Roof Lifespan by Material in Southern California

This page compares coverings for a new roof. Whether the roof you have is near its end is a separate question, covered in how much life is left in your roof, signs you need a new roof and roof repair or replace; which covering suits the house by slope, framing and fire zone is in choosing a roofing material in Southern California.

HUD lists clay and cementitious barrel tile; Fannie Mae lists only 3-tab shingles and puts slate, clay and concrete tile in one row; NAHB's table says "lifetime" for clay and concrete tile, and its text puts slate, copper and clay or concrete roofs at over 50 years.

How to read the table:

• They're budgeting averages, not forecasts for one roof. Fannie Mae calls its figures standardized averages and tells assessors to weigh maintenance, environment and geography when they judge a component's remaining life. HUD lets an assessor enter a different remaining life with an explanation. NAHB notes that a roof's life depends on local weather, how it was built and designed, material quality and maintenance.
• None of them is local. They don't change for the coast, the valleys or the high desert; the sections below cover what does.
• NAHB's figures are the oldest. NAHB itself calls them a general guideline and says not to make buying decisions on them alone.
• Where the tables disagree, the range is the answer. On tile and slate they differ by 20 years or more, on metal by 10; we haven't averaged them or added numbers of our own.

Asphalt shingles: the sun

Asphalt hardens and turns brittle as it oxidizes, and sunlight drives it. Researchers at Lawrence Berkeley and Oak Ridge National Laboratories explain that a shingle's granules are there to absorb ultraviolet light before it reaches the asphalt, and that heat speeds up the reactions that break materials down. In their field measurements in Redding, California, asphalt shingles ran about 35°C (64°F) hotter than the air at solar noon in August. How to spot a shingle roof near its end is in signs you need a new roof.

Tile: what's under and around it

The tile itself lasts. The National Park Service puts clay tile among the longest-lived roofing materials, generally about 100 years and often several hundred, and the Tile Roofing Industry Alliance says a clay or concrete tile roof can reasonably be expected to outlast the building. What ends a tile roof is usually the rest of it: writing about historic clay tile roofs, the Park Service notes that while the tiles themselves deteriorate mostly from frost, a clay tile roof most often fails because its fastening system breaks down, and worn flashings, valleys and gutters can bring it down too. Under the tile, the underlayment keeps the water out, and it has no single lifespan; when to replace tile roof underlayment covers how a roofer tells.

Metal: salt air

On steel, the metallic coating and the paint are what hold off corrosion, and salt air is hard on both. Metal Sales, for one, warrants its Galvalume steel against rusting through for 45 years and its PVDF paint film for 45 years, but it treats the area within 1,500 feet of salt water, just under 0.3 mile, as a corrosive environment both warranties exclude. On exposed-fastener panels the screws need attention of their own; see standing seam vs exposed-fastener metal roofs.

Flat and low-slope roofs: the shortest lives

Membranes and built-up roofs have the shortest lives among the coverings in the tables: 10 to 20 years in HUD's and Fannie Mae's. Single-ply membranes are made of polymers such as EPDM, PVC and TPO, and the Berkeley and Oak Ridge researchers describe how ultraviolet light breaks down the plastics used in roofing. Whether a coating can stretch a flat roof's life is covered in flat roof repair, coating or replacement, and the systems themselves in flat roof options in Los Angeles.

Wood shakes: fire rules first

The tables give wood shakes and shingles 25 to 30 years. If the house is in a Fire Hazard Severity Zone, the fire rules come first: where California's wildfire building code applies, the roof has to be a Class A assembly (WUI roofing requirements).

• Heat. A roof in Woodland Hills sees more than 100 days a year at 90°F or above; one near the airport in Westchester sees about five. The national laboratories' work ties heat to faster breakdown of roofing materials, and the 20-year figure doesn't change with it.
• Frost. The main threat to clay tile itself, by the Park Service's account, is all but absent near the coast and in the central basin: no days a year at Los Angeles International Airport or Downtown Los Angeles, and under half a day at Burbank. Woodland Hills, in the west San Fernando Valley, averages about 11 days a year with a low at or below freezing, and Palmdale about 54.
• Salt air. The normals don't measure it. Within 1,500 feet of salt water, Metal Sales' warranties don't apply, so read any metal roof's coastal terms before choosing it; what salt air does to nails, flashing and gutters is in coastal roofing and salt air.

