SEDL / STP / STP280-EB / STP38453S

Manufacture and Application of Asphalt Roofing

Haack, LC
Certain-teed Products Corp., Paoli, Pa.

Pages: 6    Published: Jan 1960

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Abstract

Asphalt is first mentioned as being used about 3800 B.C. as a waterproofing and preserving medium. The asphaltic materials of early times were natural occurring materials. The asphalt used today is produced almost entirely by the refining of petroleum.