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Article: Keeping on Top of It.(coal tar roofing)(Brief Article)
- Article from:
- Buildings
- Article date:
- August 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 Stamats Communications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Coal tar built-up roof maintenance and repair
Coal tar built-up roofing has proven superior performance for more than 140 years. However, any material exposed to environmental and human abuse will need attention from time to time. Therefore, be aware of the most commonly encountered maintenance requirements of a coal tar membrane system. Be sure to first determine the type of roof system -- coal tar or asphalt -- you have (see "Coal Tar vs. Asphalt" below).
Compatibility
When using asphalts and coal tars in conjunction with each other, you should note that the two systems' chemical compositions are sufficiently different and will not mix. ...