- 53 5.55 __ 52 5.77 -- 54.0 75 1.07 ROOFING WOODS Asbestos shingles........... .65.0 75 Asphalt, composition prepared...................... Asphalt shingles............ 70.0 75 . 70.0 75 Built-up roofing, bitumen or felt, gravel oi surfaced................. Slate........... .............. Wood shingles............ __ . __ . -- - Balsa...................................... Balsa...................................... Balsa...................................... 20.0 . 90 8.8 90 7:8 90 California redwood, 0 moisture.......................... Cypress.................... ......... Douglas fir, 0 % moisture . 28.0 28.7 34.0 75 86 75 Eastern hemlock, 0 9 moisture.......................... . 30.0 75 -' 6.0 65 - -- 6.5 1.33 10. OC -- 0.58 0.38 0.33 0.70 0.67 0.67 -- 1.28 __ -- -- __ -- 0.76 moisture...... -- Mahogany...... ....... Hard maple, 0 % moisture Maple......................... . Maple, across grain.. 1 Red cypress, 0 % moisture Red oak, 0 % moisture .. 40. 34.2 48J 44.C 40.' 32.' 32. ) 48. ) 75 0.86 86 0.9i -- 75 1.0c 86 1.10 -- 75 1.2* -- 75 0.7 -- 75 0.7 -- 75 1.1 moisture......................... 36. ) Soft elm, 0 % moisture .. 34. ) 75 75 0.9 -- 0.8!3 -- 0.42 (4) - 1.35 (4) - 1.67 (4) 0.60 - (4) 0.30 -- 0.11 (4) 0.13 r. - -- '(2) - 0.40 (4) 1.18 0.54 0.61 0.60 0.74 0.18 0.17 - (3) -- (}) -- (1) _ 0) -- (1) -- (1) - (1) - 0.93 (3) - -0.17 (3) __ 0.15 (3) -- . 0.15 (3) 0.75 0.10 -- 1.72 2.63 3.03 1.43 1.49 1.49 1,32 1.16 1.11 0.95 0.81 0.83 1.35 1.27 0.85 1.10 1.14 __ -- 0.78 -- -- -- -- -- -- - -- -- -- -- --` -- -- -- -- (2) (1) (1) (1) (4) (1) (4) (4) (1) (4) (1) (3) (4) (4) (4) ill (4) See footnotes on first page of Table 2.