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How Hail Damage Roof Replacement Works Start to Finish

Last updated October 25, 2026

The short answer

Inspect and Document the Damage

Before any work begins, you need a clear picture of what the hail actually did. Walk around your property and look for missing shingles, cracked tiles, or dents in metal roofing. Take photos of every visible issue, and check your gutters and downspouts for granules from worn shingles.

A water damage inspection is the next step. The pros will examine the roof surface, flashing, valleys, and vents to map out the full extent of the damage. This assessment also shows whether water has already penetrated the underlayment, which affects how much of the roof deck needs replacement.

  • Look for bare spots where granules have washed away
  • Check for cracks or holes in shingles and tiles
  • Inspect metal flashing and vent boots for dents
  • Note any water stains on ceilings or walls inside
  • Document everything with photos and dates

Prepare the Work Area

Once you and the pros agree on the scope, the old roof comes off. The pros set up tarps and protective sheeting to keep debris out of your yard and garden. They also cover any openings so rain cannot get in while the roof is exposed.

Interior preparation matters too. Move fragile items away from windows and walls in case of vibration. If you have an attic, clear a path so the pros can check the underside of the roof deck for rot or mold. This keeps the job safer and faster.

Remove Old Roofing Materials

Removal is a noisy, dusty step. The pros strip away shingles, underlayment, and any damaged flashing, working from the top down. They haul each load off separately, keeping the site tidy and reducing the risk of slips.

During removal, the pros inspect the roof deck for soft spots, water stains, or sagging. If hail or moisture has damaged the plywood or OSB, those sections get cut out and replaced. This step is critical because a new roof over a bad deck will fail early.

Install New Underlayment and Roofing

With the deck repaired, the pros lay down a new synthetic underlayment. This water-resistant barrier protects the deck from condensation and wind-driven rain. It is sealed around pipes, vents, and valleys to keep every seam watertight.

Then the new roofing material goes on. Whether you choose asphalt shingles, metal panels, or tile, the pros start at the lower edge and work upward, overlapping each course. They fasten every piece according to the manufacturer's specifications, then add ridge caps and new flashing to finish the edges.

Final Inspection and Cleanup

After the last shingle is nailed, the pros walk the entire roof to check for loose fasteners, gaps, or misaligned courses. They also inspect the new flashing and sealant around chimneys and skylights. This final pass catches small issues before they become leaks.

Cleanup is just as important as installation. The pros remove all debris, nails, and old materials from your property and run a magnet over the yard to pick up stray fasteners. You should also check your attic for any new water stains after the first heavy rain. A quick post-rain check gives you peace of mind.

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Frequently asked questions

How long does a full roof replacement take?

Most residential roof replacements take two to five days, depending on the roof size, pitch, and material. Weather can add time, especially if rain interrupts the work. Your specific timeline depends on the pro's schedule and the condition of your roof deck.

Will my insurance pay for hail damage roof replacement?

Policies vary, and your insurer decides what is covered. Hail damage is often covered under homeowners insurance, but your deductible and policy limits matter. Check your policy documents and file a claim early, as the insurer may want to inspect the damage before repairs begin.

Can I just patch the hail-damaged spots instead of replacing the whole roof?

Patching works only if the damage is minor and isolated. If hail cracked shingles across the entire roof or damaged the underlayment, patches will leak later. A full replacement is often the more cost-effective long-term choice. The pros can help you decide based on the inspection.

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