Document YDvmy56DMq3aw3EpmDX4ogx6n

Insulation Alfol Insulation Company Incorporated 155 East 44th St. New. York, N. Y. Agents in Principal Cities INSULATION for INSULATION for Fans Turbines Blowers Dehumidifiers Pumps Air Conditioners Ducts Boilers, Pipes, etc. Houses, Buildings, etc. At temperatures up to 1250 F. ALFOL PAT. IN 34 COUNTRIES Refrigerators Refrigerator Cars Refrigerator Trucks Refrigerator Boxes Refrigerated Rooms etc. Ships Ovens Ranges Tanks Stills Alfol consists of single or multiple sheets of pol ished pure aluminum foil installed between wall studs, furring strips, ceiling joists or roof rafters. When heat tends to flow through such insulated structures, 95 per cent of radiant heat is reflected back toward its source. In summer, stifling outdoor heat is driven off. In winter, practically all sup plied heat is retained in the house where it is needed. The reflection of heat is a revolutionary principle in insulation engineering which has won wide spread recognition and acceptance by engineers and scientists throughout the world. Alfol is now extensively used by many of the largest manufac turing and industrial plants, U. S. Navy, and others, as well as in houses and buildings of every kind and size. Alfol will save up to 75 per cent or 80 per cent of the heat loss that would occur through an uninsulated house. It consequently costs less to heat an Alfol insulated home. Many owners report over one-third saving in fuel costs. Alfol is installed only by Authorized Applica tors. All work is done in strict accordance with Alfol Standard Speci fications. Alfol Insulation Company, Inc. Insulation Data on Heat Savings Effected by Alfol Construction Wood Stud Wall--4-in. studs....................................... 8-in. Brick Wall--Furred............................................... Open Attic Floor.............................................................. Wood Shingle Roof (no lath and plaster)................ Concrete Roof--6-in.- slab--suspended ceiling.... Slate. Tile or Composition Shingle Roof (no lath and plaster)................................................... Heat Transmission Btu/Hour/Sq Ft/F Not Insulated 0.25 .30 .62 .46 .35 .56 1 layer ALFOL o.n .12 .13 .13 .13 .15 2 layer ALFOL 0.09 .09 .10 .09 .10 .11 Heat Transfer * Stopped ... % 1 layer ALFOL 56% 60 79 72 63 73 AlJoL 64% 70 84 81 72 81 These Coefficients have been determined in accordance with the method employed in The A.S.H.V.E. Guide, and are based on new insulating value of aluminum foil tabulated in National Bureau of Standards Letter Circular No. 465, June 4, 1936, which contains the latest available data on the insulating value of aluminum foil. ALFOL ADVANTAGES UNAFFECTED BY DAMPNESS Alfol is non-porous, has no capillarity, cannot absorb moisture. Moisture infiltration in nonmetallic insulations increases conductivity frequently as much as 50 per cent. Such variations cannot occur in Alfol. INSULATING EFFECT Transmittance coefficients (see table above) are determined from tests made on actual wall sections insulated with Alfol. They accurately measure Alfol's insulating effect including the heat loss through and around studs, joists, rafters, etc. Where published coefficients of materials are based on 12-in. by 12-in. panel tests . . . materials preheated, in "bone dry" condition and at specified densities . . . they do not include the heat loss at studs, nor the effect of moisture infiltration, variation in density, thickness, etc. Many noted authorities on heat transfer recognize that the performance of Alfol in actual use is difficult to surpass. FIREPROOF, CLEAN, AND SANITARY Negligible heat-storage capacity. Alfol preheats or cools in approximately one-fourth the time re quired for other insulations. Being metal, Alfol is clean. It repels vermin; prevents bacterial growth. Alfol metal-jacketed pipe lines Trained mechanics unreel sheets of Alfol 09 needed. These compact rolls cause no dust, dirt or tcaste. This Alfd-insulaied ceding is equiva lent in insulating effect to a solid concrete ceiling dab 8 ft thick. Aluminum Foil Does.Not Tarnish 1022