Document 7R547x3pDMZrJ76KOqa4v3aqB

.178 CHAPTER 9 1958 Guide ^ Table 4. Conductivities (k), Conductances (C) and Resistances (R) op Building and Insulating Materials (Continued) (Design Values)* Description INSULATING MATERIALS Board Board and Slabs ROOF INSULATION MASONRY MATERIALS Concretes Glass fiber......................................................................... Wood or cane fiber Acoustical tile j........................................................Yiin* Acoustical tilef....................................................... 44in. Interior finish (plank, tile, lath).................... Interior finish (plank, tile, lath)......................V4in. Roof deck slab Approx...................................................................... 1Hin. Approx..........................................................................2in. Approx............................ 3 in. Sheathing (impreg. or coated)................^. Sheathing (impreg. or coated)..........................Hin. Sheathing (impreg. or coated)...............*44* in. Cellular glass............................. ............. Corkboard (without added binder). Hog hair (with asphalt binder). Plastic (foamed).................................................. ...... Wood shredded (cemented in preformed slabs). Macerated paper or pulp products.. Mineral wool (glass, slag, or rock). Sawdust or shavings.......................... Vermiculite (expanded). Wood fiber: redwood, hemlock, or fir. All types* Preformed, for use above deck. Approx.................................................................. 44 in. Approx.......................................................'......... 1 in. Approx................................................................ 1)4 in. Approx....................................................................2 in. Approx.............................................................. 2Yt in. Approx....................................................................3 in. Cement mortar..... ........................................................ Gypsum-fiber concrete 87)4% gypsum, 12)4% wood chips Lightweight aggregates including expanded shale, clay or slate; expanded slags; cinders; pumice; perlite; vermiculite; also cellular concretes MASONRY UNITS Sand and gravel or stone aggregate (oven dried). Sand and gravel or stone aggregate (not dried).. Stucco................................................................................ Brick, common............................................................... Brick, face....................................................................... Clay tile, hollow: 1 cell deep.......................................................... 3 jn. 1 cell deep.......................................................... 4 in. 2 cells deep.............................................................. 6in. 2 cells deep.............................................................. 8in. 2 cells deep.............................................................. 10in 3 cells deep...............................................................12in. Concrete blocks, three oval core: Sand & gravel aggregate.............................. 4 in. .............................. 8 in, .............................. 12 in. Cinder aggregate.............................................. 3 in .............................................. 4 in. ........................................ 12 in. Gypsum partition tile: 3 x 12 x 30 in. solid.. 3 x 12 x 30 in. 4-cell. 4 x 12 x 30 in. 3-cell. Heat Transmission Coefficients of'Building' Materials 179 Table 4. Conductivities (i), Conductances (C):and Resistances (R) of Building and Insulating . Materials (Concluded) (Design Values)* Material Description Conductivity or Resistance Conductance m Density (Lb,per Cd Ft) <i> JS A . Js oc-.r2? b> .2 T3 <C) ' -ja feH a i.s PL| fa G) .(& m iii MASONRY . UNITS (Continued)' Lightweight aggregate (expanded 3 in. . shale, clay, slate or slag; pumice).... 4 in. " 8 in. 12 in. METALS (See Chapter 5, Table 1) PLASTERING MATERIALS Cement plaster, sand aggregate.................. Sand aggregate.............................................. )4 in. Sand aggregate.............................................. 44 in. Gypsum plaster: Lightweight aggregate............................. H in. Lightweight aggregate................................. 44 in. Lightweight agg. on metal lath.............. 44 in. Perlite aggregate.................... .................... Sand aggregate................................................ Sand aggregate............................................... H in. Sand aggregate.............................................. 44 in. Sand aggregate on metal lath.................. Sand aggregate on wood lath.................... Vermiculate aggregate.................................. ROOFING Asbestos-cement fthinglaq................................ Asphalt roll roofing.......................................... Armhnlt fthinffl.es.... Built-up roofing................................................ 44 in. Slate................................................................... Sheet metal...................... _ .... Wood shinnies SIDING materials (On Flat Sur- Wood, 15-in. 7)4-in. exposure........ ........... Wood, double, 16-in.. 12-in. exposure... Wood, plus insul. backer board.............. ff# in. WOODS Siding Asbestos-cement. )4 in., lapped.............. Asphalt Roll Siding...................................... Asphalt Insulating Siding (V4 in. bd.).. Wood, Drop, 1x8 in.............................. Wood, Bevel; )4 x 8 in:, lapped.............. Wood, Bevel, 44 x 10 in., lapped............. Wood, Plywood, % in., lapped................ Structural glass.................................................. Maple,- oak, and similar hardwoods........... *ir, pine, and similar softwoods.................. 116 -- -- 45 45 45 105 105 105 -- __ 45 120 70 70 70 __ __ -- __ -- -- -- __ --_ ; __ -- ;_ 45 32 12.50 0.79 0.67 0.50 0.44 0.08 1.27 1.50 2.00 2.27 5.0 -- -- -- -- -- 1.5 5.6 -- -- __ __ 1.7 __ _. __ -- __ 400+ -- __ 10.00 6.66 0.20 -- __ 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 -- -- -- 0.67 0.18 __ __ __ __ 0.59 _ __ __ -- __ Negl _ 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 6.94 _ _1.15 _-- 0.84 0.87 1.19 " 0.71 -- 1.40 4.76 __ 0.21 __ 6.50 __ 0.15 _ _-- 0.69 __ 1.45 1.27 0.79 -__. 1:23 __ 0,81 -- 0.95 1 __ 1.05 __ - 1.59 __ 0.59 10.00 0.10 1.10 0.80 ' -- 0.91 1.25 -- nical AclvbwrW^1Ve VJMues for dry materials at 75 F mean temperature, selected by the A.S.H.A.E. Tech- terials of bbil? on Insulation. They are intended as design (not specification) values for ma- the vain* construction in normal use: For conductivity of a particular product,' the user'may obtain b J"PPllei? by. the manufacturer or secure the results of unbiased .tests, teriala (t =FT^LTesi^1t**lce values shown here are for spaces faced both sides with ordinary non-refiecine ma- 20 dee tcmrui_i,an j-g~ 0-82) and are based on following conditions: Winter--50 F mean temperature and for horizonini'!' re difference, Summer--90 F mean temperature and 10 deg temperature difference except e SnrfjwvA rJ~TJ3Pace with heat flow downward which is based on 20 deg temperature difference. d Se* i va*ues shown here are for ordinary non-reflective materials ( -- 0.00). ' lMludS,ISUU` ^85atel'`*ls' Board- flective or '*in? aQd facing if any. In cases where the insulation forms a boundary (highly re air space for th*86' * a-n air sPace- refer to Table 3, Sections B and C, to obtain the insulating value of the f Insulatine v *?Prpi?at effctive emissivity and temperature conditions of the space. depth of th u? ` acustical tile vary depending on density of the board aind on the type, size and * The V ^r^?ratl0na- An average conductivity k value is 0.42. Factory for Pref Commerce, Simplified Practice Recommendation forr Thermal Conductance tion on the basis y^bove-Deck Roof Insulation, No. R 257-55, recognizes the specification of roof insula- fore, thickness*,, rjk ues shown. Roof insulation is made in thicknesses to meet these values. Thero- P^ttiicCuullar msterml 1C<* different manufacturers may vary depending on the conductivity k value of the ot oven dned-r-conductivity k prior to drying, approximately 1 to 3 years.