When you are finished scraping, use a power washer and wash the rest of the debris off. Consider different top-coat paints depending on the climate. Use your sponge or paint roller to apply this solution to your metal roof.
It has never had any paint or other coating that I can tell. Once you've conditioned the galvanized metal to accept paint, apply a rust inhibitive primer to prevent a recurrence. Make use of the right kind of paint and primer from Sherwin-Williams to ensure best results whether you plan to paint an old roof or a new one. For a new and unpainted roof, allow it to weather for six months before painting it. We are adding modern touches and fresh paint everywhere, painting galvanized metal roofs. However, paint on metal roofs often peels or rusts, in which case it is time to repaint it. Other Collections of Decorative Table Lamps. The transit hub, designed by Spanish architect Santiago Calatrava, resembles a monumental steel rib cage and the wings of a bird.