Materials for built-up roof coverings, Standard for safety, 12th edition

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Abstract
This standard contains basic requirements covering the following materials used in the construction of built up roof coverings; hot mopping asphalt, asphalt-saturated organic felt, coal-tar pitch, coal-tar saturated organic felt, asphalt-saturated asbestos felt and asphalt-coated glass-fiber mat (felt).

Date
7/1993

Author(s)
Underwriters Laboratories

Page(s)
15

Source
Underwriter's Laboratory

Keyword(s)
built up roofing; material standards; hot asphalt; coal tar pitch; UL 55A; Underwriters Laboratories

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