How can PVC roof tiles be treated to achieve a second-level fire resistance rating?
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The old factory uses PVC tiles; it is planned to convert it into a Class A chemical workshop. What kind of fireproof coating should be used for painting or spraying, and how can applying such coating achieve a second-level fire resistance rating?
It seems there is no good solution; fireproof coatings struggle to adhere to tile surfaces, and the cost of such coatings is also high. It’s better to replace them all with colored steel tiles.