What Is a Roof Tear Off?
A roof tear-off is the removal of every layer of old roofing down to the bare wood deck, so the new roof can be installed on a clean, sound surface. The first working day of most roof replacements. Shingles, underlayment, nails, and flashing all come off, the deck is inspected foot by foot, and any wood that has rotted or gone soft is cut out and replaced before a single new shingle is laid.
The tear-off is also the only moment anyone gets to see the structure your roof is built on. Here is what that looks like on a real job:
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Roof Tear-Off
What the Deck Tells Us Once the Shingles Are Gone
With the roof stripped, the deck gets walked and inspected across its entire surface. Three things get flagged:
Rot
Wood that has taken on water for years turns dark, spongy, and crumbly at the edges. It usually shows up in the same places: around chimneys and skylights, in valleys, at the eaves where ice dams form, and anywhere old flashing failed.
Storm and impact damage
Hail and falling limbs can crack or puncture the deck without leaving anything visible from the ground. The old shingles hide it. Once they come off, the damage is obvious.
Soft or springy spots
A section that flexes underfoot has lost structural strength even if it looks fine. Sometimes it is delamination, where the layers of the panel have separated. Sometimes it is a sheet that was too thin for the rafter spacing to begin with.
What Happens When a Roofer Finds Bad Decking
The bad sections get cut out and replaced with new panels before installation begins. That is the whole answer, and it should not be more complicated than that.
Decking is almost never included in the original estimate, because nobody can see it until the tear-off. Our crew shows you the damage, tells you what it will take to fix it, and gets your approval before continuing. A crew that quietly roofs over soft wood, or that suddenly discovers thousands of dollars of rot mid-job with no photos to back it up, is telling you something about how the rest of the job will go.
Ask for pictures. Any roofer worth hiring will already be taking them.
The Rest of the Roof Replacement Process
Once the deck is sound, the roof replacement process is straightforward:
- Ice and water shield along the eaves, in the valleys, and around penetrations.
- Underlayment across the rest of the deck.
- Drip edge at the eaves and rakes.
- New flashing at every wall, chimney, and vent.
- Shingles from the bottom up, starter course first.
- Ridge vent and ridge cap to finish, and a full cleanup with a magnetic sweep for nails.
Most single-family homes are torn off and reroofed in one to two days. Weather, roof size, and how much decking has to be replaced move that number.
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What a Tear-Off Looks Like From the Ground
Looks loud and messy while it happens. You do not need to be home, though many homeowners want to be there when the deck is exposed so they can see their own roof for themselves. Move vehicles out of the driveway, take anything fragile off upstairs walls, and expect noise until the last of the old roof is down.
Our crews work in the Amish tradition, and the cleanup at the end is treated as part of the job rather than an afterthought. Depending on the service and the situation, the roofs we install are backed by our $30,000 guarantee.
FAQ'S
On a typical single-family home, the tear-off itself takes a few hours to a day. Steep pitches, multiple existing layers, and complicated rooflines all add time. Crews aim to strip and dry in the same section on the same day so the deck is never left open overnight.
Partly. From the attic, you can spot water stains, daylight through the sheathing, and obvious rot along the rafters. From the roof surface, you can feel soft spots underfoot. Neither method catches everything, which is why decking is quoted after the tear-off rather than before.
The homeowner usually does, since it is additional material and labor found after the estimate. If the rot came from a covered event like a storm, it may fall under an insurance claim. Costs vary by how many sheets are involved, and our roof cost guide has the current ranges.
No. Most people are at work. Clear the driveway, move anything breakable off upstairs walls, and make sure the crew has access to a water spigot and an outlet if they need one.
It should not. Tarps go over shrubs and beds, and gutters are protected or removed depending on the job. If your gutters are being replaced anyway, doing it in the same visit is usually cheaper than scheduling it separately.
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