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t Silvercote Products, Inc. 161 East Erie Street, Chicago, 111. SI LVE It COTE INSULATION Insulation SILVERCOTE INSULATION Silvercote--A reflective insulation de signed to retard the transfer of heat by a combination of heat reflective surfaces and air spaces, is manufactured in three forms to meet various insulation requirements. Silvercote Fabric--A fabric reinforced insulation and vapor barrier consisting of two sheets of Silvercote paper laminated with specially prepared asphaltum and reinforced with an interlining of in. mesh jute fabric imbedded in the lamina tion. The two exposed silver-like surfaces retain their high reflectivity to radiant heat under the most severe conditions encountered in the building construction, air conditioning and refrigeration fields. Silvercote Fabric weighs approximately 100 lb per thousand sq ft ana is available in 500 sq ft rolls in standard widths of 26 in., 36 in., 49 in., and 52 in. Special widths up to 120 in. <an be manufactured for industrial users. Silvercote Duplex--A product similar to Silvercote Fabric except that the re inforcing fabric is omitted. Silvercote Duplex has the same insulating and vapor barrier values as Silvercote Fabric. Silver cote Duplex is available in standard widths of 26 in., 36 in., 49 in., and 52 in. in 500 and 1000 sq ft rolls. Weight: approximately 65 lb per thousand sq ft. Silvercote Simplex--An economical reflective insulation designed for use where a vapor barrier is not called for. Silvercote Simplex is a single sheet of kraft paper coated on both sides with the Silvercote surface. Silvercote Simplex is available in 2000, 1000 and 500 sq ft rolls of 36 in. and 54 in. width. Weight: approximately 30 lb per thousand sq ft. SILVERCOTE--HEAT AND WATER VAPOR BARRIER Insulation Value--The thermal con ductance of Silvercote Fabric dividing a 1 in. vertical air space has been estab lished by laboratory test as 0.23 Btu per hour per sq ft per deg F. The thermal conductance of Silvercote Fabric mounted in the center of a 1J4 in. horizontal air space with heat flow in the upward direc tion is 0.26 Btu per hour per sq ft per degree F. With heat flow in the down ward direction the thermal conductance is 0.16 Btu per hour per sq ft per degree F. The emissivity of Silvercote has been found by test to be 0.17. Copies of test reports on the conductance or emissivity of Silvercote are available upon request. Silvercote Duplex and Silvercote Simplex have the same insulation value as the Fabric. Water Vapor Permeability--Silver cote Fabric and Silvercote Duplex each have a permeability to water vapor trans mission of approximately 0.40 grains per hour per square foot per pound per square inch difference in vapor pressure. This is approximately of the maximum allow able transmission for materials classed as vapor barriers. ENGINEERING SERVICE For complete specifications and engi neering service address Silvercote Pro ducts, Inc., 161 East Erie Street, Chicago 11, Illinois. Silvercote Fabric 86 in. wide applied over inside face of studs 16 in. on center. Excess 4 inch width in two stud spaces permits suitable vapor seal lap and forms sealed air space between Silvercote insulation and interior finish. Wood Conversion Company Dept. 220-8 First National Bank Building NEW YORK St. Paul 1, Minnesota CHICAGO Insulation EFFICIENT INSULATION FOR EVERY NEED For many years a leader in the insulation field, Wood Conversion Company manu factures a complete line of flexible, fiber and rigid insulation for all industrial and domestic purposes. This insulation is the product of scientific research, and is especially designed to embody the most desirable qualities for every use. Backed by the name of Weyerhaeuser, Wood Con version Company insulation assures high efficiency and long, satisfactory service: Balsam-Wool Sealed Blanket Insu lation--A building insulation that is com pletely armored against the three major insulation enemies--wind, vibration and moisture. The Balsam-Wool mat is com pletely enclosed in tough waterproof liners which surround all four sides, with spacer flanges which assure positive application. Balsam-Wool will not settle or pack down within walls--is fire retardant and verminproofed. K-25 Fiber--A clean, new wood fiber insulation with an amazingly low K factor. Shipped in compact bales, K-25 is easily processed on the job to create a lastingly effective insulation and is ideal for use in locker plants, cold storage plants, walk-in coolers, etc. K-25 Fiber Pneumatic System--The modern, high-speed, automatic way to insulate domestic refrigerator cabinets and doors. Fluffed to proper low density in the manufacturer's plant, K-25 is blown into cabinets and doors under high pressure, forming a tightly felted insulating mat without joints, laminations or voids. Tufflex--A soft, felted blanket material made from fleecy wood fiber, combines high insulating efficiency with toughness and exceptional resistance to heavy impact blows. Tufflex is light in weight and non abrasive--will not tear or pull apart even when cut into narrow strips. Tufflex is available in rolls or sheets of various thicknesses and widths. NU-WOOD STRUCTURAL INSULATION Nu-Wood Interior Finish--A multi ple-purpose wood fiber material available in tile, plank and board. Nu-Wood insu lates, decorates and quiets noise. NuWood's colors are soft and harmonious-- will not fade. The Nu-Wood interior finish line includes Sta-lite, an insulating interior finish with more than 70 per cent light reflection. Nu-Wood Insulating Lath--Used as a plaster base, assures strong, smooth, true walls and ceilings, free from cracks. Nu-Wood Roof Insulation--Will fill all requirements of Federal specification LLL-N-321A. Furnished in any practical thickness. M >47-7160 1269