"Lifetime" follows ownership, full coverage is short, and the tile warranties stop at the tile. How proration and the contractor-registered system warranties work is in roofing warranties, explained.

Solar. The U.S. Department of Energy expects a solar array to last about 25 to 35 years. If the roof under it gives out first, the panels come off and go back on: on a Burbank house in 2025 we took a working array off, the roof was replaced from the deck up, and the same modules went back on new attachments three weeks later (the Burbank case). If panels are likely within a few years, choose the covering with them in mind and re-roof first.

Insurance. Insurers count years too. In the underwriting rules the San Francisco Chronicle compiled in May 2026, limits for shingle roofs ranged from 15 to 25 years, and tile and slate were often exempt; see roof age and home insurance.

Selling. If you may sell within a few years, the 2025 Cost vs. Value report estimated that replacing an asphalt shingle roof in Los Angeles recouped 73.6% of its cost at resale and a metal roof 48.7%; see does a new roof add home value?

Tile on a later roof. Replacing the underlayment under tile means lifting the tile and laying it back, and under Eagle's current terms a complete lift-and-relay of more than 3 squares voids its lifetime warranty. Ask about the tile warranty before that work, and see repair, relay or new tile.

• Lifespans: HUD's standard table of estimated useful life for capital needs assessments (Attachment A to Mortgagee Letter 2016-26), Fannie Mae's Form 4099.F (August 2019), which its July 2026 assessment instructions still use, and NAHB's Study of Life Expectancy of Home Components (February 2007). The roofing rows are copied as published.
• Climate: NOAA's 1991–2020 annual normals for eight stations, retrieved from the National Centers for Environmental Information on October 6, 2026.
• Warranties: the manufacturers' current warranty documents and product pages, read on October 6, 2026. MCA's is the sample it publishes.

Code sections, rules and figures on this page come from the primary sources below. Codes, local requirements and product terms change; each was verified October 8, 2026.

1. U.S. Department of Housing and Urban Development, Mortgagee Letter 2016-26, Attachment A: Standard Table of Estimated Useful Life
2. U.S. Department of Housing and Urban Development, Estimated Useful Life table for the CNA e-Tool
3. Fannie Mae, Form 4099.F, Appendix F: Estimated Useful Life Tables, August 2019
4. Fannie Mae, Form 4099, Instructions for Performing a Multifamily Property Condition Assessment, July 2026
5. National Association of Home Builders and Bank of America Home Equity, Study of Life Expectancy of Home Components, February 2007 (archived copy)
6. National Park Service, Preservation Brief 30: The Preservation and Repair of Historic Clay Tile Roofs
7. Tile Roofing Industry Alliance, FAQs
8. Paul Berdahl, Hashem Akbari, Ronnen Levinson and William A. Miller, Weathering of Roofing Materials – An Overview, Lawrence Berkeley National…
9. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020
10. Owens Corning, Standard Product Limited Lifetime Warranty (shingles and accessories)
11. Eagle Roofing Products, Transferable Limited Lifetime Product and Limited 10 Year Replacement Cost Warranty, revised March 4, 2025
12. Maruhachi Ceramics of America (MCA), 50-Year Limited Warranty (sample)
13. Metal Sales, AZ55 Galvalume Warranty
14. Metal Sales, PVDF System Warranty
15. Westlake Royal Building Products, TileSeal HT underlayment
16. U.S. Department of Energy, Solar Energy Technologies Office, Photovoltaics End-of-Life Action Plan, March 2022
17. San Francisco Chronicle, Here are exactly what roof types California's 20 largest insurers won't cover, May 24, 2026