Manufacturer literature will tell you an asphalt roof lasts 30 years. In North Texas, plan on less. Not because the product is bad, but because the conditions here are genuinely punishing in ways the national average does not capture.
Realistic lifespans here
Architectural asphalt shingles: typically 20 to 25 years in Texas, and frequently less in the hail corridor. Storm damage, not age, is what usually ends them.
Class 4 impact-resistant asphalt: similar baseline lifespan, but a much better chance of reaching it, because the failure mode that kills most roofs here is hail rather than wear.
Standing seam metal: 40 to 60 years. Metal dents under large hail without losing function, though cosmetic damage is a real consideration.
Tile: 50 years or more for the tile itself. The underlayment beneath it typically needs replacing well before the tile does, which people forget when budgeting.
What shortens it
Sun. Months of direct Texas heat bake the volatile oils out of asphalt, leaving shingles brittle. South and west-facing slopes almost always age faster.
Hail. The obvious one. A single significant event can end a roof that had a decade left.
Poor ventilation. This is the quiet one. An under-ventilated attic superheats and cooks the shingles from below, and can void a manufacturer warranty. It is also one of the most common defects we find on roofs installed cheaply.
Layering. Installing new shingles over old ones traps heat and hides decking problems. It is cheaper on day one and costs more over the life of the roof.
Signs yours is nearing the end
End-of-life indicators
0 of 8Planning ahead beats reacting
A roof replaced on your schedule is a very different experience from one replaced after water comes through a ceiling. If yours is in the 18-to-20-year range, get an inspection now so you know what you are working with and can budget for it — even if the answer is that you have a few good years left.