Roof replacement timeline

Roof replacements look like a single project, but they move through distinct phases: planning, permitting, tear-off, install, inspection, and cleanup. Understanding the sequence helps you compare contractor timelines and spot bids that skip important steps.

Typical phase overview

1. Inspection and scoping (1 to 2 weeks): A roofer measures the roof, checks deck condition, notes penetrations, and confirms material choices. Get this in writing before you sign.
2. Permits and scheduling (1 to 3 weeks): Many cities require permits before work starts. Crew availability often drives the calendar as much as paperwork. See our roof permits guide.
3. Material delivery (2 to 7 days before start): Shingles or panels may arrive on a separate truck. Confirm where materials will sit and who protects landscaping and driveways.
4. Tear-off and dry-in (day 1): Old roofing comes off, damaged decking is replaced, ice and water shield and underlayment go down. This is the noisiest day.
5. Install and flashings (day 1 to 3): Field material, ridge vents, pipe boots, and wall flashings are installed. Steep or complex roofs take longer.
6. Inspection and punch list (1 to 5 days after): The city may inspect before or after completion depending on local rules. Walk the property with your contractor for final cleanup.

Duration by roof type

• Asphalt shingles: Often 1 to 3 days for a typical home.
• Metal standing seam: Commonly 3 to 7 days depending on complexity and custom trim.
• Tile or slate: Can run 1 to 2 weeks because of weight, underlayment requirements, and slower placement.

Weather and contingency planning

Roofers cannot safely dry-in during active rain or high wind. Build a buffer of 2 to 3 days beyond the quoted schedule, especially in shoulder seasons. Ask how the crew protects open decking overnight if weather turns.

Questions to ask about timeline

• Who pulls permits and books inspections?
• What happens if hidden deck rot is found during tear-off?
• Will the same crew stay on the job start to finish?
• How do you handle weather delays and overnight dry-in?

Pair this timeline with cost planning in our roof replacement cost guide and roof estimator.