Tile Roofing: Cost, Lifespan, Pros & Cons

Roof tile is a family of products, not a single one. The two main materials are clay, which is shaped and fired in a kiln, and concrete, which is a mix of cement, sand and water that is molded under pressure and cured. Both are hard, noncombustible and very durable. Clay generally lasts longer and keeps its color better. Concrete is less expensive, more uniform, and makes up most of the tile installed on new homes in Texas today.

Tiles come in a few broad profiles. High-profile tile includes barrel (also called mission), which uses curved pan and cover pieces, and S-tile, sometimes called Spanish tile, which combines the pan and cover into one S-shaped piece. Medium-profile tile has a gentler wave. Flat or low-profile tile lies nearly flat and can be made to look like slate, wood shake or a clean modern plane.

The most important thing to understand is that tile is not the main waterproof layer. Tiles shed most of the water and shield the roof from sun and impact, but the underlayment beneath them is what keeps the house dry. Tiles are fastened to the deck or to wooden battens with nails, screws, clips or foam adhesive, depending on the product, the slope and the local wind requirements.

Tile is heavy. A finished tile roof weighs several times what an asphalt shingle roof weighs, so the roof framing has to be designed or checked for that load. Lightweight concrete tiles exist for homes that cannot carry full-weight tile.

Tile has a strong, textured look that reads from the street. The deep curves of barrel and S-tile cast shadows that give a roof depth, which is why they are tied so closely to Spanish Colonial, Mission Revival and Mediterranean homes. Those styles are common in San Antonio, Austin, the Rio Grande Valley and many master-planned communities across the state.

Flat and low-profile tiles are more versatile. A flat concrete tile can look like slate on a traditional home, or like a smooth, modern surface on a contemporary one. Some flat tiles are textured to imitate wood shake without the fire risk. Medium-profile tiles sit in between and are a common choice on Tuscan and transitional homes.

Color options are wide. Clay ranges from natural terracotta reds and buff to glazed blues, greens and blacks, and its color comes from the clay and the firing, so it stays put for decades. Concrete comes in nearly any color, often with blends of two or three shades on the same roof to look more natural. Through-body color holds up better than a surface coating, which can wear and fade over time.

Tile is not a natural match for every house. On a simple ranch or a colonial with a low-slope roof, heavy barrel tile can look out of place, and the structure may not be built for it. Many HOAs specify allowed tile colors and profiles, so check those rules before you fall for a sample.

Tile sits in the upper middle to high end of residential roofing costs. It costs clearly more than asphalt shingles and is usually in a similar range to or above standing-seam metal. Concrete tile is generally the less expensive of the two tile materials, and clay, especially specialty or glazed clay, costs more. Natural slate usually costs more than both.

The tile itself is only part of the price. Labor is a large share because tile is heavy to move and slow to lay, and every hip, ridge, valley and wall has to be cut and finished by hand. Steep roofs, complex rooflines with many hips and valleys, and two- or three-story homes all add time and safety equipment. Roof size, measured in squares, sets the baseline.

Other things that move the price include tearing off the old roof and hauling it away, replacing rotted or thin decking, and upgrading the underlayment. If you are switching from shingles to tile, an engineer may need to confirm the framing can carry the weight, and reinforcement adds real cost. Flashing, battens, ridge and hip trim, eave closures, bird stops and fastening systems for wind all add up. Permits, local labor rates, and in coastal counties the windstorm inspection process also play a part.

If you already have a tile roof and the tiles are in good shape, ask about an underlayment replacement where the existing tiles are lifted, stored, and reinstalled over new underlayment. It is usually less expensive than new tile and is the normal way to renew an aging tile roof.

Tile itself is one of the longest-lasting roofing materials. Clay tile commonly lasts 50 to 100 years or more, and concrete tile commonly lasts 40 to 50 years or more. There are old clay roofs in Europe and the American Southwest that have lasted far longer.

The underlayment is a different story. Traditional felt underlayment under tile often needs replacing after roughly 20 to 30 years, and in hot climates it can dry out and crack sooner. Modern synthetic and self-adhered underlayments are designed to last longer. When people talk about a tile roof needing replacement, they often mean the underlayment, not the tiles.

Things that shorten tile roof life include foot traffic from satellite installers and other trades, poor flashing at walls and chimneys, debris that dams water in valleys, corroded fasteners, and hail strong enough to crack tiles. Things that extend it include a high-quality underlayment, corrosion-resistant fasteners, good valley and flashing work, proper ventilation, and replacing broken tiles promptly.

Warranties come in two parts. The material warranty from the tile manufacturer is often long, commonly 50 years or a limited lifetime, but it covers manufacturing defects and is usually prorated or limited in what it pays. The workmanship warranty from the roofer covers installation errors and typically runs from a couple of years to ten years, sometimes more. Ask for both in writing, and ask separately about the underlayment warranty.

Tile handles heat well for two reasons. First, it has thermal mass: it absorbs heat slowly during the day and releases it slowly, which softens the peak heat that reaches the roof deck. Second, most tile profiles leave an air space between the tile and the deck. Curved tiles naturally create channels, and tiles installed on raised battens add even more space. Air moving through that gap carries heat away before it reaches the attic.

