We have been doing metal roofs for about 12 years now and I think we found the product to end all. Great staff who walked us through our first roof. We had a 25,000 sq ft flat roof, mostly metal with some rusting and areas where the vents were covered with a hot tar application. We brushed on an elastomeric coating on the tar areas and on the heavily rusted areas covered them with a metal primer. By the way the product is nice to work with. Given the 8 hour timeframe you have to work with, our guys didn’t have to rush. Not the case with some of the other products out there where the set up is real quick. We were quite amazed with the appearance. It looks like someone put a 25,000 sq ft piece of sheet epdm on our roof. We’ll be back!