Are CertainTeed Landmark Shingles Class 3 or 4?

Impact ratings play a major role in determining how well a roof will withstand storms, hail, and long-term wear. As homeowners compare roofing options, the construction, durability, and performance of the materials become crucial factors—especially when evaluating higher-quality products like CertainTeed’s Landmark line. But are CertainTeed Landmark shingles Class 3 or 4 in regard to impact? 

In this guide, we’ll break down their impact classifications, what those ratings actually mean, and who to call to install the most suitable option for your home.

Breaking Down CertainTeed’s Roof Impact Ratings

Impact ratings tell you how well a shingle can resist damage from hail and other falling debris. These ratings are determined through UL 2218 testing, in which steel balls are dropped from specific heights to simulate real hail impacts. The higher the rating, the stronger and more durable the shingle.

Different elements influence a shingle’s rating, including its thickness, materials, granule adhesion, and internal reinforcement. Some Landmark products are engineered for mid-level impact protection, while others offer an upgraded structure designed for maximum durability. To better understand impact performance, consider these core factors:

• Material Design: Stronger fiberglass mats improve flexibility and resistance.

• Layer Thickness: Multi-layer shingles absorb more impact force.

• Manufacturing Enhancements: Advanced polymer blends boost performance.

All these components come together to determine a shingle’s real-world durability and how well it can shield your home from unpredictable weather in Maryland.

Class 3 vs Class 4: What’s the Real Difference?

When comparing Class 3 shingles vs Class 4, the primary difference is how much impact force each type can withstand before cracking or breaking. Class 3 shingles are tested to handle impacts comparable to 1.75-inch hail, while Class 4 shingles withstand larger 2-inch hail—the highest rating possible. Class 4 shingles often use upgraded materials or reinforced construction to achieve this top-tier strength. As a result, Class 4 products generally offer better long-term durability, fewer repairs, and may even qualify for insurance savings depending on your provider.

Are CertainTeed Landmark Shingles Class 3 or 4?

Understanding which rating CertainTeed’s Landmark shingles fall under is essential when choosing long-term protection for your home.

CertainTeed Class 3 Shingles

CertainTeed’s standard Landmark shingles fall into the Class 3 category, meaning they are built to handle moderate hail impact and everyday weather challenges. These shingles use a tough fiberglass base and a dual-layer design that provides reliable strength for most Maryland homes. They also maintain strong wind ratings and Class A fire protection, making them a dependable mid-range option. For homeowners seeking solid performance without stepping into the highest tier, the CertainTeed Landmark Class 3 shingles remain one of the most popular choices.

CertainTeed Class 4 Shingles

For maximum impact protection, CertainTeed offers upgraded Class 4 versions. These include Landmark ClimateFlex and Landmark TL, both engineered with advanced materials that help them withstand larger hail strikes and more severe weather. ClimateFlex uses polymer-modified asphalt for rubber-like flexibility, while Landmark TL adds triple-laminated strength for superior defense. These CertainTeed Landmark Class 4 shingles are ideal for homeowners seeking the highest level of durability and the most extended roof life possible.

Why Material Construction Matters More Than You Think

A shingle’s impact rating is only one part of its overall performance—the way it’s built plays an even bigger role in how well it stands up to weather, aging, and long-term exposure.

Weather Resistance Impact

High-quality construction helps a shingle maintain its structure during wind uplift, temperature swings, and hail impact. Materials such as reinforced fiberglass mats and modified asphalt blends make the shingle more flexible and less prone to cracking under stress. This is essential for roofs in climates with sudden or intense weather fluctuations.

Durability Over Time

As shingles age, their ability to resist cracking, curling, and granule loss depends heavily on how they were manufactured. Added lamination layers, strong adhesives, and precise granule application all contribute to a longer-lasting roof. Better construction means the shingle will protect your home more effectively for many years.

Fire Safety Performance

The materials and layering process directly influence a shingle’s fire rating. CertainTeed’s shingles are good because they use heat-resistant granules and carefully engineered mats that provide Class A fire protection. This gives homeowners additional peace of mind, knowing the roof is built to meet the highest level of safety standards.

Get Long-Term Roof Protection and Quality With Restoration Roofing Co.

When you choose Restoration Roofing Co., you're choosing a team that treats your home like its own. As a trusted roofing contractor in Maryland, we offer full roof replacements, installing premium CertainTeed materials to their highest standards. Our installations are done with precision, care, and manufacturer-backed techniques that ensure long-term durability and protection. Homeowners rely on us because we stand behind every roof we build—and we make them last for decades.

Why Maryland Homeowners Trust Us

Our team is known for reliability, transparency, and craftsmanship that matches the reputation we’ve built across the state. This level of trust stems from consistent quality and industry recognition, as well as from homeowners who choose us year after year.

Here’s what sets us apart:

• SELECT ShingleMaster Certification: This certification ensures every installation meets CertainTeed’s highest standards.

• BBB Accreditation: Our accreditation reflects our commitment to honesty, professionalism, and customer care.

• 2025 Nextdoor Neighborhood Winner: Community members repeatedly vote for us because they trust our work and service.

These achievements show our dedication to delivering roofing excellence backed by the strongest credentials in the industry. When you hire Restoration Roofing Co., you're choosing quality, reputation, and long-term peace of mind.

Final Thoughts on Selecting the Right Shingle for Your Home

Choosing the right shingle comes down to understanding what level of protection your home needs. Whether you're selecting a Class 3 option for reliable everyday durability or a Class 4 shingle for maximum impact resistance, the right product paired with expert installation makes all the difference. Restoration Roofing Co. ensures your new roof is built with quality materials, installed to manufacturer specifications, and designed to protect your home for years to come.

If you're ready to upgrade your home with a roof built for long-term strength, get a free estimate on roofing with Restoration Roofing Co. today!