Start here
Quick, low-risk steps
- Mark indoor leak locations and note weather timing before the contractor arrives.
- Use binoculars or ground-level photos to check roof condition without climbing.
- Collect roof age, material type, and any prior repair records.
- Ask each bidder to state measured area and all assumptions in writing.
- Separate required work from optional upgrades in the contract.
Initial Inspection and Estimate
The process begins with a thorough inspection of your existing roof. A contractor will assess the condition of shingles, flashing, decking, and ventilation. They should also check the attic for signs of leaks or structural issues. This inspection informs the scope of work and helps identify any hidden problems.
After the inspection, you will receive a written estimate. It should detail the materials, labor, permits, and any allowances for decking replacement. Compare multiple estimates and ask questions about anything unclear. A good estimate separates required work from optional upgrades.
- Request a detailed, line-item estimate.
- Confirm the contractor will handle permit applications.
- Ask about the allowance for decking replacement if rot is found.
- Verify the material system includes all components: underlayment, leak barrier, flashing, vents.
Preparation and Tear-Off
Before work begins, prepare your property. Move vehicles away from the work area, cover items in the attic, and protect landscaping. The crew will set up tarps and plywood to shield your home and collect debris. Tear-off involves removing old shingles down to the decking.
During tear-off, the contractor will inspect the decking for damage. If rot or structural issues are found, they will discuss replacement with you. This is a common point for change orders, so understand your contract's terms. The old materials are loaded into a dumpster for disposal.
- Clear the driveway and yard of obstacles.
- Cover attic belongings to protect from dust and debris.
- Discuss decking replacement costs and approval process beforehand.
- Ensure the crew uses proper safety equipment and site protection.
Installation of New Roof System
With the decking exposed and repaired, the crew installs the underlayment and leak barrier. These layers protect against water intrusion. Next, they install flashing around chimneys, vents, and valleys. Proper flashing is critical to prevent leaks.
The main roofing material—such as asphalt shingles or metal panels—is then applied. The crew will also install or upgrade ventilation components like ridge vents or soffit vents. Finally, they clean up the site, removing all debris and nails. A thorough cleanup is a sign of a professional job.
- Confirm underlayment type and coverage with your contractor.
- Ensure flashing is replaced, not reused.
- Ask about ventilation improvements to meet current code.
- Inspect the site after cleanup for leftover materials or nails.
Final Inspection and Closeout
After installation, the contractor will schedule a final inspection with the local building department. An inspector will verify the work meets code requirements. This step is essential for your safety and for warranty validity. Do not make the final payment until the inspection passes.
Once approved, you will receive a closeout package. This should include the permit sign-off, warranty documents, and maintenance instructions. Review the warranty terms carefully. Keep all records for future reference or if you sell your home.
- Do not pay in full until the final inspection passes.
- Obtain a copy of the signed permit and inspection report.
- Review manufacturer and workmanship warranties.
- Ask for a maintenance checklist specific to your new roof.
Take this with you
Evidence and scope checklist
- Roof measurement and pitch
- Tear-off and disposal
- Decking allowance
- Underlayment and leak barrier
- Flashing
- Vents and ventilation
- Material system
- Permit and inspection
- Site protection and cleanup
- Warranty and change-order terms
Common questions
What homeowners ask next
How long does a roof replacement take?
The duration depends on roof size, complexity, and weather. Your contractor can provide a timeline after inspection. Expect at least a few days for a typical home.
Do I need to be home during the replacement?
It is not required, but being available for questions can help. The work is noisy, so you may prefer to be away. Ensure the crew has access to power and water if needed.
What happens if it rains during the project?
Professional crews monitor weather and protect exposed areas with tarps. They will not install materials in wet conditions. Delays are possible, but your home should stay dry.
Evidence
Sources used for this guide
Research checked July 31, 2026
- Zoning, development, and permitting servicesCity of Atlanta
Current Atlanta permit workflow and jurisdiction-specific cautions.
- International Residential Code wind and roof compilationFEMA
Model-code background; locally adopted code and permits control.
Optional next step
Need an on-site professional?
Use the guide and worksheet first so you can describe the situation and compare the full scope. A referral is optional; you can also contact a licensed local provider directly.
We have not enabled a provider route for this site. Use the checklist to contact and verify local providers yourself; urgent hazards should go to the appropriate emergency or public service.