How to Tell if Your Roof Needs Repair or Replacement
With a phone at the curb and a flashlight in the attic, you can check your roof yourself. Then read what each sign means before anyone prices the job.
Written by the Aceves Home Remodeling team · · Last reviewed
A remodeling contractor based in Rio Grande City, working across the four Valley counties. The team is led by David Aceves, whose background is building custom homes, from the slab and the framing to the finish work.
Repair when the damage sits on one slope, the decking is sound and the roof has years left. Replace when leaks return in different rooms, the shingle is past twenty years, or the decking is soft. In the Valley heat, age and decking condition decide this more often than the leak itself.
What can you see from the ground without climbing anything?
Start at the curb with your phone and the camera zoomed in. Walk all four sides of the house. Photograph each slope straight on, not at an angle.
Look for tabs that are missing, curled, or lying against the wrong plane. Look for dark patches where the granules are gone. Both of those read clearly from the street.
Check the gutters and the driveway for granules. A few after a storm is normal on a new roof. A steady pile off a fifteen year old roof means the surface is leaving.
Then read the ridge line from across the street. It should look like a straight edge. A sag or a dip in that line points at framing, not at shingle.
What does the attic tell you that the roof cannot?
Go up into the attic on a bright, dry afternoon with a flashlight. Turn the flashlight off for a minute. Daylight coming through the decking is a hole you can see from inside.
Then run the light along the underside of the decking. Dark rings, streaks and stains mark water that already came through. Damp wood looks and smells different from an old dry stain.
Press the decking with your hand between the rafters. Sound wood feels firm. Wood that flexes or feels spongy has been wet long enough to lose strength.
Check the insulation under every vent, pipe and chimney. Matted or discolored insulation sits under the most common leak points on a Valley roof. Those details fail years before the open field of the roof does.
Which signs mean a repair, and which mean a replacement?
One sign by itself rarely settles the question. Two signs on the same roof usually do. This table pairs each sign with what it normally means.
Age changes the reading of every row. The same three missing shingles mean a quick repair at year 8. At year 22 they mean the roof is finished.
Where the problem sits changes it too. A leak at a pipe boot is a detail failure and stays a repair. A leak in the open field of the shingle is the roof giving up.
| What you see | What it usually means | Repair or replace |
|---|---|---|
| Three or four shingles gone from one slope after wind | Wind lifted the tabs in one spot | Repair, if the rest of the roof is sound |
| Granules filling the gutters on a roof past 15 years | The shingle surface is wearing out everywhere | Replace, and plan it before spring |
| One leak over one room, always in the same place | A flashing, a boot or a valley has failed | Repair, then recheck the other penetrations |
| Leaks showing up in two or three separate rooms | The underlayment is done, not one detail | Replace |
| Decking that flexes underfoot or under your hand | Water has been sitting in the deck | Replace, with decking priced as its own line |
| Round bruises across every slope after hail | Impact damage over the whole roof | Replace, and open the claim first |
| Rusted screws and washers on exposed fastener metal | The fasteners aged out before the panels did | Repair, changing screws and washers |
| A sag or a dip along the ridge line | A framing or decking problem under the surface | Stop and have it looked at before anything else |
How old is too old for a roof in Valley heat?
Surface temperature on a Valley roof climbs past 160 degrees in summer. Asphalt ages faster under that heat than it does north of here. The number printed on the wrapper is not the number you get.
Salt air works on the other end of the roof. In Cameron and Willacy counties, fasteners and flashing corrode before the panel wears out. Coastal roofs often fail at the screws first.
Age by itself is not a reason to replace a dry, sound roof. Age is the reason to stop spending on repairs for a roof that is neither.
Plan by the calendar, not by the leak. A roof chosen in February gets installed before hail season. A roof chosen after the storm competes with every other roof in the county.
| Material | Life inland | What fails first | Start planning at |
|---|---|---|---|
| Three-tab shingle | Shorter than architectural under the same sun | Tabs crease and granules go | Year 12 |
| Architectural shingle | 18 to 25 years inland | Granule loss across the whole field | Year 15 |
| Exposed fastener metal | 25 to 30 years | Screws and rubber washers, around year 12 | Year 20, with a screw change at 12 |
| Standing seam metal | 40 to 50 years | Flashing and penetrations, not the panel | Year 30 |
| Clay or concrete tile | 50 years or more | The underlayment beneath the tile | Year 25, for the underlayment |
When does repairing the same roof twice cost more than replacing it?
