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Posted by : Colby Stockton

There’s no question about it. When it comes to roofing materials, asphalt shingles are by far the most popular! It’s not hard to see why. They are hugely affordable and relatively durable.

However, like all roofing materials, shingle roofs have a finite lifespan. Knowing when it is time to replace your shingle roof can help you save money by preventing further damage. In this blog post, we will answer all of your questions, including:

  • How long does a shingle roof last?
  • Which signs indicate that it’s time for a replacement?
  • How can you increase your roof’s longevity?
  • How much does a roof replacement cost?

How Long Does an Asphalt Shingle Roof Last?

The lifespan of an asphalt shingle roof can vary depending on several factors, including the type of shingles, climate, maintenance, and installation quality. On average, you can expect an asphalt shingle roof to last between 20 to 30 years. However, with proper care and maintenance, some shingle roofs have been known to exceed this range.

Types of Asphalt Shingles:

Three-tab shingles typically have the shortest lifespan, averaging around 20 years. Architectural or dimensional shingles, on the other hand, tend to last longer, with an average lifespan of 25 to 30 years or more.


The climate in your region plays a significant role in determining your roof’s lifespan. Extreme weather conditions, such as heavy rain, snow, strong winds, and intense sunlight, can accelerate the wear and tear on your shingles.


Regular maintenance can extend the life of your shingle roof. This includes cleaning debris, inspecting for damage, and addressing issues promptly.

Installation Quality:

The quality of the installation is crucial. A properly installed shingle roof is more likely to last longer than one with poor workmanship.

7 Signs You Need to Replace Your Shingle Roof

Knowing when it’s time to replace your shingle roof is essential to prevent further damage to your home. Here are some telltale signs that indicate it’s time for a roof replacement:

1) Age ๐ŸŽ‚

If your roof is approaching or has exceeded its expected lifespan, it’s a clear sign that you should consider a replacement.

2) Missing, Cracked, or Curling Shingles ๐Ÿ”

Inspect your roof regularly for damaged or missing shingles. Shingles that are cracked or curling are no longer effective in protecting your home from water damage.

3) Leaks or Water Stains ๐Ÿ’ง

Interior leaks or water stains on your ceiling can be a sign of roof damage. If left unaddressed, these issues can lead to more extensive problems like mold growth and structural damage.

4) Granule Loss ๐Ÿงน

Over time, shingles can lose their granules, which protect them from UV rays. If you notice excessive granule loss in your gutters or on the ground, it’s a sign that your shingles are deteriorating.

5) Rotting or Sagging Roof Deck ๐Ÿš๏ธ

A sagging or rotting roof deck is a severe issue that indicates significant water damage. This often requires immediate attention and a roof replacement.

6) Increased Energy Bills ๐Ÿ“ˆ

If your energy bills have been steadily rising, it could be due to poor insulation caused by a deteriorating roof. Replacing your roof can improve energy efficiency.

7) Algae or Moss Growth ๐ŸŒฑ

Algae and moss growth on your shingles can trap moisture and accelerate roof deterioration. It’s a sign that your roof may need attention.

How to Increase the Longevity of Your Shingle Roof

While the lifespan of your asphalt shingle roof is influenced by various factors, there are steps you can take to maximize its longevity and get the most out of your investment:

  • Regular Inspections: Conduct regular roof inspections to identify and address issues promptly. This can help prevent minor problems from becoming major ones.
  • Clean Your Gutters: Clogged gutters can lead to water backup, which can damage your shingles and roof deck. Clean your gutters regularly to prevent this issue.
  • Trim Overhanging Trees: Tree branches hanging over your roof can cause damage when they rub against or fall onto your shingles. Trim back branches to avoid this risk.
  • Ventilation: Ensure your attic is properly ventilated. Proper ventilation can help regulate temperature and moisture levels in your attic, extending the life of your shingles.
  • Professional Maintenance: Consider hiring a professional roofing contractor for regular maintenance. They can identify and address issues you might miss during your inspections.
  • Roof Coatings: Roof coatings can provide an extra layer of protection against UV rays and water damage. Consult with a professional to determine if a coating is suitable for your roof.

The Cost to Replace Your Asphalt Shingle Roof

When the time comes to replace your asphalt shingle roof, it’s essential to budget accordingly. The cost of a roof replacement can vary significantly based on several factors:

  • Roof Size and Complexity: Larger roofs or those with complex designs, multiple angles, or dormers will cost more to replace.
  • Material Choice: The type of shingles you choose will affect the cost. Architectural shingles tend to be more expensive than three-tab shingles.
  • Removal of Old Roof: The cost of removing the old roofing material can add to the overall project cost.
  • Underlayment and Ventilation: Proper underlayment and ventilation systems are essential for a long-lasting roof, and these components add to the cost.
  • Labor Costs: Labor costs can vary depending on your location and the roofing contractor you hire. Be sure to obtain multiple quotes to find a competitive rate.
  • Additional Features: If your roof replacement involves adding features like skylights or roof vents, this will increase the overall cost.
  • Permits and Regulations: Depending on your local regulations, you may need permits for the roof replacement, which can add to the cost.

Learn More About Asphalt Shingle Roofs

Choosing a roofing style for your home is hugely important and shouldn’t be taken lightly. If you think it is time to invest in a new roof but want to make sure that you understand all of your options, Highroad Roofing can help!

Contact our team today to set up your consultation.ย 

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