What is tile?

What this means for your home project

1. Read the proposed roof-tile product’s local wind-zone rating and include that rating in your project notes. Source: U.S. Department of Energy, Building America Solution Center, read 2026-11-06.
2. For an asphalt-to-tile change, request an engineer’s assessment stating whether structural strengthening is needed. Source: U.S. Department of Energy, Building America Solution Center, read 2026-11-06.
3. Ask for a written replacement scope identifying any proposed changes to deck attachment, framing connections, underlayment and flashing. Source: U.S. Department of Energy, Building America Solution Center, read 2026-11-06.
4. Ask the local building department whether your roof replacement needs a permit; record the response before work. Source: U.S. Department of Energy, Building America Solution Center, read 2026-11-06.

Are there tile roofs available that don’t look Spanish?

Roof tile comes in flat and interlocking profiles as well as curved ones. DOE (read 2026-11-06) lists “round, curved, flat, interlocking”; clay and concrete both offer multiple colors and styles, so a barrel-shaped appearance is only one choice. (source)

“Clay and concrete roof tiles are available in a wide variety of colors, styles, and profiles (e.g., round, curved, flat, interlocking).” (source)

How long do tile roofs really last?

Roof tile, particularly clay, has a life expectancy that “can exceed 100 years”, according to DOE (read 2026-11-06). Longevity does not mean impact resistance: falling tree branches can break brittle tiles. Keep those two properties separate when considering an existing roof. (source)

“Tile roofing, particularly clay, is relatively expensive but also has a long life expectancy that can exceed 100 years.” (source) “Although durable, tiles can be brittle and susceptible to breakage from a heavy impact, such as falling tree branches (Figure 2).” (source)

Won’t a building have to be stronger to support tile roofs?

A switch from asphalt shingles to roof tile may involve structural reinforcement. DOE (read 2026-11-06) describes tile as “approximately three times heavier than asphalt roofing” and calls for consulting an engineer about whether reinforcement is necessary. That potential work belongs in the project scope. (source)

“Tiles are heavy, approximately three times heavier than asphalt roofing, so roof framing and sheathing must be structurally adequate to support the weight (If replacing asphalt shingles, consult with an engineer to see if structural reinforcement is necessary).” (source)

Are homes with tile roofs fireproof?

A tile roof’s fire classification depends on its roof assembly, including the supporting deck and underlayment. DOE (read 2026-11-06) says “Class A has the highest resistance to fire” and identifies UL 790 or ASTM E108 testing. Some clay and concrete tiles need additional fire-resistant layers to qualify. (source)

“Roof coverings have fire classifications of Class A, Class B, or Class C or are unclassified.” (source) “Class A has the highest resistance to fire, and unclassified have the least.” (source) “Class A, B, and C roofing must be tested in accordance with UL 790 (Fire Tests of Roof Coverings) or ASTM E108 (Standard Test Methods for Fire Tests of Roof Coverings).” (source) “Some clay or concrete tiles require a noncombustible roof deck or fire-resistant underlayment for the roof assembly to qualify as Class A.” (source)

What about tile roof maintenance?

Historic clay tile roofs can need fastening repairs even when the tiles remain reusable. The National Park Service (read 2026-11-06) notes failures in “the fastening system” rather than the tiles themselves. Damaged tiles need prompt replacement; deteriorated supports may require removing and relaying sound tiles. (source)

“Often , it is the fastening system used to secure the tiles to the sheathing that fails and needs to be replaced rather than the tiles themselves.” (source) “When the fastening system has deteriorated, or the roofing support structure has failed, clay tiles can be removed relatively easily, necessary repairs can be made, and the historic tiles can be re-laid with new corrosion-resistant nails or hooks.” (source) “Broken or damaged tiles should be replaced promptly to prevent further damage to neighboring tiles or to the roof structure itself.” (source)

Can a do-it-yourselfer install a tile roof?

Historic clay roof-tile repair calls for experienced roofers, according to the National Park Service (read 2026-11-06): it is “not a job for amateurs”. Replacing one broken tile can damage neighboring tiles, so the work involves protecting the existing covering as well as making the repair. (source)

“Repair of historic clay tile roofs is not a job for amateurs; it should be undertaken only by professional roofers experienced in working with clay tile roofs.” (source) “The most difficult aspect of replacing a single broken clay roof tile is doing so without breaking neighboring tiles.” (source)

Sources

• Clay or Concrete Tile Roofs — U.S. Department of Energy, Building America Solution Center; read 2026-11-06.
• Preservation Brief 30: The Preservation and Repair of Historic Clay Tile Roofs — National Park Service; read 2026-11-06.