Some contractors will use ice and water shield under the shingles, others will choose to install metal flashing. Further, some contractors will install both for extra protection. A professional roofing contractor will consider many factors and make a recommendation as to the best method and style for the specific project. A detailed estimate will include these recommendations.
Craig Gouker Roofing has been installing quality residential roofing in South & East Pittsburgh since 1991 and is the expert in shingle roof replacement.