Repairs are worth it while they buy years. A flashing fixed at year 10 on a 20 year roof buys a decade. That is money well spent.
The math turns when repairs start buying months. Two or three service calls in one year is a pattern. The pattern is the answer, not any single invoice.
Three things decide it together: roof age, how many slopes have failed, and decking condition. When two of the three are bad, patching stops paying. One bad out of three is usually still a repair.
There is a second cost that never appears on a roofing invoice. Water sitting in a deck ruins insulation, drywall and paint. Those repairs run past the cost of the roof detail that let the water in.
What should a real roof inspection hand you in writing?
An opinion called out from the driveway is not an inspection. Ask for the roof to be walked, photographed and written up. You should end up with a document you can still read next year.
The photos matter more than the words. Dated pictures of each slope, each penetration and the attic give you a baseline. If you file a claim later, that baseline separates storm damage from age.
A good report also says what is still fine. A report that finds a problem everywhere is selling, not inspecting.
| Item | Why it matters |
|---|---|
| Dated photos of every slope | Proves the condition of the roof on a specific day |
| Close photos of each flashing, boot and valley | Most Valley leaks start at a penetration |
| Attic photos of the underside of the decking | Shows water that has not reached a ceiling yet |
| Decking condition, area by area | Decides whether the job can be a repair at all |
| Remaining service life, stated as a range | Lets you plan instead of react |
| Repair scope and replacement scope, kept separate | Lets you compare both paths on one document |
What questions make two roof estimates comparable?
Two estimates on the same roof can differ because the work inside them differs. Ask every contractor the same short list. Then the gap between the numbers stops being a mystery.
Ask how many squares they measured and how they measured them. Ask whether tear-off down to the decking is included. Ask what happens, in writing, when rotten decking turns up.
Ask which underlayment, drip edge and pipe boots are in the price. Ask whether the ridge vent is replaced or reused. A cheap estimate usually gets cheap by leaving those lines out.
Ask who pulls the permit in cities that require one. Ask what the workmanship warranty covers and for how long. Ask for all of it on one page, priced line by line.
- How many squares did you measure, and did you measure or estimate from the ground
- Is a full tear-off down to the decking in this price
- How is replacement decking handled, and what does the allowance cover
- Which underlayment, drip edge, pipe boots and flashing are included
- Is the ridge vent new, and who checks the attic airflow
- Who pulls the permit where the city requires one for a re-roof
- What does the workmanship warranty cover, for how long, and in writing
- What is the cleanup routine at the end of each day, not just at the end
How does a hail claim change the repair or replace decision?
Hail moves part of the decision into your policy. Your carrier decides what it pays, based on what the adjuster finds. So the order of the steps matters.
Document first, open the claim second, and put a contractor on the roof third. A repair done before the adjuster visits can weaken the claim. Damage already covered up is hard to prove.
Valley hail arrives with the spring line storms, March through May. Wind comes back with hurricane season, June through November. A roof inspected before March gives you a dated baseline for both.
A remodeling contractor based in Rio Grande City, working across the four Valley counties. The team is led by David Aceves, whose background is building custom homes, from the slab and the framing to the finish work.
Last reviewed: · More about Aceves Home Remodeling
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Before you call
Can I replace just one slope instead of the whole roof?
Sometimes, on a roof with clearly separate planes and real life left in it. The new shingles will not match the weathered ones. On a roof past fifteen years, one slope usually buys less time than it costs.
How long can I wait once I know the roof needs replacing?
Until the next storm season, if the roof is still dry and the decking is sound. Plan the work for winter or early spring. Waiting through a hail season with a worn roof is how a repair turns into a ceiling.
Does a roof leak always show up as a stain on the ceiling?
No. Water can travel along a rafter and soak insulation for months first. That is why the attic check matters. By the time a ceiling stains, the decking above it has usually been wet a long time.
Is an older roof still insurable in the Rio Grande Valley?
Every carrier sets its own rules on roof age, material and condition. Ask your agent to answer in writing for your policy. Keep that email with your renewal papers, because the answer changes by company.
Do I have to be at the house for the roof inspection?
It helps, but it is not required. David can walk the roof and the attic and send you the photo file the same day. Being there means you see the problem on the screen while the ladder is still up.
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