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Normas ASTM – AENOR
ASTM D4479-07

ASTM D4479-07

Standard Specification for Asphalt Roof Coatings—Asbestos-Free

Fecha:
2012-06-26 /Historical
Superseeded by:
Abstract:

This specification covers the properties and requirements for two types of asbestos-free asphalt roof coatings consisting of an asphalt base, volatile petroleum solvents, and mineral or other stabilizers, or both, mixed to a smooth, uniform consistency suitable for application by squeegee, three-knot brush, paint brush, roller, or by spraying. Type I is made from asphalts characterized as self-healing, adhesive, and ductile, while Type II is made from asphalts characterized by high softening point and relatively low ductility. The coatings shall conform to specified composition limits for water, nonvolatile matter, minerals and/or other stabilizers, and bitumen (asphalt). They shall also meet physical requirements as to uniformity, consistency, and pliability and behavior at given temperatures.

Scope:

1.1 This specification covers asbestos-free asphalt roof coatings of brushing or spraying consistency.

1.2 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords:
asbestos-free; asphalt; fibered; roof coating
45,82
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