Document n9X9wXb8DdNgJyVQd7oRMB476

loo CHAPTER 9 1959 Guide Table 4 .... Conductivities (Jr), Conductances (C), and Resistances (R) of Building and Insulating Materials (Continued) (Design Vafaes)* Deadly (Lb per Co Ft) Kes'ifance ( G) G) Board and Slabs ROOF INSULATION MASONRY MATERIALS CONCBJTES MASONRY UNITS Glass fiber................................................................................ Wood or cane fiber Acoustical tile*...............................................................K Acoustical tileG........................................................ :.-H Interior finish (plank, tile, lath)................................. Interior finish (plank, tile, lath)............................. K Roof deck slab Approx............................................................................. IK Approx.......... Approx......... Sheathing (impreg or coated).................................... Sheathing (impreg or coated).....................................K in. Sheathing (impreg or coated)................................ *Kj in. 15.0 15.0 20.0 20.0 20.0 Cellular glass................................................................... Corkboard (without added binder)........................ Hog hair (with asphalt binder)................................ Plastic (foamed)............................................................. Wood shredded (cemented in preformed slabs).. 9.0 6.5-8.0 8.5 1.62 22.0 0.40 0.27 0.33 0.29 0.55 Macerated paper or pulp products Mineral wool (glass, slag, or rock) Sawdust or shavings.................................. Vermiculite (expanded)............................. Wood fiber: redwood, hemlock, or fir.. 2.5-3.5 2.0-6.0 8-0-15.0 7.0 2.0-3.5 All types* Preformed, for use above deck Approx.............................................................................. in. Approx........................................................................................ 1in. Approx....................................................................................IKin. Approx....................................................................................... 2in. Approx................................................................................... 2Kin. Approx.................................................... ..,...................3 in. 0.28 0.30 0.45 0.48 0.30 Cement mortar......................................... Gypsum-fiber concrete 87K% gypsum, 12J Lightweight aggregates including expanded' shale, clay or slate; expanded slags; cinders; pumice; perlite vermiculite; also cellular concretes Sand and gravel or stone aggregate (oven dried). Sand and gravel or stone aggregate (not dried)... Stucco.................................................................................... 116 51 120 100 40 30 20 140 140 116 5.2 3.6 2.5 1.7 1.15 0.90 0.70 9.0 12.0 6.0 Brick, common....................................................................... Brick, face................................................................................ Clay tile, hollow: 1 cell deep................................................... 3 1 cell deep.......................................................................... 4 2 cells deep........................................................................ 6 2 cells deep........................................................................ 8 2 cells deep.......................................................................10 3 cells deep. ............... 12 Concrete blocks, three oval core: Sand and gravel aggregate..........................................4 ..........................................8 ........................................... 12 Cinder aggregate..............................................................3 ..............................................................4 120 5.0 130 9.0 Gypsum partition tile: 3 x 12 x 30 in. solid.. 3 x 12x30 in. 4-eell.. 4 x 12 x 30 in. 3-cell. 0.84 0.56 0.24 0.18 0.12 0.78 0.49 0.72 0.36 0.24 0.19 0.15 0.12 0.90 0.66 0.54 0.45 0.40 1.40 0.90 0.78 1.16 0.90 0.58 0.53 0.79 0.74 0.60 2.50 3.70 3.00 3.45 1.82 3.57 3.33 2.22 2.08 3.33 0.20 0.60 0.19 0.28 0.40 0.59 0.86 1.11 1.43 o.u 0.08 0.20 0.20 0.11 1.19 1.78 4.17 5.56 8.33 1.32 2.06 1.39 2.78 4.17 5.26 6.67 8.33 0.80 1.11 1.52 1.85 2.22 2.50 0.71 1.11 1.28 0.86 1.11 1.72 1.28 . 1.35 J 1.67 Heal Transmission Coefficients of Building Materials 101 Table 4 .... Conductivities (it), Conductances (C), and Resistances (R) of Building and Insulating Materials [Concluded) (Design Vahesh Material Description Deadly Ub per CuFt) Conductivity oc Conductance <fc> ia tendance w G) G)Per inch thickness for thickness . listed MASONRY UNITS {Continued) Lightweight aggregate (expanded shale, clay, [ 3 in. slate or slag; pumice)...........................................