How Long Does a Roof Last? Lifespan by Material and What Shortens It

An asphalt shingle roof typically lasts about 15 to 30 years, depending on the grade of shingle ⁴, while metal, tile and slate are rated to last several decades longer ¹. The National Roofing Contractors Association (NRCA) says most new roofs are designed to last about 20 years, and that the actual life depends on local climate and conditions ². InterNACHI, the home inspectors' association, gives 20 years for 3-tab asphalt shingles and 30 years for architectural shingles in its life expectancy chart ¹.

Those figures are estimates for the material under normal conditions, not a promise for any one roof. Ventilation, climate, installation and upkeep can shorten or stretch a roof's life by years. The tables below gather what trade bodies and cost surveys state for each material, and the sections after them explain what wears a roof out early.

Lifespan by material

Each source below states its own range, and they do not always agree. InterNACHI calls its chart a guideline only ¹; Fixr and This Old House publish their ranges alongside their cost figures ⁴⁵⁷.

Asphalt shingles

Fixr gives 15 to 20 years for 3-tab shingles, 25 to 30 years for architectural shingles and 30 years or more for luxury shingles ⁴. InterNACHI's chart gives 20 and 30 years for the first two ¹, and This Old House gives 30 to 35 years for asphalt shingles as a group ⁷. Heavier, laminated shingles last longer than thin 3-tab strips in every source that separates them. See architectural vs 3-tab shingles.

Metal

Fixr says metal roofs last 50 to 70 years on average, and up to about 60 years for steel, 70 for tin and 100 for zinc ⁵. InterNACHI's chart gives 40 to 80 years for metal and 70 years or more for copper ¹. See metal roof vs shingles.

Tile and slate

InterNACHI's chart puts clay and concrete roofs at 100 years or more and slate at 60 to 150 years ¹. NRCA describes clay and concrete tile as durable and says slate is considered virtually indestructible ⁸. NRCA notes that cracked, broken or missing pieces on tile and slate roofs are among the things to look for ⁹.

Wood

InterNACHI's chart gives 25 years for wood roofs ¹, while This Old House gives 30 to 50 years for wood shake ⁷.

Flat and low-slope roofs

Membrane roofs have shorter ranges. Fixr reports 20 to 30 years for TPO and PVC, up to 30 years for EPDM rubber, around 20 years for modified bitumen and 15 to 30 years for built-up roofing ⁶. InterNACHI's chart is lower for some of them: 7 to 20 years for TPO and 15 to 25 years for EPDM ¹.

What shortens a roof's life

Ventilation and moisture

The Asphalt Roofing Manufacturers Association (ARMA) says poor attic ventilation can lead to premature failure of the roofing system and to shingle buckling from movement of the roof deck ³. In cold climates, water vapor from the house can condense in the attic and rot the roof framing and decking; in summer, a hot deck can speed the aging of asphalt roofing, according to ARMA ³. ARMA says intake and exhaust should be balanced, and that continuous ventilation at the eaves and ridge works better than scattered vents ³. NRCA's view is narrower: it says ventilation helps remove moisture and prevent ice dams, especially in cold climates, but that research has not verified a significant effect of attic ventilation on the average roof surface temperature ². Either way, ventilation is worth checking whenever a roof is replaced. See roof ventilation explained.

Climate and sun

NRCA says local climatic and environmental conditions are among the factors that decide a roof's actual life ². InterNACHI notes that granule loss on asphalt shingles comes from normal weathering as the bond between the granules and the asphalt weakens, that its rate depends on shingle quality and climate, and that south- and west-facing slopes are more likely to take a beating ¹⁰. InterNACHI's life expectancy chart likewise says life varies with weather, installation, maintenance and the quality of materials ¹.

Ice dams

Ice dams form when snow melts over warmer parts of the roof and refreezes at the colder eaves, ARMA explains, and proper ventilation helps reduce them ³. NRCA says ice damming is more likely on lower-slope roofs and near valleys, chimneys and other penetrations, and advises against using sharp-edged tools, hosing the roof with water or using hot-air guns to clear ice ².

