Coating on duct boots?
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06-09-20, 09:36 PM
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Coating on duct boots?
Hello there. I am curious why my duct boots look like this in my new home: https://imgur.com/a/fXiiSVZ
What is the purpose of this black coating?
Hello there. I am curious why my duct boots look like this in my new home: https://imgur.com/a/fXiiSVZ
What is the purpose of this black coating?
