Is copper or stainless steel the best for metal flashing applications to accommodate coating?
No! Copper will Bettina and the coating material tends to lose its ability to adhere to it. Stainless steel must be roughed up severely to allow for coating to adhere. (24) Gauge primed galvanized steel is the best as well as manufacturer approved. Q: Once a waterproof coating is installed how often does it need maintenance? A: Maintenance schedules depend on the system put in place and the manufacturer, however, most systems need some type of ongoing maintenance and care to get the most out of it for the longest period of time. For example; a tile or stone application will need a clear sealer applied to it on a regular basis. Annual application to keep the grout watertight is the recommendation. A standard coating system will need a new color coat every (3) to (5) years to maintain the manufacturer warranty.
