Parker's Smith Coating Solution Zinc Runoff from Galvanized Roofing
Problem: Non-Compliant Zinc Run-off from Galvanized Roof
25,000 sq. ft. galvanized zinc roof with 3/12 pitch exhibited an unacceptable amount of zinc oxide in the run-off and various locations on site. The state of Oregon performed testing and determined there were unacceptable levels of zinc. They mandated that the asset owner mitigate the condition
or replace the roof.
Solution: Parker Smith's Metal Roof Painting System
Prepare and coat the roof with a two-coat system by Induron Protective Coatings to mitigate the run-off via encapsulation.
Dry abrasive blasting is the best way to prepare a non-ferrous surface to accept coatings.
High Solid epoxy mastics promote adhesion as well as providing barrier corrosion protection.
Aliphatic polyurethanes achieve color and gloss retention for exterior exposures. According to ISO 12944, this system’s preparation level supplies a service life of 15 to 20 years.
The asset owner is now in compliance with state and federal regulations without the need to remove the existing roof or shut down operations in any way during the project preparation and coating application.