Professional installation of roof shingles involves a systematic process to ensure long-lasting quality and waterproofing. According to the guidelines followed by Triumph Roofing, the process includes the following steps:

1. Roof Preparation

The roof deck must be clean, dry, and properly sheathed with 1/2-inch plywood or OSB before installation begins.

1. Starter Course

Apply starter shingles along the eaves with a 1-2 inch overhang. These are secured with nails placed 5-8 inches above the sealant strip.

1. Field Alignment

Successive courses of asphalt shingles should be offset by 6 inches. Each shingle typically requires 4 nails, positioned 1 inch from the edges and 1 inch above the sealant. It is important to maintain 1/8-inch exposure gaps to prevent the shingles from buckling.

1. Ridge and Hip Capping

Install ridge cap shingles or cut field pieces from architectural shingles to cover the peaks. Joints should be sealed with roofing cement according to manufacturer specifications to ensure wind-resistant edges.

1. Quality and Safety

Professional installers use safety harnesses and work in teams, especially for commercial projects. The process concludes with a final check for straight alignment, secure nailing, and debris removal.