Your roof’s life expectancy might not be top of mind, but it’s a serious issue for all homeowners and business owners. Just think of everything your roof protects from the elements, particularly the people most important to you. You need a strong roof overhead.
Of course, all things tend to wear out and weaken over time, and your roof is no exception. So, how long does a roof last? Even the strongest materials have limited lifespans, no matter how much they cost or how well they were installed.
The question of how long a roof is good for depends on several factors, including the materials used, installation and maintenance methods, and the climate in which you live. We’ll examine each of these factors, as well as the timing and process of replacing a roof.
Factors That Affect Your Roof’s Lifespan
How long does a roof last? The answer depends on many factors. Here’s what you should consider:
Type of Materials
Some roofing materials are more durable than others. For example, a metal roof lasts much longer than an asphalt roof.
Quality of Materials
Not all materials are made to last. Low-quality roofing materials lead to a lower roof life expectancy. Although higher quality materials typically cost more, it’s usually worth it in the long run.
Color of Materials
Sometimes, the color of the material can affect your roof’s lifespan. Lighter colors are generally recommended in warm climates because dark materials absorb more heat. When shingles get too hot, it’s detrimental to their life expectancy.
Installation Quality
A poorly installed roof will not last as long as one that’s properly installed. Check your contractor’s reviews online and ask for references. Ensure your roofing contractor is licensed and insured.
Underlayment
Underlayment is a waterproof barrier underneath your roof that adds extra protection in case the roof is damaged. The quality and type of underlayment can also affect your roof lifespan.
The Slope of Your Roof
Flat roofs and roofs with a low pitch are prone to letting water puddle rather than sliding off. This puddling water can promote the growth of molds and fungus, and cause other damage to the roof.
The Elements
Sun, wind, rain, snow, and hail can all damage your roof and shorten its lifespan. Wind can rip away shingles, and hail can tear them up. Rapid temperature changes can also wreak havoc on your roof. Tree branches can cause damage by rubbing against the shingles or falling on them during a storm.
Ventilation
Proper ventilation helps the roof maintain an even temperature, reducing the damage from extreme heat or cold.
Tree Coverage
Overhanging trees can rub against roof surfaces and clog gutters with leaves. The impact of falling branches can also cause damage.
Environmental Contaminants
Dust, pollen, mold spores, industrial pollutants, and salt spray can accelerate the deterioration of roofing materials.
Foot Traffic
Frequent walking on the roof can cause physical wear and tear, shortening its lifespan. If possible, clean or inspect the roof from a ladder.
Pest Infestations
Birds, insects, or small mammals often burrow and nest in roofs, creating holes. Their acidic droppings may also damage your roof’s structure and materials.
Algae and Moss Growth
Algae and moss may collect moisture against the roof surface, leading to rot and deterioration of roofing materials, especially in humid climates.
Regular Roof Maintenance
Regular roof maintenance helps extend the life of your roof. Inspect the roof annually to check for signs of damage. If you can identify problems in the early stages, you can get them fixed before they become major issues.
How Long Does Each Type of Roof Last?
The primary factor determining how long a roof will last is the material from which it’s made. On the lower end are asphalt shingles, some lasting longer than others. At the high end are copper and slate roofs, which can last for over half a century. Some even last up to 100 years.
The more durable the material used for a roof, the more expensive those materials tend to be. We’ll look at how long each type of roof lasts and how much you can expect to pay. That way, you can do the math to determine what you truly get in return for the roof you buy.
When considering the longevity of your home’s roof, various materials offer different benefits and average lifespans:
- Asphalt Shingles: Lasting between 15 and 30 years, asphalt shingles are popular due to their cost-effectiveness and wide range of styles. They’re best suited for areas with varying weather patterns or changing seasons.
- Composite Shingles: With a lifespan of 20 to 50 years, composite shingles or synthetic shingles are made from a mix of materials like fiberglass, recycled paper products, and asphalt. This variety of materials makes them more resilient against weathering and environmental impacts.
- Modified Rubber Shingles: These shingles are engineered from rubber. As such, they’re flexible and effective at resisting extreme weather conditions like high winds, hail, and snow. Expect them to last about 30 years.
