The answer to 'how to maintain asphalt shingles' is to regularly inspect, clean, and repair your asphalt shingles to ensure they last as long as possible. Asphalt shingles typically last 15-30 years with proper maintenance, but neglecting them can lead to leaks, water damage, and the need for a full roof replacement.
Start by visually inspecting your roof at least once a year, looking for cracked, curled, or missing shingles. Clean the roof by gently brushing away any debris, moss, or mildew. Repair any damaged shingles by using roof cement to re-adhere them or replacing them entirely. Additionally, keep your gutters and downspouts clear of leaves and debris to prevent water buildup that can cause shingle deterioration.