Clay and concrete roof tile look alike from the street, but they are made differently, weigh differently, and age differently. Both can last 50 years or more in the Phoenix sun, and on both, the layer underneath - the underlayment - usually wears out long before the tile does, often at 15 to 25 years. All Valley Roofing, based in Tempe, repairs both kinds of tile roof and notes which one you have on every Free Roof Report, because it changes how a repair is planned.
How to tell which tile you have
You can often tell from the ground or from a spare tile in the garage:
- Clay tile is made from fired clay. It often comes in red, terracotta, or earthy tones, and the color usually runs all the way through the tile. Many clay roofs use a curved barrel or "S" shape.
- Concrete tile is made from cement and sand. It comes in many colors and shapes, including flat and low-profile styles, and the color is often on the surface.
Both are common across the East Valley. If you are not sure which you have, the report will tell you.
How they differ
Weight
Concrete tile is usually heavier than clay. That matters mostly for how tile is handled, lifted, and stacked during work on the roof.
Color over time
Clay tends to hold its color well because the color is fired in. Concrete tile color can fade on the surface over many years, especially on the south and west slopes that take the most sun.
Breakage
Both can crack under a misplaced foot, and clay can be more brittle. That is one reason you should never walk on a tile roof yourself. You could fall, and you could break tile.
Finding replacement pieces
When a few tiles break, the goal is to replace them with the same shape and a close color. That can be harder with older roofs, because some tile shapes and colors are no longer made. Keeping a few spare tiles from past work helps.
What fails first on both
On both clay and concrete roofs, the tile is not the main waterproof layer. The underlayment under it is. Rain that gets past the tile runs down that layer and off the roof.
The hot sun hits south and west slopes the most, and those slopes often wear out first. Many tile roofs from the late 1990s and 2000s still have their first underlayment, which puts them in the age range where it can fail - even when the tile on top looks fine.
How repairs work on each tile type
The repair paths are the same for both:
- Small repairs: replace a cracked or slipped tile, or fix a pipe boot, flashing, or sealant
- Underlayment replacement: lift the sound tile, replace the worn layer, and put the same tile back
- New roof: when too much tile is cracked, flaked, or no longer made
What changes is handling. Clay can need extra care when it is lifted and stacked. Concrete is heavier to move. Either way, sound tile can often go back on the roof. Read more in tile lift and relay vs replacement.
Which tile is better?
Neither is better for every home. Both can last for decades in Arizona. HOA rules, the look you want, and what is already on the house usually decide it. If you are replacing part of a roof, the new tile should blend with what is already there.
What else gets checked
On any tile roof, we also check the small parts that cause most tile leaks: pipe boots, vent collars, flashing, sealant, and any cracked or slipped tile nearby. Everything goes on the report, so you can choose what to fix now and what can wait. See roof repair and leak diagnosis.
FAQ
Can clay and concrete tile be repaired the same way?
Mostly, yes. The steps are the same. Clay can need more care in handling, and older shapes of either type can be hard to find.
Does tile type change how long my underlayment lasts?
The underlayment often lasts 15 to 25 years under either kind of tile. Sun and roof type can change that time.
Can I keep my tile if I need new underlayment?
Often, yes. Sound tile can be lifted, stacked, and put back over a new layer. See tile roofing.
Find out what is on your roof
Request a Free Roof Report from All Valley Roofing. You get photos of the tile, valleys, openings, and flashing, with plain-language notes on what needs work now and what can wait. Roughly half the roofs we check do not need a new roof yet.
Next step: Free Roof Report
No cost. No obligation. Yours to keep. Tempe-based All Valley Roofing documents whether you need routine maintenance, localized repair, underlayment work, or a full system. Prefer a leak first? Go to roof repair.