- Wood Shingles: Installing wood shingles is one of the best ways to give your home a more natural aesthetic. However, they require protective treatments every one to three years to prevent decay and are best used in moderate climates. Wood shingles typically last 30 to 40 years.
- Clay Tiles: These tiles are durable and last up to 50 years. They’re also highly heat-resistant, making them ideal for hot climates. However, they’re also relatively heavy and require strong structural support.
- Concrete Tiles: Similar to clay, concrete tiles last about 50 years and are resilient against fire, rot, and insect damage. They offer more versatility in color and style but weigh more than other roofing materials.
- Metal Roofs: This roofing material is lightweight and can withstand severe weather conditions. Metal also reflects heat efficiently, making it energy-efficient for homes in varying climates. Remember that there are different types of metal roofs, each having unique benefits. For instance, aluminum roofs don’t rust; meanwhile, copper roofs develop a protective patina over time that guards against chemical and environmental deterioration. Metal roofs last between 60 and 100 years.
A Detailed Look at Shingle Comparisons
We can broadly divide types of roofing materials into shingle roofs and metal roofs. While materials like copper can be installed in the form of shingles, metal roofing is a category unto itself.
How Long Does a Shingle Roof Last?
Asphalt shingles are the most common type of roofing material. They date back to the 1920s and are used on most homes today. How long does an asphalt shingle roof last? The average lifespan of an asphalt shingle roof is 10 to 30 years, depending on the type of asphalt shingle you use. They don’t last as long in warmer climates; they’re better suited to colder climates. The cost per square foot ranges from $3.50 to $5.00.
There are three types of asphalt shingles:
- 3-tab: These are the most affordable type of roof shingle. In the right conditions and with proper maintenance, they can last 10 to 15 years. These are made from a fiberglass base topped with mineral granules that disperse and reflect the sun’s rays. They’re lightweight, easy to install, offer a clean appearance, and are perfect for homeowners on a tight budget.
- Dimensional: These asphalt shingles have a multi-dimensional texture and appearance. They’re extremely durable, lasting 20 to 25 years. These shingles are made of 2+ layers of shingles to provide added strength. That means, of course, that they cost more than 3-tab shingles.
- Luxury: Top-of-the-line asphalt shingles offer even more multi-dimensions and maximum durability. One perk is that they’re designed to look like natural slate shingles or cedar shake shingles but cost much less. Perhaps most important is their extra strength. You might especially want these if you live in Tornado Alley, on a hurricane-prone coast, or if you tend to get a lot of large hail.
Clay Roof Shingles
Clay roof shingles, commonly designed in a Mediterranean or Southwestern style, are a popular roofing material and can mimic Victorian slate. They come in either glazed or unglazed finishes and shapes that include flat, fluted, and interlocking designs.
Clay shingles can withstand extreme temperatures, meaning they’re suitable for virtually any climate. They are, however, particularly resistant to salt, so they’re an excellent choice for coastal regions. While expensive at $700 to $1,000 per 100 square feet, they usually come with a 50-year warranty.
Concrete Roof Shingles
Concrete roof shingles can be simulated to look like just about any style you prefer. The options are endless. They offer long-lasting results of at least 50 years, can withstand wind speeds of over 125 miles per hour, and exceed seismic load requirements.
Concrete tiles can be used anywhere, including cold climates, if specific installation requirements are met. You can expect to pay between $300 and $500 per 100 square feet for these shingles.
Cedar/Wood Roof Shingles
Cedar or wood roof shingles (different from wood shakes in that they’re more precisely milled and have a more refined appearance) provide a lovely rustic appearance common on Craftsman-style homes. They’re often used in the northeast, even though the salty air may affect the roof’s longevity. Still, these shingles can last 30 to 40 years. The cost is relatively expensive, at $450 to $900 per 100 square feet.
Composite Roof Shingles
Composite roof shingles are made from a fiberglass-reinforcing mat coated with asphalt and mineral fillers. Depending on the type chosen, they can last 20 to 50 years. While composite shingles work well in all conditions if maintained properly, rainy and icy conditions can weaken or cause them to loosen or dislodge. Composite roof shingles range from $575 to $1,350 per 100 square feet.
