How Asphalt Shingle Are Made

asphalt shingle manufacturing process

Asphalt shingles are the most popular roofing material in the U.S., offering durability, affordability, and a variety of styles. But have you ever wondered how asphalt shingles are made? Understanding the asphalt shingle manufacturing process can help homeowners appreciate the craftsmanship and quality behind their roofing materials.

At Integrity First Construction, we believe in using only the best materials for our roofing projects. That’s why we want to break down the asphalt shingles production process, from raw materials to the finished product, so you can see why quality matters when it comes to protecting your home.

The Raw Materials Behind Asphalt Shingles

Before we dive into the asphalt shingle manufacturing process, it’s essential to understand the materials that go into making them. Asphalt shingles are made from a combination of the following:

1. Fiberglass or Organic Mat Base

Asphalt shingles start with a strong foundation, which can be either:

  • Fiberglass mat – Made from fine glass fibers, this lightweight material improves fire resistance and durability.
  • Organic mat – A felt-like material made from recycled paper and wood fibers saturated with asphalt for waterproofing.

Most modern shingles use fiberglass because of its strength and fire-resistant properties.

2. Asphalt Coating

The base mat is coated with asphalt, a byproduct of petroleum refining. The asphalt adds waterproofing and durability, ensuring shingles can withstand harsh weather conditions.

3. Mineral Granules

The final layer consists of ceramic-coated mineral granules, which provide several benefits:

  • UV Protection – Prevents sun damage and extends the life of the shingles.
  • Color & Aesthetic Appeal – Available in a variety of colors to match different architectural styles.
  • Algae Resistance – Some granules contain copper or zinc to prevent algae growth.

4. Sealant Strips

To keep shingles secure, manufacturers apply adhesive sealant strips. These strips bond shingles together when exposed to heat, preventing wind uplift and leaks.

Step-by-Step: The Asphalt Shingle Manufacturing Process

The asphalt shingle manufacturing process involves several precise steps to ensure each shingle meets industry standards.

1. Creating the Base Mat

The process begins with the formation of the base material. If using fiberglass, fine glass fibers are spun into a mat and coated with a bonding agent for flexibility and strength. For organic shingles, recycled materials are saturated with asphalt for water resistance.

2. Saturating with Asphalt

Next, the base mat is fed through a series of rollers that apply hot liquid asphalt. This step is crucial because it determines the shingle’s ability to resist moisture and harsh weather. The thickness of the asphalt layer also affects the overall durability of the shingle.

3. Adding Mineral Granules

Once the asphalt coating is applied, mineral granules are embedded into the surface while the asphalt is still hot. These granules not only enhance durability but also give the shingles their final color and UV resistance.

4. Cooling and Cutting

After granules are applied, the shingles are cooled to harden the asphalt. The material is then cut into precise shingle shapes, typically rectangular or architectural styles, before being stacked for packaging.

5. Applying Sealant Strips

A self-sealing adhesive strip is added to the shingles, helping them bond together when installed on a roof. This feature prevents wind damage and increases the lifespan of the roof.

6. Packaging and Quality Control

Before shipment, shingles undergo rigorous quality checks to ensure they meet industry standards, such as those set by the National Roofing Contractors Association (NRCA) (NRCA.org). They are then bundled and sent to roofing distributors and contractors.

how asphalt shingles are made

Why Asphalt Shingles Remain a Top Choice for Roofing

Now that you know how asphalt shingles are made, let’s explore why they continue to be the preferred roofing material.

1. Affordability

Compared to metal or tile roofing, asphalt shingles offer an excellent balance of price and durability.

2. Weather Resistance

High-quality asphalt shingles are designed to withstand extreme weather, from heavy rain to strong winds. Some premium options even have impact-resistant properties.

3. Easy Installation & Repairs

Shingles are lightweight and simple to install, making them a cost-effective choice for homeowners. Repairs are also straightforward if damage occurs.

4. Energy Efficiency

Modern shingles with reflective granules help reduce heat absorption, improving energy efficiency in warmer climates. The U.S. Department of Energy (energy.gov) recommends cool roofing materials to lower cooling costs.

5. Variety of Styles & Colors

Asphalt shingles come in different textures and colors, allowing homeowners to customize their roof’s appearance. Whether you prefer traditional three-tab shingles or dimensional designs, there’s an option for every home.

Choosing High-Quality Asphalt Shingles for Your Roof

Not all shingles are created equal. When selecting roofing materials, it’s essential to consider the following factors:

  • Wind Resistance Ratings – Higher-rated shingles provide better protection against storms.
  • Impact Resistance – Some shingles are designed to withstand hail and debris.
  • Algae & Mold Resistance – Ideal for humid climates where algae growth is common.
  • Warranty Coverage – A strong manufacturer warranty ensures long-term protection.

At Integrity First Construction, we use only the best materials to ensure long-lasting results for your roof. Our team understands the importance of durability, and we stand by our commitment to quality craftsmanship.

Need a Roof Inspection? Get a Free Inspection Now!

If you’re considering a new roof or suspect damage to your existing one, our team is here to help. At Integrity First Construction, we provide free inspections to assess the condition of your shingles and recommend the best course of action.

Don’t wait for small issues to turn into costly repairs. Get a free inspection now and let our experienced team ensure your home stays protected with high-quality asphalt shingles!

SHARE THIS ARTICLE:

Recent Articles & Videos