The proper installation of high quality roof deck protection like Deck Armor Premium Breathable Roof Deck Protection, Shingle Mate Roof Deck Protection, or Tiger Paw Roof Deck Protection i s the foundation on which a good roof system is built..To keep your roof from lo.ng wavy, protect your roof deck. Choose covering that protects against wind driven rain and also allows moisture to escape form your attic..Installing a new roof over shingles takes less time than tearing off the old roof. Looks just as good and lasts as long. 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..Cost A DIY asphalt roof installation on a standard ranch style house costs from $ to $,, depending on the size of the roof and the quality of the materials. Professional installation can cost between $, and $,..