How to install 3 tab shingles on a roof?

To install 3-tab shingles on a roof, start by preparing the roof deck and ensuring it is clean and free of debris. Next, install a drip edge along the eaves and rakes of the roof. Then, begin laying the shingles starting from the bottom edge, overlapping each row to create a staggered pattern. Secure the shingles with roofing nails and continue this process until the entire roof is covered. Finally, trim any excess shingles and install ridge caps along the peak of the roof for a finished look.