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Show Machine-Made Weather Assures Better Roofing The wind tunnel in the aviation industry may be better known, but it is no more vital to continuing product improvement improve-ment than the Weather-Ometer is to scientists in laboratories who constantly are testing roofing. . Man-made weather now is helping scientists determine the 9 effect of heat, cold, light, and" water on asphalt roofing. Compressing Com-pressing into 40 days the full effect ef-fect of a year of weathering, the Weather-Ometer produces accelerated accele-rated break down of roofing products, prod-ucts, and reveals the result for study by research technicians. By producing in days the effect of years of actual exposure on roofs, "artificial weather" permits continuous checks on materials and methods, and leads to product improvement. The Weather-Ometer is one of several research projects carried on by the manufacturers of asphalt as-phalt roofing. The industry, which last year produced 90 percent of all rofing material used in the United States, recently appointed a technical director to expand the continuing search for product improvement. TECHNICIAN studies sample of asphalt shingles which has been exposed to artificial weather. |