Rubber Roof Shingles
Rubber roof shingles can be manufactured to look like any type of roofing material. Since they’re made from old rubber tires, they’re an eco-friendly option. Rubber shingles are very lightweight and easy to install. Also, repairs are typically easy and inexpensive. Rubber shingles have a lifetime of approximately 30 years, even lasting through high winds and lightning strikes. They cost between $400 and $800 per 100 square feet.
Metal Roofing Materials
Metal roofing is gaining traction in many areas for its durability and unique appearance. While shingles, particularly asphalt shingles, are still more common due to their affordability and ease of installation, metal shingles are gaining ground.
When the term metal roof is used, people typically refer to roofs made of steel with either a galvanized zinc or galvanized aluminum coating. These roofing materials are excellent for climates with many storms, large hail, or heavy snowfall. However, they may corrode if exposed to sea salt spray. The perks of metal roofs are that they can usually be installed directly over old asphalt shingles and last around 50 years. Costs start at around $300 per 100 square feet.
Copper Roof Shingles
A copper roof is a top-of-the-line look that will increase the value of your home. The metal isn’t coated or painted because of the beautiful patina that occurs naturally over time. Doing an entire roof in copper is expensive, so many homeowners choose to feature it on just a portion of the roof, such as over a dormer window. Copper roof shingles are an investment, at $1,100 to $1,500 per 100 square feet. However, you can expect an 85.9% return on that investment in your home’s resale value.
Slate Roofing
Another step up from copper is slate roofing. Experts say slate roofing can last over a century when properly installed. Like other types of roofing, slate is very heavy and needs the necessary structural strength below to support it. Slate roofing can cost over $1,600 per 100 square feet. In addition to the expense, it can be a challenge in many areas to find roofers experienced in installing slate roofing.
What to Consider When Replacing Your Roof
Replacing a roof is a big decision and a significant investment. It costs a lot of money and involves many options to sort out. Things to consider when replacing your roof include:
- Choosing roofing materials that fit your budget
- Choosing roofing materials that accommodate how long you want to stay in the home (investing in long-lasting slate roofing might not be worth the cost if you plan to leave soon)
- Considering future roof maintenance and options for extending the life of your roof
- Developing a plan for your roof that’s appropriate for your climate
Early Failure of Asphalt Shingles
It’s essential to discuss a major issue homeowners face today with asphalt shingles. A few decades ago, manufactured shingles were much heavier due to their percentage of asphalt. Nowadays, however, manufacturers have replaced much of the asphalt in the shingles with crushed limestone filler. This makes the shingles much lighter and much less effective, even though the advertised warranty has jumped from around 30 years to lifetime warranties.
This is a well-documented problem; even Bob Vila speaks out about it. Lawyers have filed Class action lawsuits on behalf of many homeowners across the country who have had their asphalt-shingle roof fail in as few as six years after installation.
Cost-cutting by shingle manufacturers has caused various failures, including blistering, buckling, and leaking. These are expensive fixes, and when homeowners turned to their warranty, they were shocked to realize the coverage only replaces the shingles themselves. It doesn’t cover the labor costs of replacing the roof (which are about two-thirds of the total cost), and it doesn’t cover damages caused by the failures.
If you have an asphalt shingle roof showing signs of a defect well before the warranty is up, you may be the victim of shoddy manufacturing. To mitigate the issue and keep costs down, here’s what you can do:
- Make sure to have a professional roof inspection done yearly, but especially have one done before the first 12 months are over so you have a greater chance of being covered under a defect warranty.
- If there are any issues, contact your roofing company as soon as possible to learn more about the warranty and file a claim.
- Contact Roof Maxx to determine if roof rejuvenation is a viable option for extending the life of your shingles by up to 15 years with repeated application, potentially saving you thousands of dollars in replacement costs.
7 Signs You Need a New Roof
Do you know the warning signs you need a new roof? While roof replacement is expensive, it’s a bad idea to let it go past due. The consequences include increased energy bills, water damage, mold, pest infestation, decreased property value, and more. It’s best to replace it before the situation gets much worse. Here are seven interior and exterior signs that you need a new roof:
1. Shingle Edges are Curled or Cupped
This can occur simply from age or extreme weather but also from poor roof ventilation, insufficient binders, or bad manufacturing or installation.
