Has the same manufacturer s warranty.
How to install a roof over existing shingles.
As long as it s done right and under the right conditions installing new shingles over old ones can last as long and look just as good as a complete re roof.
Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option a properly installed layover roof can look and function as well.
Looks just as good and lasts as long.
Installing a new roof over shingles takes less time than tearing off the old roof.