The answer to 'how to maintain roof replacement' is to regularly inspect, clean, and repair your new roof to extend its lifespan. This includes checking for any loose, damaged, or missing shingles, clearing debris from gutters and downspouts, and addressing any leaks or other issues promptly.
It's recommended to inspect your roof at least twice a year, in the spring and fall, and after any major storms. You can often do basic maintenance tasks like shingle replacement or gutter cleaning yourself, but for more complex repairs or if you're unsure, it's best to hire a professional roofing contractor.