Roofing, explained
How long a roof lasts in Atlanta.
The number on the bundle is a manufacturer's rating, not a promise about your house. What decides the real figure here is heat, ventilation, and what the weather does in between.
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What a rating is
A rating is a test result, not a forecast.
When a manufacturer rates a shingle at 25 or 30 years, that is what the product did under test conditions. It is a real number and it is worth comparing between products. It is not a statement about your attic, your ventilation, your trees or the summer you are about to have.
As rated, and as a rough ordering rather than a promise: architectural asphalt shingle sits at 25 to 30 years, metal well beyond that, and tile and slate longer again — slate is the longest-lived covering in ordinary use. Synthetic products carry ratings too, but the category is young enough that the long real-world record does not exist yet.
Two identical roofs on the same street can differ by a decade, and the difference is almost never the shingle. It is the ventilation underneath, the flashing at the joints, and whether a small leak got fixed in the year it started.
What shortens it
Four things that take years off a roof.
An attic that cannot breathe
Under-ventilated decking cooks from below all summer. In Georgia this is the single most common reason a roof ages faster than its rating.
Storms
Hail bruises, wind breaks the seal. Damage that never leaks can still cost the roof years.
What is growing over it
Overhanging limbs abrade the surface, drop debris in the valleys, and keep a roof damp that ought to dry out.
A leak nobody chased
Water in the decking spreads quietly. The repair is small in year one and structural by year three.
What adds years
Three things that actually help.
Get the ventilation right
Intake at the eave, exhaust at the ridge. It is cheap with the roof open and awkward once it is closed.
Keep the valleys and gutters clear
Most of what shortens a roof is water that could not leave it.
Look after a storm, not after a stain
By the time a ceiling is marked, the water has been in the decking a while. Grit at the downspouts is the earlier signal.
You might ask us
Straight answers.
Can I make my roof last longer?
Ventilation, clear valleys, and fixing a leak in the year it starts. Those three do more than anything you can buy afterwards.
Does a darker roof wear faster?
A darker roof runs hotter, which matters most for the attic under it. Ventilation does more to control that than colour does.
How do I know where mine is in its life?
Missing or lifted shingles, dark soft spots from hail, grit collecting at the downspouts, any stain on a ceiling. If you are seeing those, the walk is free.
Roofs we install
The roofs we install.
Start with a free site walk.
Send it and our phones buzz. You'll hear from a human the same day — or first thing in the morning if it's late.
Prefer to talk? 678.815.4115
Licensed Georgia general contractor · GA Lic. No. GCLT-CO000732
Earthcore Roofing is a division of Earthcore Group. All of Earthcore Roofing