What Are Fiberglass Shingles?
Fiberglass shingles are a modern type of asphalt shingle. They’re made with a woven fiberglass base mat, coated in asphalt to keep out moisture, and topped with mineral granules to protect against UV rays. Years ago, asphalt shingles used an organic mat base made from recycled paper materials. Today, most asphalt shingles use a fiberglass base instead.
Because they require less asphalt, fiberglass shingles are lighter and more environmentally friendly than older organic-mat shingles. They’re also tough, non-porous, and won’t warp or dry out over time.
How Much Do Fiberglass Shingles Cost?
Fiberglass shingles tend to cost a little more than older organic-mat shingles but offer better long-term value. You can expect to pay between $3.50 to $8.50 per square foot (or $350 to $850 per roofing square) for fiberglass shingles. For a standard 2,500-square-foot roof, that works out to about $8,750 to $21,250, depending on the shingle style and quality.
These prices include materials and labor but don’t cover extra costs like roof removal, gutters, or repairs.
Fiberglass Shingle Roof Cost by Roof Size
Your total cost will mostly depend on the size of your roof. Here’s a quick look at average costs by roof size:
| Roof Size (Square Feet) | Average Installation Cost Range |
|---|---|
| 1,000 | $3,500 to $8,500 |
| 1,500 | $5,250 to $12,750 |
| 2,000 | $7,000 to $17,000 |
| 2,500 | $8,750 to $21,250 |
| 3,000 | $10,500 to $25,500 |
These estimates include materials and labor but may increase if extra services are needed.
Types of Fiberglass Shingles
Homeowners usually choose between two main types of fiberglass shingles:
3-Tab Shingles
These are the most affordable option. Each shingle has three tabs, giving your roof a flat, uniform look. They’re lightweight and easy to install but offer less thickness and wind resistance than premium options. Average installation costs range from $3.50 to $5 per square foot.
Architectural Shingles
Also called dimensional shingles, architectural shingles are a step up in quality. They’re thicker and layered to create a textured, high-end look that mimics natural materials like slate or wood shakes. They’re more durable and weather-resistant. Average installation costs range from $4 to $8.50 per square foot.
Additional Cost Factors
Several other factors can affect your total installation cost:
- Roof Removal: If your roof has two or more layers of old shingles, your contractor will need to remove them. This adds to the total cost.
- Roof Pitch and Complexity: Steeper or complex roof designs may require extra labor and equipment, increasing your project cost.
- Underlayment and Accessories: You may also need underlayment, flashing, drip edge, or ventilation upgrades to ensure a quality installation.
- Regional Labor Costs, Permits, and Repairs: Labor costs vary by region. You may also need permits or roof repairs before installation.
Fiberglass Shingles vs. Organic-Mat Asphalt Shingles
Both fiberglass and organic-mat shingles are asphalt-based. The main difference is the base material. Older asphalt shingles used an organic mat made from paper products, while today’s fiberglass shingles use a fiberglass mat.
This upgrade makes fiberglass shingles more water-resistant, fire-resistant, and lighter. They also last longer in warm climates but may be a little less durable in extremely cold weather.
When it comes to appearance, there’s no difference — they look the same on your roof.
Energy-Efficient Fiberglass Roofing
Fiberglass shingles are a more eco-friendly roofing option. They use less asphalt than organic-mat shingles and are lighter, making them easier to produce and transport. Many options also feature cool roof technology that reflects sunlight and helps lower your cooling costs. Look for shingles with an ENERGY STAR® rating to maximize energy savings.
How Long Do Fiberglass Shingle Roofs Last?
A fiberglass shingle roof typically lasts 25 to 50 years, depending on material quality and your local climate. In comparison, older organic-mat asphalt shingles usually last around 15 years. Higher-end shingles often come with longer warranties.
How to Save Money on Fiberglass Shingle Costs
Here are a few ways to reduce your roofing costs without sacrificing quality:
- Get Multiple Quotes. Always compare estimates from at least three contractors.
- Schedule in the Off-Season. Roofing costs may be lower in late fall or winter.
- Bundle Home Projects. Some contractors offer discounts if you combine roof work with gutters, fascia, or insulation projects.
- Consider Roof-Over Installation. If your roof has only one layer of shingles and is in decent shape, new shingles may be installed over the old ones, saving you tear-off costs.
DIY vs. Professional Installation
You may wonder if you can save money by installing your shingles yourself. But roofing is not a safe or simple DIY project. It requires skill, proper tools, and knowledge of local building codes. Mistakes can lead to leaks, void warranties, and even personal injury.
Hiring a licensed roofing contractor ensures the job is done right and keeps your home protected for years to come.
Hiring a Fiberglass Roofing Contractor
Finding the right contractor is one of the most important parts of your roofing project. Modernize can help make the process easier. We can connect you with up to four local, vetted roofing contractors so you can compare quotes and services. That way, you can make an informed choice and hire the right pro for your project.
Are Fiberglass Shingles Right for Your Climate?
Hot Climates
Fiberglass shingles hold up well in areas with long, hot summers, like Austin, Texas. However, high heat can shorten their lifespan over time. Warranties typically range from 15 to 50 years and may vary depending on your local weather.
Cold Climates
In freezing temperatures, fiberglass shingles can become brittle and crack. Ice buildup may worsen small cracks. In damp or subtropical areas, algae and fungus may also cause damage. You can choose algae-resistant shingles with ceramic granules coated in copper to prevent moss and algae growth. This feature may add about 10% to 15% to your installation cost.
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