Most residential replacements are measured in days, not weeks, unless the deck is worse than anyone admitted or the weather stops the work. The stressful part is tear-off morning, when the house is briefly a construction site. The important part is the hour when the sheathing is bare, because that is the only time rotten wood and bad flashing details are obvious.
Before the first shingle comes off
You should already have a written scope, a start date that respects the forecast, and a plan for cars, pets, and attic access. Crews protect siding and plantings to different standards. Ask what they cover. Move grill covers and lightweight yard art. If you work from home, plan to be elsewhere on tear-off day. It is genuinely loud.
Confirm who calls you if they open the roof and find soft plywood. The per-sheet price should already be in the contract so that discovery is a phone call, not a blank check.
The usual sequence
- Set protection and remove the old roofing down to the deck.
- Replace damaged sheathing and re-nail the deck as specified.
- Install ice-and-water membrane at eaves, valleys, and penetrations, then synthetic underlayment on the field.
- Replace flashing at walls, chimneys, and vents. Reusing painted-over flashing is how new roofs leak.
- Install starter, field shingles or panels, hip and ridge, and the ventilation pieces in the scope.
- Reset gutters if they were removed, sweep the site, and walk the punch list with you.
Ventilation belongs in that list, not as an optional extra the foreman might remember. If the job is also supposed to clear soffit intake, say so before the ridge is closed. The explanation is in insulation and roof ventilation.
What you should look at
You do not need to climb. Ask for photos of the bare deck, of any replaced sheets, and of flashing before it is covered. Those pictures are your record if a leak shows up next winter, and they help a buyer later. Walk the ground at the end of each day. Nails in the driveway are normal to find and not acceptable to leave.
Do not let interior protection be an afterthought if there are can lights or a bathroom fan in the attic. Dust finds those holes. A tarp over attic belongings is cheap.
After they leave
Get the product labels, the warranty registration, the final invoice, and the closed permit if one was pulled. Look in the attic on the next rain from a safe board, not by stepping through the ceiling. A new roof can still drip at a skylight or a chimney that was excluded. Note the exclusion now, while the crew is easy to reach. The longer checklist of decisions before this day is repair or replace.
Questions readers ask
Will the house be open overnight?
A careful crew dry-in the roof with underlayment before they leave, even if shingles are not finished. If weather turns, ask what “dried in” means on your house before they drive away. Felt or synthetic underlayment is not a finished roof, but it should keep that night’s rain out.
Can I stay home?
Yes. Expect noise, blocked driveway time, and workers around the perimeter. Tell them about dogs, door alarms, and kids’ schedules on day one.
How messy is disposal?
Tear-off is the messy day. A trailer or truck should be taking the debris, not a pile against the foundation for a week. Put disposal in the contract if you do not see it on the quote.
Take Care Nest publishes general information for homeowners. It is not an inspection, a bid, or a substitute for a licensed contractor. Where the structure may be unsafe, get a qualified professional on site before anyone walks the roof.