Document 3QLJOxOMxjxNkbMZqw3RjX3L0

Insulation Reflective American Flange & Manufacturing Co. Inc. 30 Rockefeller Plaza, New York 20, N. Y. Plaza 7-2200 Terroiherm Ret. U. S. Pat. Off. STEEL INSULATION FULLY PROTECTED BY U. S. AND FOREIGN PATENTS ISSUED AND PENDING Assures Rapid Pull Down of Temperature The low heat storage capacity of FerroTherm is extremely important in achiev ing rapid pull down of temperature, and in saving refrigeration costs for the initial and each subsequent cooling of space. Specifically, the heat storage capacity of a single sheet of No. 38 gauge is 0.029 Btu per (hr) (sq ft) (F tempera ture difference). This is approximately 1/16 of the heat storage capacity of 1 sq ft of 1 in. thickness corkboard. Permanent, Fire-Proof Insulation Ferro- Therm installed in a cold storatt room Ferro-Therm Steel Insulation, ma.de from rigid steel sheets with asp'ecial alloy coating, reflects 90 per cent to 95 per cent of all radiant heat'. This high reflec tivity, combined with extremely low heat storage capacity, provides maximum insulating efficiency in a minimum over all thickness. Saves Pay Space and Weight In cold storage construction, the number of sheets of Ferro-Therm depends on the temperature to be maintained and the.U value required. The k value of FerroTherm, based on tests, is listed in the Data Book of the American Society of Refrigerating Engineers as 0.226 Btu per (hr) (sq ft) (F temperature difference). Laboratory tests ana thousands of appli cations have demonstrated that a wall of Ferro-Therm will provide insulating effi ciency equivalent to a wall of mass insulation approximately twice as thick. Ferro-Therm construction eliminates trapping of moisture condensate, with subsequent deterioration of the construc tion. As it is all-metal, Ferro-Therm cannot be penetrated by rodents, vermin or termites, and is absolutely non-com bustible. The value of Ferro-Therm for fire protection'is apparent. 125? Below Zero Maintained in . Altitude Test Chambers 'm-a Ferro-SEherm has proved its superiority in buildings, cold storage rooms, refriger ated cabinets, locker rooms, dry ice con tainers, refrigerated railway car con struction, ovens, high-temperature storage tanks--in fact, practically every type of application where high insulating efficiency with economies in space and weight are a requisite. The most nota ble demonstration of Ferro-Therm per formance has been its selection for the insulation of altitude chambers for the testing of Army and Navy aviation equipment and personnel. In' these chambers, temperatures as low as -- 125F were maintained, with a tem perature drop of +70F to r-70F in 10 to 12 min. -1442 Insulation Infra Insulation, Inc. 10 Murray Street, New York 7, N. Y. Telephone: COrtlandt 7-3S33 THERMAL FACTORS OF INFRA INSULATION AND DRY ROCKWOOL EQUIVALENTS Down-Heat C.044 R 2272 Up-Heat C.080 R 12.5 Wall-Heat C.073 R 13.69 7$* Rockwool 4* Rockwool Rockwool Type 4 Jr., in ONE-INCH Space C.097 R 10.30 = 3!' Rockwool C.I94 R 5.15 = If' Rockwool C.150 R 6.66 -- Rockwool Infra Insulation, Type 6, is a tough 3-aluminum-sheet insulation, with 6 heat-rayreflective surfaces, plus two outer reflective spaces, and four rows of inner, alternat ing, reverse triangular air spaces. (Total, 6 reflective spaces.) It is easily and quickly installed between wood joists, furring strips, and between steel trusses, metal beams, and girders. The normal installation rate between wood joists is 2,000 sq ft a day. The If cu ft carton contains 500 sq ft, weighs 40 lbs. Standard width, for 12 in., 16 in. and 24 in. centers; standard Type 4, for 12 in., 16 in., 24 in. centers. Heat flow through wall space, which is air, is 5 per cent to 7 per cent by Conduction; 15 per cent to 28 per cent by Convection; and by Radiation, 65 per cent to 80 per cent. ABSORPTION and RADIATION:--Each of Infra's 6 aluminum surfaces THROWS BACK 97 per cent of the heat rays which strike it. As emittive surfaces, they emit ONLY 3 per cent of heat actually absorbed by conduction, convection and radiation. Practically all building materials, including ordinary insulations, absorb and emit 90 per cent of heat rays, against Infra's 3 per cent.. CONDUCTION:--One sq ft of Type 6 Infra weighs only If oz, has only If cuin. mass. The ratio is 1 of Infra mass to 431 of low conductive air. Ordinary insulation, when dry, has a ratio of 1 of mass to 23 of air. CONVECTION and VAPOR:--Each of the 3 tough aluminum sheets of Infra has ZERO permeability to all gases, including heated air, cold air, and water vapor. NON-CONDENSATION-FORMING:--The 3 aluminum sheets together with TWO inner accordion separators, which permanently prevent metal to metal contact, form FOUR inner rows of alternating, reverse, triangular,' reflective air pockets. The construction, and the lack of weight for heat exchange,' make Infra Insulation abso lutely non-condensation forming. Neither can it absorb nor store moisture. Infra Insulation uses 99.5 per cent pure .0008 in. and ..0015 in. aluminum, made in accordance with special Infra emissivity requirements. It has 15 lbs and 28 lbs bursting strength (Mullen test), 500 per cent to 1700 per cent greater than ordinary foils. The tearing strength is 20 grams and 64 grams (Elmendorf test). The special fiber separators are permanently flame-proof, mold-proof, and vermin-proof. FIRE STOP:--Since Infra emits practically no heat rays, and since aluminum's melting point is 1250 F, it is an efficient fire-stop. SANITARY:--Infra is sanitary, inhospitable to vermin, and DOES NOT RETAIN odors. Mechanics like to work with Infra. It is CLEAN, free of DUST or lint, with permanent freedom from floating particles. /n/ra Intulation Type 6 INFRA, TYPE 4 JR. is half () inch in depth. Can be used in 1 in. spaces, between furring strips; in brick or masonry walls; around metal ducts; and under floors, ordinary or radiant heated. Write for new 44-page authoritative manual, "Simplified Physics of Vapor and Thermal Insulation." 1443