The 125 sq. ft. per gallon does not take into consideration the vents, skylights, air conditioners, etc. that wonโt be coated. The sq. footage is an estimate and is usually more than enough. We want the customer to have more than enough to finish the job โ not be in the middle of the job and discover there isnโt enough to finish.
Our instructions say the job must be done in the same day. In some circumstances (weather & humidity), it may be necessary to finish the second coat the next day. It is very important that at least the first coat be applied within 5 hours of washing the Activator/Cleaner off. There is no real benefit to doing a third coat. Touch up is possible later but doing a large section or re-coating the entire roof should involve using the Activator/Cleaner again and starting new.
I hope this answers your question! Feel free to call Dicor at 574-264-2699 if you need further assistance!
Safe and happy travels!
Dicor Corporation