< | j"- (12 in! Stone, lime or sand....................................................................... ni i i 12.50 0.79 0.67 0.50 0.44 0.08 1.27 1.50 2.00 2.27 METALS PLASTERING MATERIALS ROOFING SIDING MATERIALS (On Flat Surface) WOODS (See Chapter 5, Table 1) Cement plaster, sand aggregate............................................... Sand aggregate.............................................................. K n. Sand aggregate.............................................................. K n. Gypsum plaster: Lightweight aggregate................ .............................K in. Lightweight aggregate-- ...................................... K in. Lightweight agg. on metal lath.................-..........-K inPerlite -aggregate....................................................................... Sand aggregate........................................................................... Sand aggregate.............................................................. in. Sand aggregate.............................................................. K in. Sand aggregate on met&l lath..................................% in. Sand aggregate on wood lath................................................ VermicuJate aggregate............................................................. Asbestos-cement shingles............................................................ Asphalt roll roofing....................................................................... Asphalt shingles............................................................................. Built-up roofing.................. ............................................K in. Slate.................................................................................. .. _K in. Sheet metal..................................................................................... Wood shingles................................................................................. Shingles Wood, 16-in. 7K-in. exposure............................................. Wood, double, i6-in., 12-in. exposure................................ Wood, plus insul. backer board.............................in. Siding Asbestos-cement, K in., lapped.......................................... Asphalt roll siding.................................................................... Asphalt insulating siding (K in. bd.)................................ Wood, drop. 1 x 8 in................................................................ Wood, bevel. K x 8 in., lapped............................................ Wood.Jievel, K x 10 in., lapped.......................................... : Wood, plywood, K >n., lapped............................................. Structural glass.............................................................................. Maple, oak, and similar hardwoods....................................... Fir, pine, and similar softwoods.............................................. 116 -- -- 45 45 -- 45 105 105 105 -- -- 45 120 70 70 70 -- -- -- 5.0 -- -- -- -- '-- 1.5 5.6 -- -- -- -- 1.7 -- -- -- -- 400+ -- _ 10.00 6.66 3.12 2.67 2.13 -- -- 11.10 9.10 7.70 2.50 -- 4.76 6.50 2.27 3.00 20-00 -- 1.06 -- -- 1.15 -- -- 0.84 -- -- 0.71 -- -- 4.76 -- -- 6.50 -- -- 0.69 -- -- 1.27 __ __ 1.23 -- -- 0.95 -- -- 1.59 -- -- 10.00 _45 1.10 32 0.80 -- 0.20 -- -- -- -- -- 0.67 0.18 -- -- -- -- 0.59 __ -- -- -- -- Negl -- -- -- -- -- -- -- __ -- -- 0.91 1.25 _ 0.10 0.15 0.32 0.39 0.47 -- -- 0.09 0.11 0.13 0.40 -- 0.21 0.15 0.44 0.33 0.05 0.94 0.87 1.19 1.40 0.21 0.15 1.45 0.79 0.81 1.05 0.59 0.10 * Representative values (or dry material* at 75 F mean temperature, (elected by the ASHAE Technical Advisory Committee on Insulation. They are intended ee deaicn (not specsSealion) values for material* of boildins construction in normal use. For conductivity ot a particular product, the uaer may obtain the value supplied by the manufacturer or secure the result* of ihiMfH tats. Air space resistance values shown here are for speea faced both sides with ordinary nemvjtcetae materials ( -- 0.80 and E * 0.82) and are based on following con ditions: Winter--60 F mean temperature and 20 deg temperature difference, Summer--90 F mean temperature and 10 deg temperature difference except for borbonta) airspace with beet flow downward which b based on 20 deg temperature difference. * Surface resistance value* shown here are for ordinary itemvjfactn* materials ( -- 0.90). ' d See also Insulating Materials, Board. * Includes paper berVing and facing if any. In cases where the insulation forms a boundary (highly reflective or otherwise) of an air space, refer to Table 2, Sections B and C. to obtain the insulating value of the air space for theappropriate effective embsivity and temperature conditions of the spaa. 1 Insulating values of acoustical tile vary depending on density of the board and on the type, site, and depth of the perforations. An average conductivity k value is 0.42. * * The U. 8. Department'of Commerce, Simplified Practice Recommendation for Thermal Conductor*e Factors /or Preformed Atom-Deck Roof Insulation, No. R 257-65, recognize* the specification d roof on the basis of the C value* shown. Roof insulation is made in to meet these values. Therefore, thick, ness supplied by different manufacturers may vary depending on the conductivity k value of the particular material.