Document zd5z8geoGjvGw7ENwBqMr2xZ0

Insulation The Zonolite Company General Offices: 5905 Second Blvd., Detroit, Mich. Plant: Libby, Montana ZONOLITE INSULATION FOR HOMES Zonolite is a micaceous, non-metallic mineral insulation (aluminum magnesium silicate) expanded many times through a special process by the application of intense heat. It insulates both by its multiple dead-air cell construction and by its bright reflective surfaces. Zonolite offers "three-way" heat control, for it is an efficient, permanent barrier to the passage of heat by conduction, convection or radiation. * The density of Zonolite is uniform, tamper-proof. Its insulating value is the same in the walls or on the ceiling as when it left the factory. Zonolite cannot be "fluffed" or stretched when being installed: it flows evenly, filling every nook and cor ner with a "tailor-made" insulation of high efficiency. An Efficient Heat Barrier Believing that the efficiency of any home insulation must be determined under con ditions of actual use, with such factors as type of building construction, radiant heat travel, wind movement and the uniformity of insulation density taken into consider ation, The Zonolite Company is helping to pioneer the " U" factor (overall coefficient of transmission) as the only satisfactory, accurate standard of insulation value. One such " U" factor test, made at the College of the City of New York, showed that Zonolite, installed in a standard wall section, reduced the heat loss through that section by 73.1 per cent. Another signifi cant test was made in Detroit. "Twin" houses, identical in every important particular, were erected: one was left uninsulated, the other insulated with Zonolite. Accurate records through the winter of 1935-36 proved that Zonolite reduced fuel bills 38 per cent . . . held temperature fluctuation within 2 deg as contrasted with a fluctuation of as much as 18 deg in the uninsulated house.' Zonolite Meets Every Insulation Requirement Zonolite Insulation is ALL-MINERAL --ROTPROOF and FIREPROOF; VERMIN-PROOF--rats, mice, termites or insect larvae will not eat it or nest in it; SOUND ABSORBING--tests by V. O. Knudsen, acoustical authority, show Zono lite to be high in sound absorption and sound insulation; LIGHT IN WEIGHT --approximately 6 lb per cubic foot; DIELECTRIC--a test by J. C. Peebles, Armour Institute of Technology, showed that 20,800 volts were required to puncture a one-inch layer of Zonolite between oneinch brass balls; SAFE TO HANDLE --no danger of silicosis, lead poisoning, sores or boils; CHEMICALLY INERT' --tests of every description prove Zonolite will not deteriorate in any way or affect any material with which it comes in con tact; ODORLESS--will not absorb or give off odors under any conditions. Zonolite forms a THICK insulation; is approved by leading air conditioning firms for use with their units. Economical to Install Zonolite is easily installed in attics and walls by blowing or pouring directly from the bag. Whichever method is used, Zonolite fills completely, with an un changing, uniform density. Your local Zonolite representative will furnish ac curate estimates of installation costs. Zonolite is packed in 3% and 4 cu ft bags. One 4 cu ft bag will cover 17% sq ft, 3 in. deep; a 3% cu ft bag will cover 14% sq ft, 3 in. deep. 1018 The Zonolite Company Insulation ZONOLITE-ASPHALT ROOF BLOCK Both a durable roofing, weatherproof throughout its thickness, and an efficient insulation. (Thermal conductivity: 0.38 for the minimum applied thickness of 1% in.). Not penetrated or affected by hot moppings; insulating value is the same in application as in laboratory. Elastic will take up expansion, contraction, or uneveness in the roof deck without cracking or forcing out the asphalt between the blocks. Economical to Apply. Three plies of roofing felt are usually ample for any job. No special precautions, either before or during application, are necessary to protect the insulation from the weather. Rotproof, waterproof, vermin-proof and highly fire resistant, Zonolite-Asphalt Roof Block is an ideal insulator for all types of roof decks. It is available in 12 in. x24in. blocks of any desired thickness from 1% in. up. ZONOLITE AIR DUCTS (Patented) Sound Absorbing and Insulated Entirely new in both concept and design, Zonolite Air Ducts are formed of heavy, specially-designed wire mesh. Directly to this mesh is applied Zonolite Insulating Cement--a thermal and sound insulator of great efficiency. No inside lining is necessary. The result is a duct which prevents condensation, minimizes drag, and absorbs sound at the rate of 1.5 decibels per foot of duct. (Duct size: 9% in. x 11% in.). Zonolite Air Ducts (Patented) permit increased air velocity with no increase in noise, thereby allowing the use of a smaller duct to carry a specified volume of air. They are absolutely vermin-proof, rotproof, and fireproof, inside and out. Will withstand excessive vibration and high air pressures. Made exclusively by local sheet metal shops licensed by The Zonolite Company. ZONOLITE ACOUSTICAL PLASTER A carefully prepared mixture using Zonolite, the all-mineral sound and heat insulation, as a base. Can be applied on either old or new walls, at a cost which is extremely low for an efficient acoustical material. Extremely light in weight, easy Zonolite Acoustical and Insulating Plasters used in beautiful now Gesu Chapel, Detroit to work and apply. It has proved its ability to correct the acoustics of the most difficult rooms, and to provide a high measure of thermal insulation at the same time. Its color, when dry, is an attractive golden tan. May be tinted to harmonize with any decorative scheme. ZONOLITE INSULATING PLASTER Insulates and Plasters in one Job An all-mineral plaster, extremely light in weight and uniform. Insulates ef fectively against passage of heat and transmission of sound. Fire resistant, easy to handle and spread. The elastic nature of the Zonolite ingredient permits expansion and contraction after appli cation, thus adding permanence and strain resistance to the plaster, and reducing cracking. By applying Zonolite Insu lating Plaster as brown and scratch coats over any plaster base, an unusually fine foundation for finish coats is provided. ZONOLITE INSULATING CEMENT A 100 per cent mineral product, Zonolite Insulating Cement is ideal for insulating tanks, boilers, etc., where the insulation must stand temperatures up to approxi mately 1000 deg. Its base is Zonolite, which accounts for its light weight and unusual efficiency. Has pronounced sound absorbing qualities as well as high thermal insulating properties. Zonolite Insulating Cement adheres well to any clean metal, concrete or tile surface. Can be reclaimed simply by adding water. Special cements are also available for industrial furnaces and other applications where temperatures run higher than 1000 deg. Write for Full Details, Specifications and Name of Local Representative