Should I use asphalt shingle roof nail caps? Always 36% In most cases 27% Never 18% Not sure 18% Get Free Quotes Today! Question: Should I use asphalt shingle roof nail caps? Top Answer (36% of 11 votes): Always. Answer: Never Explanation: You must use a galvanized roofing nail when installing shingles American roofing &remodeling Get Free Quotes Today! Find Local Pros Free Asphalt Shingle Roof Installation Cost Estimates Related Questions How Much Does a New Shingle Roof Cost? How Much Does a New Asphalt Roof Cost? Are asphalt roof shingles biodegradable?Top answer: Never Are Asphalt Shingles Considered Hazardous Waste?Top answer: No Can Moss Damage an Asphalt Shingle Roof?Top answer: Always