This guide was prepared by the Asphalt Roofing Manufacturers Association (ARMA) as a general guide for the installation of three-tab asphalt shingles. This publication provides guidance for the installation of three-tab asphalt shingles during new-roof construction, reroofing and roof recovery, as well as special procedures for low and steep-slope roofing systems. Several other relevant topics are discussed, such as proper attic ventilation, ice dam protection, correct nailing methods, roof deck preparation, installing drip edges, and much more.