How long does a roof replacement take?

Last updated · Costs & the replacement process

Short answer: Many asphalt shingle replacements on a typical house take one to three working days on the roof. Larger or steep roofs, multiple old layers, deck repairs, and tile or metal take longer. Add time before the job for estimates, contract, permit, and material delivery, and after it for a final inspection. Weather is the biggest wildcard.[2]

Roof partway through replacement with underlayment installed on the deck
Mid-replacement: underlayment going down after tear-off.

How long does the roof work itself take?

The roof work itself takes the least time of the whole process. On a single-story house with a simple roof and one layer of shingles, many crews finish tear-off and install in one or two days. A two-story house with many valleys, dormers, or skylights may take three days or more. Tile and metal roofs usually take longer than asphalt, since each piece is fastened or cut by hand and some materials need extra underlayment or battens.

What happens before work starts?

Before work starts, you get estimates, sign a contract, and the roofer orders materials and pulls the permit if one is needed. The Federal Trade Commission recommends getting the start and completion dates in the written contract.[2] Permit turnaround can range from same-day online approval to a week or more in busy departments. Special-order colors and tile can add weeks, so ask about lead times when you pick materials.

What does a typical day-by-day schedule look like?

A typical schedule for an asphalt shingle roof looks like this: - Day 1 morning: crew arrives, protects landscaping, sets the dumpster or trailer, and starts tear-off - Day 1 afternoon: deck inspection and repairs, then drip edge, ice barrier, and underlayment so the roof is dried in by evening - Day 2: shingles, flashing, vents, and ridge cap - Final day: cleanup with magnetic nail sweeps and a walk-around with the crew lead Larger roofs repeat the tear-off and dry-in cycle in sections, so the house is never left open overnight.

What can slow a roof replacement down?

Several things can slow a roof replacement down. Rain, high winds, and lightning stop work, and many shingles need warm weather for the adhesive strips to seal. Rotten decking found during tear-off adds time to replace sheets. A second or third layer of old roofing doubles tear-off labor. Code inspections that must happen mid-job, such as an underlayment inspection, can pause work until the inspector arrives. Busy storm seasons stretch every roofer's schedule.

Do inspections add time?

Inspections add some time on many jobs. The International Residential Code sets the rules for underlayment, ice barrier, drip edge, and flashing, and some departments want to see those details before shingles cover them.[1] Others only require a final inspection after the job. Ask your roofer which inspections your city requires and how quickly they are usually scheduled.

Can you stay home during a roof replacement?

You can usually stay home during a roof replacement, but expect noise from tear-off and nail guns from early morning. Pets may be happier elsewhere. Items on interior walls can rattle, and some dust may fall in the attic, so cover stored belongings. Keep cars out of the driveway and away from the drip line. Our guide on how to prepare your home has a full checklist.

What should happen on the last day?

On the last day, the crew should clean the yard, gutters, and driveway, run a magnet over the lawn for nails, and remove the dumpster. Walk the property with the crew lead and look at the roof from all sides. Ask for photos of the deck, underlayment, and flashing taken during the job. A roof inspection checklist like InterNACHI's covers the same points an inspector looks at: coverings, flashing, penetrations, and drainage.[3]

How long until the job is fully closed out?

The job is fully closed out when the final inspection passes, you receive the invoice and lien waivers, and the warranty is registered. That can take a few days to a few weeks after the crew leaves. Keep a folder with the contract, permit number, inspection result, warranty, and photos. If you are working with insurance, the insurer may need the final invoice before releasing any held-back payment, depending on your policy.

Frequently asked questions

Can a roof be replaced in one day?

A small, simple asphalt roof can be done in one day by a large crew. Most homes take one to three days.

What if it rains during my roof replacement?

Crews dry in each section with underlayment before stopping and keep tarps ready. Work pauses until it is dry.

Do I need to be home during the roof replacement?

Not always, but be reachable. The crew may need attic access, and you will want to do the final walk-around.

See 2026 roof replacement cost in your city →

Sources

  1. 2021 International Residential Code, Chapter 9: Roof Assemblies. codes.iccsafe.org/content/IRC2021P2/chapter-9-roof-assemblies
  2. FTC, How To Avoid a Home Improvement Scam. consumer.ftc.gov/articles/how-avoid-home-improvement-scam
  3. InterNACHI: Roof Inspection. www.nachi.org/roof-inspection.htm

Sources checked November 4, 2026. Estimates are not quotes. Roofing, insurance, and legal details vary. Confirm with your contractor, insurer, or attorney.