Inside a Roof Replacement: What Happens Each Day

A new roof sounds like a month of chaos. For most houses it is one long, loud day. Homeowners picture weeks of scaffolding, tarps flapping in the wind and nails scattered across the driveway. The reality, with a well-organized crew and good weather, is far more contained. By the time you get home from work, the house can already be watertight, and the trucks are often gone by the end of the following afternoon.

Here is exactly what to expect. We have broken it down from the week before the job to the final walkthrough, so there are no surprises when the dumpster backs into your driveway.

The week before

Good roof days start with good planning. A few days before the job, your project manager will call to confirm the start date, check the forecast and go over a short list of things to do around the house. Roofing depends on dry weather, so if rain moves in, we will reschedule rather than leave your home open to the sky.

• Move cars out of the garage and driveway the night before
• Take pictures and wall hangings down from the top floor, since hammering can shake them loose
• Cover items stored in the attic with old sheets to catch dust
• Bring patio furniture, grills and planters away from the house
• Plan to keep pets inside or away from home for the day
• Let your neighbors know the date so they are not surprised by the noise

We also deliver materials ahead of time when possible. You might see bundles of shingles placed on the roof or neatly stacked by the driveway a day early. That is normal and helps the crew start right on time.

Day one: tear-off and dry-in

Old shingles come off, the decking is checked and underlayment goes on — your home is watertight by evening. That is the core of day one, and it moves faster than most people expect.

The crew usually arrives early in the morning. Before anyone touches the roof, they lay protective tarps over landscaping, lean plywood against windows near the work area and set up a dumpster or trailer as close to the house as possible. Then the tear-off begins. Using roofing shovels, the crew strips the old shingles and underlayment slope by slope and slides the debris straight down into the dumpster below. This is the loudest part of the whole project, so it is a good morning to run errands.

Checking the decking

Once the old roof is off, we can finally see the wood underneath. This is the moment the foreman walks every slope and checks the decking for rot, soft spots and damage. Any bad sheets are cut out and replaced. We photograph what we find and call you before replacing more than the amount listed in your contract, so there is never a surprise on the final bill.

Underlayment and dry-in

With solid decking in place, the crew installs ice and water shield in the most vulnerable areas, such as valleys, eaves and around chimneys and skylights. Then synthetic underlayment rolls out across the rest of the roof. New drip edge goes on along the edges. At this point, the house is protected from rain even though no shingles are on yet. That is what roofers mean by dry-in, and it is the goal for the end of day one.

We leave the yard cleaner than we found it. That is a promise in writing.

Dana

Dana, who runs our office and handles every scheduling call, put that line in our contracts years ago. Even at the end of day one, the crew does a first cleanup pass, picks up loose debris and runs a magnetic sweeper across the driveway so you can park safely overnight.

Day two: shingles and cleanup

Shingles, flashing and ridge vents, then a magnet sweep of the yard for every last nail. Day two is when the house starts to look like itself again, only better.

The crew starts at the bottom edge of each slope with a starter strip, then works upward course by course. Each shingle is nailed in a specific pattern recommended by the manufacturer, and the rows are kept straight with chalk lines. Around chimneys, skylights and walls, new step flashing and counter flashing are installed to direct water away from the seams, which is where most leaks begin.

Near the top, pipe boots are replaced and the ridge vent goes on. A ridge vent lets hot, moist air escape from the attic, which helps the new shingles last longer and keeps the upstairs a bit cooler in summer. Finally, special cap shingles are laid along the ridge and hips for a clean, finished line.

The cleanup

Once the last shingle is down, the crew shifts into cleanup mode. Tarps come off the plants, the gutters are cleared of debris and the dumpster is hauled away. Then comes the magnet sweep. The crew rolls a wide magnetic sweeper across the lawn, the flower beds, the driveway and the street in front of the house, often more than once. Stray nails are the number one thing homeowners worry about, and we take that worry seriously.

Key takeaway: on most homes, day one ends watertight and day two ends with a finished roof and a clean yard. Larger or more complex roofs can take a day or two longer.

Living at home during the work

Most families stay home during a replacement, and that is perfectly fine. Expect steady hammering overhead, especially on the top floor, and plan quiet activities like naps or video calls for another room or another location. Keep kids and pets away from the sides of the house where debris is coming down, and use the door farthest from the dumpster when you go in and out. If anyone in the house works nights or has a newborn, tell us ahead of time and we will do our best to plan the noisiest work around it.

The final walkthrough

After the crew leaves, your project manager comes back for a final inspection. They walk the roof, check every flashing detail and photograph the finished work. Then they walk the yard with you if you are home. We want you to point out anything that does not look right before we close out the job.

You will receive a final packet with photos of the decking, the underlayment and the finished roof, along with your warranty information. Keep it with your home records. It is useful for insurance, for future inspections and for buyers if you ever sell the house.

What can stretch the schedule

Most projects follow the two-day pattern, but a few things can add time. Weather is the big one. If rain or high wind is forecast, we will not tear off a roof we cannot dry in by nightfall. Steep or complicated roofs with many valleys and dormers take longer. Extensive rotten decking also adds time, though we always call you before going beyond what was planned.

Whatever happens, you will know about it. We send a quick text at the start and end of each workday so you always know where things stand, even if you are at the office. If you are planning a replacement, call our office and Dana will walk you through scheduling, from the first inspection to the last nail.