How To Install Composite Roofing

November 30, 2025

2 min read

dilshadakram

To install composite roofing, you need to prepare your roof deck, add underlayment, install starter shingles, and then nail down rows of composite shingles from bottom to top. Composite shingles are made from fiberglass, asphalt, and other materials that last much longer than basic asphalt. According to industry data, asphalt shingles account for nearly 80% of residential roofing projects in the U.S. Composite roofing is popular because it costs less than metal or slate but lasts much longer than cheap asphalt. Most homeowners hire professionals for this job because it requires skill and safety gear. The process takes 1 to 3 days depending on roof size.

What Do You Need Before You Start?

First, clear your roof of old shingles and debris. You need a clean, flat surface to work on. Check that the roof deck is solid. If there are soft or rotten spots, repair them first.

Get these tools ready: a hammer, nail gun, utility knife, chalk line, tape measure, and safety harness. You will also need underlayment, starter strip shingles, composite shingles, and roofing nails. According to RubyHome, roof installation costs range from $4 to $40 per square foot, depending on materials and labor.

Related articles:

How Do You Layer the Materials?

Start by laying underlayment across the entire roof deck. This is a waterproof barrier that protects your home if water gets under the shingles. Nail it down every 12 inches along the edges.

Next, install the starter strip along the bottom edge of the roof. Starter shingles help prevent wind damage and water leaks. They stick out slightly and create a solid base for the first row of real shingles.

What Is the Step-by-step Process?

Begin at the bottom left corner. Nail the first row of composite shingles to the starter strip. Leave a small gap for expansion. Each shingle gets four nails, one near each corner.

Work your way up the roof, row by row. Each row overlaps the one below by 5 to 6 inches. This overlap keeps rain from running underneath. According to RubyHome, composite and architectural asphalt shingles cost between $4.50 and $8.25 per square foot installed. Stagger the shingles so the seams do not line up vertically. This gives your roof strength and looks better too.

Step	What to Do
1	Clear and prepare the roof deck
2	Install underlayment barrier
3	Add starter strip shingles
4	Install first row with four nails per shingle
5	Overlap each row by 5 to 6 inches
6	Stagger seams for strength
7	Add ridge caps at the peak

How Long Will Your Composite Roof Last?

Composite shingles last between 25 and 50 years on average. According to RubyHome data, architectural asphalt shingles typically last 30 years. This is much longer than basic three-tab shingles, which last only 20 years. Your roof’s lifespan depends on climate, maintenance, and how well it was installed. According to the National Association of Home Builders, the average U.S. roof is 2,647 square feet. Regular gutter cleaning and inspections help composite roofs last longer.

Installing composite roofing is tough work that demands precision and safety know-how. Most homeowners choose to hire licensed roofers who have insurance and experience. According to industry data, 79% of homeowners hire contractors for roof work. If you decide to DIY, follow safety rules, use a harness, and do not work in bad weather.

Related articles:

If you need help with your roof, reach out to a trusted roof contractor for clear pricing and reliable service.