Document gaqM1vQw88z3e5jj7pvnb7879

Insulating Materials Wood Conversion Company General Office and Factory at Cloquet, Minnesota District Sales Offices: Chicago, III., 1320 London Guarantee Bldg. Detroit, Mich., 503 Stephenson Bldg. New York, N.Y., 101 Park Avenue St. Paul, Minn., 1955 University Avenue . Manufacturers of Balsam-Wool House Insulation Sound Absorbent Steel Car Insulation Refrigerator Car Insulation Section of BALSAM-WOOL Insulation Showing wood fibres're-arranged.into a fleecy substance, matted together in blanket form, packed, without stitch ing, between two coverings of tough kraft paper lined with waterproof films of asphalt coating. Balsam-Wool is a fire resisting, rot and vermin proof insulation. Balsam-Wool comes in three widths, 17, 25 and 33 in., wrapped in rolls. These widths are available in both and 1 in. thicknesses. The latter thickness is recommended for roof and ceiling insulation. Half-inch BalsamWool weighs 200 lbs. per 1,000 sq. ft. Details of Application 8*t s*f* Woet.^ L#Tn PunTcrt' 17 in. Balsam-Wool flanged between studding. 18eAS*r\v&/je I1 3/u.. LAsu #/ro Putsrza ^-------- 38 in. Balsam-Wool outside of sheathing--brick veneer. ShccyShc*thih*-i S/omf <v d < Aastt* S3 in Balsam-Wool on inside face of studding. The illustrations above show the method of placing Balsam-Wool in the walls of a building.' Balsam-Wool acts as a blanket around a house and will hold in the heat and keep out the cold. 548 Wood Conversion Company Insulating Materials Thermal Conductivity^ The following hot plate test by Professor J. C. Peebles gives the thermal conductivity of. Balsam-Wool per square foot, per inch thickness, per degree difference in temperature, per hour, and shows the extremely high insulating value of the material. Material Balsam-Wool Plain Paper Thickness Inches 0.63 Density Lbs. Cu. Ft. 3.62 Conductivity Per Inch Thick Thickness as Tested .229 .364 Radiation Reduction In a building properly insulated with Balsam-Wool, 25 per cent less radiation and boiler capacity, as well as relatively smaller pipe sizes will be required and the saving is usually enough to pay for the cost of the insulation. In computing the heat losses from a building and the radiation required, the following coefficients of wall sections should be used. TYPE OF WALL Frame Wall Stucco on Metal Lath Brick Veneer 8 In. Brick Wall with Furring Strips Ceiling, Lath and Plaster, no Floor Ceiling, Lath and Plaster, Single Floor Roof, Wood Shingles on Sheathing Asphalt Shingles on Sheathing B.t.u. Transmission per Sq. Ft., per Hour, per 1 deg. fahr. Difference in Temperature. Uninsulated Insulated with Yi Inch Balsam-Wool Insulated' with Inch - Balsam-Wool .25 .26 .23 .27 .60 .34 .43 .55 .127 .13 .125 .132 .18 .15 .163 .175 .10 .10 .095 .102 .129 .11 .120 .127 549