| Removing Liquid Applied Roof Coating (and other Roof Questions) [message #356025] |
Tue, 23 June 2020 12:21  |
Wackster
Messages: 49
Registered: November 2017
Location: Baltimore
Karma:
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I'm getting my materials together for a total roof re-hab, including replacing and resetting vents, removal and resealing the roof to sidewall seam covers, etc. PO did a fairly neat job of applying a liquid elastomeric coating to the roof. But now that coating is 20+ years old, cracking in places and a grubby gray color. It is about 1/8"thick and very tough to scrape, even after applying heat with my Milwaukee heat gun. A wire cup brush on a 4" mini-grinder made a lot of heat and polished the coating surface, but did not cut into it without applying a lot of pressure. Looks like I have two ways to go: 1. Clean and then solvent wipe the existing surface and apply more goo (liquid EPDM?) anywhere the existing coating has failed, or 2. remove the coating down to metal and then prime/paint with an automotive paint system (my preference). Has anyone done this? Is there a chemical stripper specific to liquid applied EPDM? Are there better options? Thank you in advance for any thoughts on this matter.
Jim Wack - 1976 23' Crestmont
Baltimore, Maryland
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