CertainTeed has released a mobile app for its roofing Shingle Applicator’s Manual (SAM). Available via the Google Play Store, the iTunes Store and the CertainTeed MyEDGE™ website, the app brings the company’s roofing installation guide to roofing professionals’ mobile devices for use whenever, wherever they need it. Once the app is downloaded, it is ready for use. A drop-down menu allows users to find brief product-specific instructional videos, how-to procedures for fastening shingles on low- and steep-slope roofs, instructions on the preferred methods of installation and much more. The Roofing Shingle Applicator’s Manual app is a complementary tool to the popular CertainTeed SAM, which is a comprehensive, fully illustrated guide to steep-slope roofing installation. It features application instructions for all CertainTeed shingle products as well as important guidelines for workmanship. For more information, visit www.certainteed.com.