Prepare the roof deck by ensuring it is clean, dry, and free of any debris or protrusions. Repair any damaged or rotten areas of the roof deck as needed. Install underlayment: Start by installing a waterproof underlayment such as felt paper or synthetic underlayment to provide an additional layer of protection against water infiltration.

nstall metal flashing around roof penetrations such as chimneys, vents, and skylights. Flashing helps to prevent water from seeping into vulnerable areas of the roof.

Install starter shingles along the eaves of the roof. Starter shingles provide a secure base for the first row of architectural shingles and help prevent wind uplift.

Begin laying the architectural shingles from the bottom of the roof, overlapping each row to ensure proper water shedding. Follow the manufacturer's instructions for the specific installation method of the architectural shingles you're using. This typically involves nailing each shingle according to the manufacturer's specifications and ensuring proper alignment and spacing.

Install special architectural shingles designed for valleys and ridges to ensure proper water runoff and protection in these areas of the roof. Use flashing or valley metal to protect the valleys and ridges from water infiltration.

Install hip and ridge cap shingles along the hips and ridges of the roof to provide a finished appearance and added protection against wind and water infiltration. Use manufacturer-recommended installation techniques for hip and ridge cap shingles to ensure a watertight seal.

Install roof ventilation components such as ridge vents, soffit vents, or attic fans to promote air circulation and prevent moisture buildup in the attic space. Proper ventilation helps extend the life of the roof and prevents issues such as ice dams and mold growth.

Clean up any debris and leftover materials from the roof installation. Conduct a thorough inspection of the newly installed architectural shingle roof to ensure it meets quality standards and is free of defects.

Regularly inspect and maintain the architectural shingle roof to identify and address any issues promptly. This may include cleaning gutters, removing debris, and repairing damaged shingles or flashing.