How Long Does A Roof Last In New England?

The International Association of Certified Home Inspectors (InterNACHI) publishes a life expectancy chart that many inspectors use as a starting point. For roofing, it lists:

• Architectural asphalt shingles: about 30 years.
• 3-tab asphalt shingles: about 20 years.
• Metal: 40 to 80 years.
• Slate: 60 to 150 years.
• Wood: about 25 years.
• Clay or concrete tile: 100 years or more.
• EPDM rubber (flat and low-slope roofs): 15 to 25 years.
• Modified bitumen (flat and low-slope roofs): about 20 years.
• TPO (flat and low-slope roofs): 7 to 20 years.

If your roof is asphalt shingles, the first two numbers are the ones to know. If your house has a flat section over a porch, an addition or a three-decker, it has its own clock. Our flat roof repair guide covers those.

Winter is the part of the year most New England roofs remember. Ice dams can push meltwater back up under shingles at the eaves, and our ice dam prevention guide explains how they form and how to stop them. If you already have ice on the roof, our ice dam removal guide covers what is safe to do.

Storms are the other big one. A single nor'easter or a hurricane remnant can lift shingles or drop a limb, and that damage shortens a roof's life if nobody finds it. After a big storm, look at the roof from the ground and check the attic for daylight or wet spots. Our storm damage and insurance guide walks through what to do next.

Age is only a clue. The roof tells you more. Our signs you need a new roof guide covers the full list, but the short version is to watch for leaks that keep coming back, shingles that are missing, curling or cracked, bare spots where the granules have worn off, and stains or daylight in the attic.

One leak does not mean the whole roof is done. Our roof leak repair guide explains how to tell a repair from a replacement.

A roof inspection is the way to learn the roof's current condition. Condition tells you more than age does about whether you are looking at maintenance, a repair, or planning for a replacement, though no one can give you an exact date. If you are weighing materials for a new roof, see our asphalt shingle vs metal roof guide.