Asphalt shingles are the most popular roofing material in the U.S., and it’s easy to see why. They’re affordable, strong, and come in lots of styles that look great on almost any home. But have you ever wondered how asphalt shingles are made?
If you’re thinking about a new roof or just want to know more about what’s over your head, this guide is for you. We’ll explain what shingles are made of, walk through the asphalt shingle manufacturing process, and show you why asphalt shingles are such a smart choice for homeowners.
What Are Asphalt Shingles Made Of?
To understand why asphalt shingles work so well, it helps to know what they’re made of. Even though they look pretty simple, shingles have layers that all work together to protect your home. This is called the asphalt shingle composition.
Here are the three main parts:
1. Base Mat
This is the foundation of the shingle. It gives the shingle shape and strength. Most shingles today use a fiberglass mat, made from tiny glass fibers. It’s lightweight, tough, and fire-resistant.
Some older shingles were made with organic mats, which used materials like recycled paper. These are thicker but not used as often anymore because they don’t hold up as well in heat and fire.
2. Asphalt Layer
The next layer is made of asphalt, a thick, sticky material made from oil. This layer is what makes shingles waterproof. It’s spread on both sides of the mat to protect your roof from rain, snow, and moisture.
Sometimes, special ingredients are mixed in with the asphalt to help it resist fire and handle tough weather.
3. Mineral Granules
The top of the shingle is covered in tiny crushed stones, called mineral granules. These do more than give color; they help block sunlight, add durability, and make shingles less likely to catch fire. Some granules also help prevent algae from growing on your roof.
All three layers work together to make shingles that are strong, long-lasting, and ready to stand up to the weather.
The Asphalt Shingle Manufacturing Process
Now that we know what asphalt shingles are made of, let’s look at how asphalt shingles are made. Big machines and careful steps are used to make sure each shingle is tough, consistent, and ready to protect your home.
Step 1: Making the Base Mat
It starts with giant rolls of fiberglass mat. These rolls go into a machine and are flattened into smooth sheets. This becomes the base that holds the whole shingle together.
Step 2: Adding the Asphalt
Next, hot asphalt, heated to about 400 degrees, is spread onto the fiberglass mat. This step seals the mat and makes it waterproof. The asphalt covers both the top and bottom of the mat to add strength and flexibility.
Some manufacturers mix in extra materials to help the shingles resist fire or perform better in different temperatures.
Step 3: Adding the Granules
While the asphalt is still warm, colored mineral granules are added on top. These granules get pressed into the asphalt so they stick for good. Any extra granules fall off and are collected to use again.
This step also gives the shingles their color and helps them reflect sunlight, which keeps your roof cooler.
Step 4: Cooling and Sealing
After the granules are added, the shingles go through cooling machines. This helps the asphalt harden and keeps the granules locked in place. Then, a strip of sealant is added to the bottom. This sealant helps shingles stick to each other once they’re on your roof, which is important for wind protection.
Step 5: Cutting and Packing
Finally, the long sheets are cut into standard-size shingles, usually 12 by 36 inches. The shingles are then bundled, packaged, and sent out to roofing companies ready for installation.
That’s the full asphalt shingle manufacturing process, designed to make tough, reliable roofing you can count on.
Types of Asphalt Roofing Materials
Even though most shingles are made in a similar way, not all shingles are the same. Here are some popular types of asphalt roofing materials you can choose from.
Architectural Shingles
Also called dimensional shingles, these are made with multiple layers to give them a thicker, more textured look. They’re a little heavier but offer great protection and a high-end appearance.
Premium Shingles
Premium shingles are designed to look like fancy materials, like wood shakes or slate tiles, but without the high cost. They’re stylish, strong, and built to handle bad weather.
Impact-Resistant Shingles
If you live in an area with hail or strong storms, impact-resistant shingles are a great choice. They’re specially built to hold up against things like falling branches and hailstones.
No matter which type you choose, they all start with the same reliable asphalt shingle composition and go through the same quality asphalt shingle manufacturing process.
Why Asphalt Roofing Materials Are a Great Choice
Now that you know how asphalt shingles are made, you might be wondering, what makes them so popular? It’s simple: they work well, look good, and don’t cost a fortune.
Here’s why homeowners love asphalt shingles:
- Affordable: You get a strong, protective roof without spending a ton of money.
- Easy to Install: Shingles are lightweight and quick for roofers to install, saving time and labor.
- Lots of Styles: Whether you want something classic or modern, there’s a color and design that fits your home.
- Low Maintenance: Once installed, asphalt shingles don’t need much upkeep.
- Weather-Ready: They can handle rain, sun, snow, wind, even hail if you choose the right type.
That’s why asphalt roofing materials are a favorite among homeowners across the country.
Schedule Your Free Inspection Today
Understanding how asphalt shingles are made helps you make a smart choice for your home. With the right materials and proper installation, your roof can last for decades.
If your roof is older or if you’re just curious about its condition, now’s a great time to take the next step.
Schedule your free inspection today and find out if it’s time for a roof that’s durable, beautiful, and built to last.
