What Actually Happens During a Roof Replacement
A step-by-step look at the process so you know exactly what to expect before, during, and after.
If you've never had a roof replaced, you probably have questions nobody's answered yet.
How long will this take? Do I need to leave the house? What happens if they find damage underneath? Is it going to be as loud as I think?
These are completely reasonable things to wonder about, and the fact that most contractors don't address them upfront is part of why getting a new roof feels more stressful than it needs to be.
Here's the full picture, from start to finish, so you know exactly what you're signing up for.
Step 1 The inspection and estimate
Before anything happens, we get on the roof. Not just look at it from the driveway — actually walk it.
We're checking the condition of the shingles, the flashing around chimneys and vents, the state of the decking underneath, and anything that might affect the scope of the job. We'll also check the attic if access is available, since ventilation issues often show up there before they show up on the roof.
After the inspection, we give you a written estimate that breaks down what's included. A good estimate should cover:
Material type, brand, and color options
Whether it's a tear-off or a layover (we'll explain the difference)
Decking repair if needed — and what triggers that cost
Disposal of old materials
Timeline and what to expect on install day
If a contractor gives you a number without getting on your roof, that's a red flag. The only way to know what a job actually needs is to look at it.
Step 2 Choosing your materials
Once you've agreed on the scope, you'll pick your shingles. This doesn't have to be complicated.
Most residential roofs in Louisville use asphalt architectural shingles — they're durable, widely available, and come in enough colors and profiles to match almost any home style. We work with Owens Corning who offers strong warranties and consistent quality.
For a Louisville home specifically, here's what actually matters when choosing a shingle:
Wind rating — we get real weather here. Look for shingles rated for 130 mph or higher
Algae resistance — the humidity means algae streaking is common. Most quality shingles have it built in
Warranty — manufacturer warranty on the shingle itself, plus the installer warranty on labor
We'll walk you through the options and give you our honest recommendation based on your home, your budget, and what will hold up best long term.
Step 3 The day of installation
This is the part people are most curious about. Here's what a typical install day looks like.
Arrival and setup:
The crew arrives early — usually between 7 and 8am. They'll set up tarps around the perimeter of your home to catch debris and protect your landscaping. A dumpster or trailer will be positioned nearby for the old materials.
Tear-off:
Old shingles come off first. This is the loudest part of the day. It's also when we get our first real look at the decking underneath — more on that below.
Decking inspection and underlayment:
Once the shingles are off, we inspect every square foot of the decking for soft spots, rot, or water damage. Solid decking gets cleaned up and prepped. Damaged sections get replaced before anything goes back on top. Then we install the underlayment — the waterproof layer that sits between the decking and the shingles.
Shingle installation:
Shingles go on from the bottom of the roof up, overlapping in a pattern that directs water away from the structure. Flashing gets installed or replaced around chimneys, vents, skylights, and valleys. Ridge cap goes on last.
Timeline:
Most standard residential roofs are done in a single day. Larger homes, complex rooflines, or jobs with significant decking repair may run into a second day. We'll tell you upfront if that's likely.
You don't need to be home for the installation. Most homeowners go to work and come back to a finished roof. We just need access to the yard and to know where the electrical meter and any fragile landscaping is.
A few practical things to plan for:
It will be loud. If you work from home or have young kids napping, plan accordingly
Keep pets inside or make arrangements — open gates and nail debris don't mix well
Move vehicles out of the driveway if possible
Take down any hanging items on exterior walls — the vibration is real
Step 4 What happens if there's hidden damage
This is the question that makes homeowners nervous, and it's a fair one.
Sometimes we pull shingles and find decking that's been holding water for years. Soft spots, delamination, rot that wasn't visible from above. When that happens, we stop and call you before we do anything.
We'll show you what we found, explain what needs to happen, and give you the cost to fix it before we proceed. You never get a surprise charge after the fact.
Decking repair is typically priced per sheet of plywood replaced. It's not a massive cost on its own, but it's worth knowing it can come up — especially on older homes or roofs that have had previous work done over damage rather than fixing it properly.
Step 5 Cleanup and final walkthrough
When the last ridge cap goes on, the job isn't done.
We run a magnetic sweeper around the entire perimeter of your home to pick up nails. We clear debris from your gutters, yard, and driveway. The dumpster or trailer goes with us.
Then we do a final walkthrough with you — or send you photos if you weren't home — so you can see the finished product and ask any questions before we leave.
What to look for on your end:
Clean, even lines along the ridge and rake edges
Consistent shingle alignment — no lifted corners or visible gaps
Flashing sitting flush around all penetrations
Gutters clear and properly reattached
Yard and driveway free of debris
A finished roof should look like nobody was ever there — except the roof looks completely different. That's the goal.
The short version
Inspection and estimate. Material selection. One day of installation — loud but fast. Cleanup and walkthrough. Done.
Most homeowners tell us afterward that it was less disruptive than they expected. The anticipation is usually worse than the day itself.
If your roof is 15 years or older, or you've had hail or wind damage this season, it's worth knowing where you stand before you're dealing with a leak.
No pressure, no pitch. We'll tell you what we see and let you decide what to do with it.
Shielded Construction · Residential exteriors · Louisville, KY · Roofing · Siding · Gutters · Fascia
