Document qm21OjwNqQ36YzkBrzOXONKDn

1935of andAmerican Society Heating Ventilating Engineers-Guide, Table 2:' Conductivities (k) and Conductances (Ca) of Building Materials and iNSULATORS-^Continued The coefficients are expressed in Btu Per hour per square foot Per degree Fahrenheit Per l in. thickness, unless otherwise indicated. .Material Description - b OM Ea2 mdm Qtd aH 25 ** Is *S Se Eg* sbazo epazo oo m s w .g os a INSULATION--BLANKET OR FLEXIBLE TYPES Chemically treated wood fibers held between layers of strong paper/ ___ .. ,, __ Eel grass between strong paper/___ " " a * "_ Flax fibers between strong papa/ Hair felt between layers of paper/ Kapok between burlap or paper/. ___ 3.624.60 3.40 4.90 11.00 1.00. 70 90 90 90 75 90 0.25 0.26 0.25 0.28 0.25 0.24 4.00 3.85 4.00 3.57 4.00 4.17 INSULATION-SEMI-! RIGID TYPE Flax/ Flax and rye/___ ,, . Felted hair and asbestos/_________ ________ 75% hair and 25% jute/ ..... ...... 50% hair and 50% jute/_ Jute/ Felted jute and asbestos/______________ :__ Compressed peat moss_____ 13.00 11.00 12.10 13.60 7.80 6.30 6.10 6.70 10.00 11.00 90 90 70 90 90 90 90 75 90 70 0.26 0.26 0.30 0.32 0.28 0.27 0.26 0.25 0.37 0.26 3.84 3.84 3.33 3.12 3.57 3.70 3.85 4.00 2.70 3.84 % INSULATION--LOOSE FILL OR BAT TYPE Glass Wool___ Granular... ___ _ Fibrous material made from dolomite and silica Fibrous material made from slap Fibrous material 25 to 30 microns in dia- meter, made from virgin bottle glass___ Made from combined silicate of lima and alumina _ Flaked, dry and fluffy/____ a mm a a mm m Reobanulated Cork_______ About ?6-inu particles......... .................... a a a a tt a a mam mamma Rock wool with a binding agent___ Rock wool with flax, straw pulp, and binder Rock wool with vegetable fibers___ 1.90 75 1.60 75 0.23 0.24 4.35 4.17 1.50 75 9.40 103 0.27 0.27 3.70 3.70 1.50 75 0.27 3.70 4.20 72 30.00 90 24.00 90 18.00 90 12.00. 90 34.00 90 26.00 90 24.00 75 19.80 90 18.00 75 8.10 90 21.00 . 90 . 18.00. 90 14.00 90 10.00 90 14.50 77 14.50 75 11.50 72 86 86 0.24 1.00 0.77 0.59 0.44 0.60 0.52 0.48* 0.35 0.34 0.27* 0.31 0.30 0.29 0.28 6.27* 0.33 0.38 0.31 1.04 0.71 4.17 1.00 1.30 1.69 2.27 1.67 1.92 2.08 r 2.86 2.94 3.70 3.22 - 3.33 . 3.45 3.57 3.70 3.03 2.63 3.22. 0.96 1.41 INSULATION--RIGID Nao adaded binder_____ __... . Asphaltic binder _ .. ___ -......... Made from chemically treated wood fiber__ Made from chemically treated wood and vegetable fibers. 14.00 10.60 7.00 5.40 14,50 20.00 25.00 90 90 90 90 90 70 75 0.30* 0.34 0.30 0.27 0.25 0.32 0.33* 0.36 6.38 3.33 2.94 3.33 3.70 4.00 3.12 3.03 2.78 2.63 For notes See Page 95. 96 (k)Table 2. Conductivities and.Conductances (Ca) of Building Materials and Insulators--^Continued ,,,,fhcicnts are expressed in Bin per hour per square foot Per degree Fahrenheit per Un. thickness. i tie cocji**'**. unless otherwise indicated. Material Description Drnbitt (L b per Cu Ft ) M ean T emp. (D eo Fahr) --> r w Si SB 5ia i5 bazo Dazo oo r|j*. g Esg ia- <sd 3W HS at at insulation--R!GIU --Continued Fiber Made from com stalks....... exploded wood fiber........ hard wood fibers-- Insulating plaster 9/10-in. thick applied to ^_in. plaster board base.-------- ------------- Made firom lnicourice rowouts---- Made from 85% magnesia and 15% asbestos Made from shredded wood and cement------ - -" msuiggwarwcauntehfiubmer_._______________ _____ Sugar cane fiber insulation blocks encased in asphalt membrane Made from wheat straw-................. ..... ........ * " wood fiber,,___________________ 15.00 17.90 15.20 54.00 16.10 19.30 24.20 13.50 13.80 17.00 15.90 15.00 8.50 15.20 16.90 71 78 70 75 81 86 72 70 70 68 72 70 52 72 90 0.33 0.32 0.32 1.07f 0.34 0.51 0.46 0.33 0.30 0.33 0.33 0.33 0.33 0.29 0.33 O'. 34 3.03 3.12. 3.12 0.93 2.94 1.96 2.17 3.03 3.33 3.03 3.03 3.03 3.03 3.45 3.03 2.94 '` (3) (3) building boards Asbestos------------------ Plabteb Boabd... UVUitMCBOCU M-Ufu. ...... _ Corrugated asbestos board___________ . Pressed asbestos mill board----- ---------- . Sheet asbestos-------------------------------- - . Gypsum between layers of heavy paper____. 123.00 20.40 60.50 48.30 62.80 Rigid, gypsum between - layers of heavy paper (K-in. thick)------------------------------. Gypsum mixed with sawdust between layers of heavy paper (0.39-in. thick)__ . 53.50 60.70 <H in.)------------------------------------- (Vi in.)________________ :----------- . 86 110 86 110 70 90 90 -- 2.70 0.48 0.84 0.29 1.41 2.60f 3.60f 3.73f 2.82|* 0.37 2.08 1.19 3.45 0.71 0.38 0.28 0.27 0.35 ROOFING CONSTRUCTION Roornto-------------------------- Asphalt, composition or preparedBuilt up--^$-in. thick___________ surfaced*.-- 3-ply roof coveringTM Asbestos____________ Asphalt....... .......... ...... SlateWood___ . 70.00 75 52^0 _ 65.00 70.00 _ 201.00 -- 76 75 75 6.50f 3i53f* 1.33f 0.58f 6.00t* 6.50f 10.37* t.28t* 0.15 0.28 (3) 0.75 1.72 0.17 0.15 0.10 0.78 ` PLASTERING MATERIALS Plabteb________________ Cement- Gypsum, typical- Thickness % in. Metal Lath and Plabteb___ Total thickness % ia~ Wood Lath and Plabteb____ s^-in. plaster, total thickness % in.-------------- 1 8.00 0.13 (2) 3.30* 0.30 73 8.80f 0.11 (4) 4.40f 0.23 70 2.50f 0.40 (4) BUILDING CONSTRUCTIONS Fbame____ '_________ Floobinq... 1-in. fir sheathing and building paper l-in. fir sheathing, building pape: yellow pine lap siding____________ 1-in. fir sheathing, building paper and Pine lap siding and building paper- 4 in. wide-- Yellow pine lap siding--------Maple--across grain------Battleship linoleum (K-in.).. For notes see Page 96. 30 o . ___ l 20 20 ~16 40.00 - 75 -- 0.71t 1.41 (4) 0.50t 2.00 0.82| * 1.22 (4) (4) 0.85f * 1.28f * 1.20 1.36f 1.18 0.78 0.83 0.74 .......... (4) (T)