Specifiers should discuss with the coating

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A new topcoat formulated with the correct tint base and pigments. However, a financial remedy was harder to achieve—the scope and liability of local supply shops are not typically addressed by specifications, contract documents, or project insurance coverage.

manufacturer the UV stability of particular colors, and how to specify the proper tint base and pigments to achieve a durable finish.

The opinions expressed in Failures are based on the author’s experiences and do not necessarily reflect those of the CSI or The Construction Specifier.

David H. Nicastro, PE, F.ASTM, started the Failures column for The Construction rcs data Specifier in January 1994. He is the founder of Building Diagnostics Inc., specializing in the investigation of problems with existing buildings, designing remedies for those problems, and resolving disputes arising from them. He is a licensed professional engineer, and leads the research being performed at Building Diagnostics’ testing center, The Durability Lab, at The University of Texas at Austin.