Why we don't publish a single price
Online averages rarely match a specific home. Material prices change, and two houses with the same square footage can have very different roofs. Instead, use the factors below to read and compare written estimates.
The main cost factors
Roof size (squares)
Roofers measure in "squares" — one square equals 100 square feet of roof surface. Roof area is larger than the home's floor area because of pitch and overhangs.
Pitch and complexity
Steeper roofs require more safety equipment and slower work. Multiple valleys, dormers, hips, and skylights add labor and flashing.
Material choice
3-tab, architectural, and impact-resistant shingles differ in price, and metal roofing typically costs more upfront. See asphalt shingle roof replacement for shingle options.
Tear-off requirements
Removing one layer is standard; removing two or more layers adds labor and disposal costs.
Decking damage
Rotted or soft sheathing is usually discovered during tear-off and is often priced per sheet. Ask for that unit price in writing upfront.
Flashing, ventilation, and accessories
New drip edge, pipe boots, step and counter flashing, ridge vents, and added intake ventilation all affect the total and the roof's long-term performance.
What an itemized estimate should show
- Roof size in squares and the specific materials (brand and product line).
- Tear-off scope, number of layers, and disposal.
- Per-sheet decking replacement price.
- Underlayment, flashing, ventilation, and drip edge details.
- Permits if required, timeline, payment schedule, and written warranty terms.
Comparing estimates for roof replacement in Sherman, TX? Make sure each quote covers the same scope so you're comparing like for like.
Frequently Asked Questions
Why do roof estimates vary so much?
Different materials, ventilation plans, decking assumptions, and warranty terms. Ask each contractor to itemize so you can compare scope, not just totals.
Does insurance cover roof replacement cost?
Coverage depends on your policy and the cause of damage. Normal wear and age are generally not covered; sudden storm damage may be. Ask your insurer.
Should I pay the full amount upfront?
Be cautious about large upfront payments. Review the payment schedule in the written contract before signing.