2. Dark Stains Have Formed
If you see dark stains on the top or underside of the roof, the roof is likely leaking and causing moisture damage. This is terrible not only for the roof but also for your home’s interior structure.
3. Your Roof Is Cracking or Sagging
Cracks are easy to see, but if you’re unsure if the roof is sagging, use a broom to lightly push at the suspected spot. If it’s wet or moves, you need a new roof immediately.
4. Signs of Rot or Mold
Rot and mold retain moisture and can quickly get out of control, weakening your structure.
5. You See Bald Spots or Find Asphalt Shingle Granules in the Gutter
Granules help deflect heat and water away from your home. If they are lacking, the roof will be more susceptible to problems.
6. Your Chimney or Roof Flashing is Damaged
Flashing is the metal that is applied around joints, such as where the chimney meets the roof. Damage to the flashing allows water to seep in underneath the shingles, damaging your home’s infrastructure.
7. Others in Your Neighborhood Are Getting New Roofs
Homes in the same neighborhood are often constructed around the same time. So, your roof will need replacement when multiple neighbors start getting theirs replaced.
In addition to being cost-effective, asphalt shingle roofing is easier to install than many other types of roofing. That helps reduce the time and cost of professional installation. It also means you can consider replacing the roof yourself, though many steps are involved to ensure you get it done right.
How to Extend Your Roof’s Life Expectancy
Since replacing your roof can be a significant investment, it pays to know how to make it last longer. Other than choosing the right type of roof shingles for your climate and not just for budget or aesthetics, here are five ways to extend the life of your shingles:
- Maintain the area around your roof. This includes cleaning out the gutters so water doesn’t pool. Trim nearby branches so the fallen leaves don’t trap moisture and branches don’t cause damage.
- Try to limit foot traffic on the roof and never use a power washer to clean it, which can dislodge the important granules.
- Properly ventilate and insulate the attic. When air flows well, heat and humidity won’t build up on the underside of your roof, which causes the asphalt to dry out faster.
- Get a professional inspection every year to catch minor fixes before they become significant expenses. This is especially important after a severe storm.
- Another way to potentially extend the life of your asphalt roof is to paint the roof. Painting can add life to your roof, but it requires much work. Painting can contribute to other issues, so it must be carefully thought out.
- The most effective way to add life to your asphalt roofing is to rejuvenate it with Roof Maxx’s scientifically formulated, all-natural oil treatment. Roof Maxx has millions of microbeads of all-natural oil that penetrate your old roof and restore its flexibility and waterproofing protection.
Asphalt shingles that were once dry and brittle can function like new again, thanks to Roof Maxx’s innovative roof rejuvenation. A single application instantly adds five years of life to your roof and can be done at a fraction of the replacement cost.
By choosing the right roof and knowing how to make it last longer, including the rejuvenation roof spray by Roof Maxx, the top of your home will protect you from the outside elements of sun, and rain. You’ll be proud of its beauty.
Contact Roof Maxx today to learn how to make your asphalt roof last up to 15 years longer.
FAQs Regarding a Roof’s Life Expectancy
Still wondering, “How long does a roof last?” Here are some answers to a few frequently asked questions that can help.
What color roof lasts the longest?
Lighter-colored roofs typically last longer than darker ones. Lighter colors reflect more sunlight and absorb less heat, reducing thermal damage and the degradation of roofing materials.
What type of roof lasts the longest and is the most cost-effective?
Metal roofs are the longest-lasting and most cost-effective roofing option. They can last up to 60 years or more with minimal maintenance. Metal is durable against various weather conditions, which answers the question of “how long does a roof last” quite effectively, especially when balanced against their upfront cost and long-term savings.
What time of year is best to replace a roof?
Late spring to early fall is generally the best time to replace a roof. During these months, the weather is typically milder and drier, ideal for roofing installations. Cooler temperatures make it easier for installers to work, and the lower likelihood of rain or snow can help ensure they can complete the project without weather-related delays.
