How Long Can I Expect My New Roof to Last?


Owning your home comes with many benefits, such as increasing property values and having a place to call your own. It also comes with lots of responsibilities. You must keep plumbing, appliances and the HVAC system in top shape. The same goes for the exterior structure. How do you know when it’s time to replace the roof? And when you know it’s time, how long can you expect the new one to last?

Life Expectancy of a New Roof

As with most things, the answer to this question is: it depends. The life expectancy of a roof will vary, based on the type of materials used to construct the roof.

  1. Asphalt Shingles: Higher-quality asphalt shingles typically last 25 to 30 years. The lower-end variety has a life expectancy of about 20 years.

  2. Tile and Slate: Tile and slate roofing are preferred by many homeowners since they can withstand harsh weather conditions. These roofs give homes a beautiful curb appeal and are durable, lasting up to 100 years. They’re also environmentally-friendly since they’re made from minerals, and they help to regulate the temperature in your home.

  3. TPO Roof: TPO Stands for Thermoplastic Polyolefin, which is flat, single-ply roofing. It is most often used for commercial and industrial properties. It is cost-effective and protects the property from heat, since it reflects sunlight, keeping higher temperatures outside. This type of roof doesn’t need to be pressure washed and doesn’t promote mildew growth. Depending on the quality of the manufacturer, a TPO roof usually lasts between 10 and 20 years.

Signs Your Home Needs a New Roof

If you live in an old home and are not sure when the roof was installed, look for the following signs that it’s time to replace it:

  • It looks weathered. This includes discolored and/or missing shingles.

  • Mold growth. If mold is growing on the roof, you can treat the roof to eliminate the mold. However, if it’s a pervasive problem, understand that it will significantly decrease the roof’s life expectancy.

  • Standing water. If you have a flat roof and haven’t provided regular maintenance or if it doesn’t have adequate drainage, the pressure from standing water will cause the roof to sag.

  • Leaks. This is one of the most common signs that the roof needs to be replaced. If leaks are accompanied by water stains on the ceiling or bulges on the wall, schedule a replacement as soon as possible. Water can cause structural damage to your home.

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