Installation and materials

NRCA says a complete roof system failure is generally irreversible and the result of improper installation or the choice of materials, while leaks can come from loose flashings or a damaged section ². Installation details such as fastening, underlayment, flashing at walls and chimneys, and ventilation are set by the roofing company on the day of the job, and they are hard to check once the roof is covered. The manufacturer's printed installation instructions are the reference; the 2018 International Residential Code, as the Town of Firestone, Colorado summarizes it for reroofing, requires all roofing materials to be installed according to the manufacturer's approved instructions ¹¹. That is why the choice of roofing company matters as much as the choice of shingle; see how to choose a roofing contractor.

Neglect

Debris in valleys, gutters and drains that slows drainage, and missing or dislodged shingle tabs left unrepaired, are among the problems NRCA lists for homeowners to watch for ⁹. NRCA suggests checking a roof at least twice a year, preferably in spring and fall, from the ground or a ladder rather than by walking on it ⁹.

Lifespan and warranty are not the same

A long warranty does not mean a long life, and the reverse. NRCA explains that a manufacturer's warranty generally covers defects in the roofing material, with terms from 20 years to a lifetime, while a contractor's warranty covers installation and is often one or two years, with no industry standard ². Read what each warranty covers and what voids it. See roof warranties explained.

When age means it is time to plan

A roof approaching the end of its expected life does not have to be replaced the day it gets there, but it is worth planning for. Signs that the end is near include widespread curling or splitting shingles, which NRCA calls evidence of deterioration ⁹, and leaks that keep coming back. Our repair or replace a roof guide walks through the decision by symptom, signs you need a new roof covers what to look for, and the roof replacement cost guide shows what a new roof costs by material and size. For a side-by-side look at the materials themselves, see types of roofing materials.

Frequently asked questions

How long does a shingle roof last?

About 15 to 20 years for 3-tab shingles and 25 to 30 years for architectural shingles, according to Fixr ⁴; InterNACHI gives 20 and 30 years ¹.

Can a roof last 50 years?

Some materials are rated to. InterNACHI's chart gives 40 to 80 years for metal, 60 to 150 years for slate and 100 years or more for clay and concrete tile ¹. Asphalt shingles are not rated that long in any of the sources above ¹⁴⁷.

Does a roof last longer in some climates?

Climate is one of the factors NRCA names ². Sun exposure, heat, moisture and ice all wear on a roof, and InterNACHI notes that south- and west-facing slopes tend to weather faster ¹⁰.

Is a 20-year-old roof too old?

It depends on the material. For 3-tab asphalt shingles, 20 years is at or past the expected life in InterNACHI's chart and Fixr's range ¹⁴; for architectural shingles, metal or tile, it is not.

About these figures

• ¹ Reported: InterNACHI estimated life expectancy by roofing material (guideline only, undated chart) and its note on what changes life expectancy, checked November 11, 2026.
• ² Reported: NRCA on design life of most new roofs (about 20 years), climate, ventilation, ice dams, causes of roof failure and warranty terms (20 years to lifetime; contractor often one or two years), checked November 11, 2026.
• ³ Reported: ARMA on ventilation, condensation, deck heat and ice dams, checked November 11, 2026.
• ⁴ Reported: Fixr lifespans for 3-tab, architectural and luxury asphalt shingles, page updated January 21, 2026, checked November 11, 2026.
• ⁵ Reported: Fixr lifespans for metal roofs overall and for steel, tin and zinc, page updated January 23, 2026, checked November 11, 2026.
• ⁶ Reported: Fixr lifespans for TPO, PVC, EPDM, modified bitumen and built-up roofs, page updated January 27, 2026, checked November 11, 2026.
• ⁷ Reported: This Old House lifespans for asphalt, wood shake, metal and clay tile, page updated October 7, 2026, checked November 11, 2026.
• ⁸ Reported: NRCA descriptions of tile as durable and slate as virtually indestructible, checked November 11, 2026.
• ⁹ Reported: NRCA guidance in Professional Roofing (October 2013) on twice-yearly checks and warning signs, checked November 11, 2026.
• ¹⁰ Reported: InterNACHI on granule loss from weathering, climate and slope orientation, checked November 11, 2026.
• ¹¹ Official record: Town of Firestone, Colorado reroofing requirements under the 2018 IRC (R904.1, materials installed per the manufacturer's instructions), checked November 11, 2026.