In a recent article, we took a look at how long an asphalt roof is expected to last.
This time around, we’re diving into the lifespan of metal roofing, and also sharing key information to make sure you’re in-the-know about things beyond longevity, like durability, weather resistance, warranties, and the different types of materials used.
As with any type of roofing, the quality of the product — as well as the quality of the installation — play a big role in how long a metal roofing system will last. That said, for the purposes of this article, we’ll focus our attention on the GAF TimberSteel premium metal roofing system for two reasons:
GAF is the top roofing manufacturer in the country, offering exceptional products and warranties.- We are GAF Master Elite Roofing Installers, and this is the type of roofer you’ll want to choose to ensure that the quality of your metal roof installation is at the highest level possible (more on this below). Look for this type of experience level no matter what metal roofing brand you ultimately choose. That being said, GAF and DECRA metal roofing systems are the best around.
Let’s get started …
WHAT IS THE LIFESPAN OF A METAL ROOFING SYSTEM?
As with asphalt roofing, the answer to this question depends on the type of materials used in the metal roofing product.
That said, the most popular form of metal roofing is steel, and both GAF and DECRA metal roofing systems typically last 50+ years. These roofs are built to resist fading, corrosion and extreme weather, so they’re perfect for Wisconsin homes.
TYPES OF METAL ROOFING
- Steel (galvanized or galvalume) $
- Lifespan: approximately 40-60 years
- Durable and versatile, top brands are coated to resist rust and corrosion
- Stone-coated steel roofing can have a slightly higher cost
- Aluminum $
- Lifespan: approximately 40-50 years
- Lightweight and naturally resistant to rust, well suited for coastal, salt-air regions
- Zinc $$
- Lifespan: approximately 60-100 years
- Zinc is self-healing and it’s also corrosion-resistant, cleaner regions help maximize lifespan
- Stainless Steel $$
- Lifespan: approximately 50+ years
- Less strong and more expensive than galvanized steel, it’s better suited for coastal areas
- Copper $$$
- Lifespan: 70-100+ years
- Premium and corrosion-resistant, copper develops a protective patina as it ages
METAL ROOFING IS EXCEPTIONALLY WEATHER RESISTANT
A well-made, properly installed metal roofing system is crafted to handle high winds, snow, hail, and ultraviolet rays, year after year. They are also impact resistant.
- Wind Resistance: Metal roofing resists high winds, in part because of their interlocking system that also prevents uplift. As an example of what to look for, the GAF TimberSteel roofing system passes the ASTM D3161 Class F test method for wind resistance, which in plain terms means it is in the highest category for wind resistance — tested to handle up to 110 mph wind speeds under the Standard Test Method for Wind Resistance of Steep Slope Roofing Products.
- Impact Resistance: Another great benefit of metal roofing is impact resistance. Most quality metal roofs have a Class 4 rating (UL 2218 standard), which means they do not split, crack, or lose any protective layers if impacted by hail (including large hail) or debris.
- Moisture Resistance: Roofing like the GAF TimberSteel system or any of DECRA’s metal roofing systems offer superior wind-driven rain protection.
- UV Resistance: Over time, sunlight can deteriorate roofing materials. One of the perks of metal roofing is that it can withstand UV rays 3 to 4 times longer than asphalt shingles.
METAL ROOFING IS LOW MAINTENANCE
Compared to asphalt roofing, a metal roof requires very little upkeep.
Metal roofing is easy to clean, and also resists moss and algae better than asphalt roofing.
The higher durability of metal roofing also means fewer repairs due to damage from hail, debris or pests.
THE IMPORTANCE OF PROPER INSTALLATION
Remember, the experience-level and reliability of the roofer you hire for the project is a critical aspect of the process.
If you do choose to go with a GAF metal roofing solution, as mentioned earlier, it’s best to hire a local GAF Master Elite Installer. This is a licensed installer who is insured for all of their work, proven to be reputable within the community — as well as being committed to completing specific, ongoing professional training. In addition to having an experienced contractor on the job, you also receive enhanced warranties on qualifying roofing systems.
THE WARRANTY
Whether you realize it or not, a roofing system’s warranty is just as important as the roofing itself. A great warranty can give a homeowner peace of mind that they’re covered if anything happens with their roof, so be sure to ask about warranties!
When you do so, you will need to inquire about TWO different types of warranties with your roofer:
- A workmanship warranty;
- and a manufacturer’s warranty
Once again, if you’re working with a reputable, experienced roofer, and having a metal roofing system like the ones made by GAF and DECRA installed, you can expect the best warranties possible. As an example, here’s a PDF of the GAF TimberSteel ArmorPledge Limited Warranty.
MINI GALLERY
GET IN TOUCH
If you’re considering a metal roof for your home, one of the most important things you can do is ask a lot of questions! That said, feel free to get in touch with us anytime. Whether you have questions, or would like a complimentary roof inspection — with no strings attached. We’re always happy to help, even during the winter months!