A residential roof replacement is a short, loud, disruptive project that is usually over faster than homeowners expect. Most single-family roofs in San Diego County are done in two to five working days once the crew starts. Knowing the sequence makes it much easier to tell whether the job is going well.
It begins with a full inspection, not a look at the leak. The roofer should document condition across every slope, check the attic, and identify what is under the covering as far as that can be known before tear-off.
From that comes a written scope: materials and quantities, tear-off and disposal, flashing and penetration work, ventilation, permit, and warranty terms. Deck repair is normally an allowance, since nobody can price rotten sheathing before seeing it.
The permit is pulled by the contractor. On qualifying reroofs, Title 24 cool roof requirements apply in climate zones 10 through 15, which covers inland San Diego County including Escondido, and the product has to be listed with the Cool Roof Rating Council. Compliance is handled at permit and should already be reflected in the scope. See materials and Title 24.
Move vehicles well clear of the house and keep them out for the duration, since debris and fasteners end up in the drive. Take down wall hangings and anything on shelves, because tear-off shakes the whole structure more than people anticipate. Cover what is stored in the attic, as decades of dust comes loose.
Clear patio furniture and grills from around the perimeter, plan for pets somewhere quiet, and expect the dumpster and material delivery to occupy the driveway. If anyone in the house works from home or sleeps during the day, plan around it. Tear-off is genuinely loud.
The old covering comes off, usually down to the deck, and goes straight into the dumpster. Crews normally work one section at a time so no more roof is open than can be dried in before the end of the day.
On tile, this stage differs. A lift and relay removes sound tile carefully and stacks it for reinstallation, which is slower than a shingle tear-off and is the reason tile work runs longer.
This is when the deck is finally visible, and it is when any surprise shows up. Rotten sheathing gets replaced now, and that is what the allowance in the estimate was for. Ask to see it before it is covered.
With the deck sound, underlayment goes down. On a tile roof this is the actual waterproofing layer and the single most important part of the entire job.
Flashing is next, and it is where a good roof separates from a bad one. Flashing at chimneys, walls, skylights, and valleys should be replaced rather than reused. Reusing old flashing to save money is a common corner to cut and a common reason a new roof leaks. Pipe boots should be replaced as well, ideally with metal rather than neoprene, which cracks under this much sun.
The new covering goes on from the eaves up, with valleys and penetrations detailed as the work reaches them. Ventilation is addressed here, and it matters more than most homeowners realize, because an under-ventilated attic cooks the roof from below and can take years off it.
Ridge caps finish the job. On tile, the reserved tile is reinstalled over the new underlayment at this stage.
Cleanup includes a magnet sweep of the drive, walkways, and landscaping for nails. Ask for it explicitly and walk the property yourself afterward, because stray fasteners in a driveway are the most common post-job complaint in the trade.
A final walkthrough should cover the finished roof, what was found and replaced at deck level, and the warranty paperwork for both material and workmanship. The permit gets its final inspection from the jurisdiction, and you should receive documentation that it closed. Do not make final payment before that happens.
Extensive deck rot found at tear-off. Rain, which stops work entirely and is why fall scheduling beats January. Complex roof geometry with many valleys, dormers, and penetrations. Tile lift and relay, which is slower than shingle by nature. Material backorders on a specific profile or color. And on an insurance job, waiting on adjuster approval for supplemental scope discovered after tear-off.
How long does a roof replacement take?
Most single-family roofs in San Diego County take two to five working days once the crew starts. Tile lift and relay, complex geometry, and significant deck repair extend that.
Do I need to leave the house during the work?
No. It is loud and dusty but you can stay. Plan around the noise if anyone works from home or sleeps during the day, and keep pets somewhere quiet.
Will my whole roof be open to the weather overnight?
It should not be. Crews work in sections and dry in what they open before the end of the day.
What happens if they find rotten decking?
It gets replaced before the new roof goes on, which is what the deck allowance in the estimate covers. Ask to see the damage before it is covered up.
Does my new roof have to meet Title 24?
On a qualifying steep-slope reroof in climate zones 10 through 15, which includes inland San Diego County and Escondido, cool roof requirements apply when the work covers more than half the roof. Your contractor handles compliance at permit.
When should I make final payment?
After the final walkthrough and after the permit has passed its final inspection and closed. You should receive documentation of both, plus material and workmanship warranty paperwork.
Related reading: choosing the right material · choosing a contractor · repair vs. replacement · all roofing guides
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Planning a replacement? our roof replacement service, start with a roof inspection, or roofing in Escondido.