Applying the paint apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.
													
																	How to paint corrugated tin roof. 
									
	
		
	
																	You ll get the best results if you use brushes or rollers designed for a metal roof. 
																	How to paint corrugated metal roofing. 
																	Use a long handled paint roller and apply primer until no portion of the metal is visible. 
																	How to paint corrugated metal. 
															
													
									
	
		
	
																	If crawling around on a metal roof in. 
																	Step 2 maintain the roof. 
																	Work the brush back and forth to remove rust spots. 
																	Spray down the corrugated. 
															
													
									
	
		
	
																	Scratch rust off the corrugated metal with a stiff bristled wire brush. 
																	Apply the metal etching primer to the rusted galvanized metal roof using the roller. 
																	Pour an exterior grade rust inhibiting primer into a paint tray and apply it to each roof panel. 
																	Before applying a new coat of paint you. 
															
													
									
	
		
	
																	Wash the brush or roller you used for the primer or get a new one. 
																	Apply a generous amount of paint across the entire roof. 
																	Roll in a vertical motion working backward toward the extension ladder. 
																	Wait three hours for the metal to dry. 
															
													
									
	
		
	
																	Again work from your ladder as much as possible. 
																	Step 3 use a power washer. 
																	Now that your roof is cleaned and primed you can start painting. 
																	Step 5 apply the primer. 
															
													
									
	
		
	
																	Begin at the far side of the roof. 
																	If your roof is unpainted prime it with a metal primer. 
																	The first trick to corrugated metal roof is to not paint a dirty metal roof. 
																	Step 1 clean the roof. 
															
													
									
	
		
	
																	Step 4 purchase a primer.