Color matters too. Light-colored and specially formulated cool-roof tiles reflect more sunlight and stay cooler on the surface. The Cool Roof Rating Council publishes measured reflectance and emittance ratings for many roofing products, and some cities and energy codes reference those ratings. Dark tile still benefits from the air gap and mass, but it absorbs more heat than a light color.

The tile is only one part of the picture. Attic insulation, attic ventilation, radiant barriers and air sealing usually have as much effect on cooling bills as the roof covering. A tile roof over a poorly ventilated attic will still produce a hot attic. If energy is a priority, ask your roofer how intake and exhaust ventilation will work with the tile and whether a raised batten system is an option.

In practice, homeowners moving from dark asphalt shingles to tile often notice a cooler attic, but the size of the difference depends on the color, the profile and the rest of the house. Be skeptical of anyone who promises a specific percentage savings.

Tile needs less routine care than many roofs, but it is not maintenance-free. Plan on a professional inspection every year or two and after any major hail or wind event. The roofer should look for cracked, slipped or missing tiles, loose ridge and hip pieces, mortar that has cracked or fallen out, flashing that has pulled away, and debris built up in valleys and behind chimneys.

Broken tiles should be replaced promptly. A single cracked tile exposes the underlayment to sun and water, and the underlayment is what actually keeps the house dry. Keep a few spare tiles from the original installation stored in the garage, because matching color and profile years later can be difficult, especially if the product line has been discontinued.

Walking on tile is the most common way tile gets broken. Tiles can crack under a person's weight if stepped on in the wrong place. A trained tile roofer knows where to step, usually on the lower part of the tile where it is supported by the tile below, and uses pads or walk boards. Ask satellite, solar, HVAC and gutter installers to use someone who knows tile, or to let your roofer handle the access.

Avoid pressure washing at high pressure, which can damage surface coatings on concrete tile and force water under laps. Avoid sealers unless the manufacturer recommends them. Clear leaves and debris from valleys and gutters. When the underlayment reaches the end of its life, plan for a lift-and-relay job rather than waiting for leaks to show up inside.

A tile installation starts with a structural check. If the home already had tile, the framing was likely designed for it. If you are switching from shingles or metal, the roofer or an engineer should confirm the rafters or trusses can carry the extra weight. Next comes tear-off of the old roof and inspection of the decking, with damaged or thin sheathing replaced.

The underlayment goes down next, and this is where quality matters most. Many tile roofs now use a self-adhered or high-grade synthetic underlayment, sometimes over a base layer. Metal drip edge, valley metal and flashing at walls, chimneys and penetrations are installed. Depending on the system, wooden or composite battens are fastened across the roof to hang and fasten the tile.

The tiles are then loaded onto the roof and spread out to distribute the weight, and laid from the eaves up in overlapping courses. Each tile is fastened according to the manufacturer and the local wind requirements, using nails, screws, wind clips or approved foam adhesive. Hips and ridges are finished with trim tiles set on a ridge support, using mortar or a dry ventilated ridge system. Eave closures or bird stops keep birds and pests out.

A typical single-family home takes roughly one to three weeks, depending on size, complexity, weather and whether structural work is needed. Signs of a good install include neat, consistent courses, clean cuts at hips and valleys, open valleys kept clear, proper flashing rather than heavy reliance on sealant, and a roofer who follows a recognized installation manual such as those published by the tile industry and the manufacturer.

Clay and concrete tile are noncombustible, and tile roof systems typically achieve a Class A fire rating, the highest rating for roof coverings. That can matter for insurance and in areas near brush or wildland, including parts of the Texas Hill Country.

Hail is more complicated. Tile resists hail better than many materials but can crack under large stones. Impact resistance is tested under UL 2218, which rates products from Class 1 to Class 4. Some concrete and clay tile products have achieved Class 4 ratings, but many standard tiles have not been rated or carry a lower class. In Texas, many insurers offer premium discounts for roofing rated Class 4, so ask for the specific product's rating in writing and check with your insurer before you choose.

Insurers also look at the age of the roof and whether replacement tile is still available. Some policies limit coverage for cosmetic damage or for older roofs, so read the roof section of your policy carefully.

For resale, a tile roof in good condition is usually viewed as a long-life, quality feature, especially in neighborhoods where tile is the norm. Buyers and appraisers tend to value it more than an aging shingle roof. A home inspector will still note broken tiles and may comment on underlayment age, so keeping records of inspections and any underlayment work helps at sale time.

Tile is a strong choice if you plan to stay in your home for a long time, live in a hot, sunny climate, want a Class A fire-rated roof, and like the look of Mediterranean, Spanish or Tuscan styles, or a clean flat tile on a modern home. It also makes sense if your home already has tile, since the structure is built for it and a lift-and-relay can be an efficient way to renew it.

Tile also suits homeowners who value low routine maintenance and are willing to keep foot traffic off the roof. In neighborhoods where most homes have tile, and in HOAs that require it, tile is often the practical choice.

Tile is a weaker fit if your roof framing was not designed for the weight and reinforcement is not practical, if your roof is very low-slope, or if you expect frequent roof access for solar work or antennas. It may not be the best value if you plan to sell within a few years, since you may not recover the higher up-front cost.

If you live in a hail-prone area and want the best chance of avoiding claims, compare impact-rated tile with Class 4 metal or Class 4 shingles before deciding. Get quotes from local roofers who install tile regularly and can show you finished tile jobs nearby.