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GAF Premium Roofing Shingles

Nothing Protects Quite Like A Roof. And no warranties can cover your home quite like GAF's Lifetime Roofing System

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Maryland Roofing, Siding & Windows, LLC Master Elite Roofers

We install only the Best Shingles

More homeowners in North America rely on Timberline Shingles than any other brand. They offer just the right combination of beauty, performance, and reliability. Now with GAF Time-Release Algae-Fighting Technology and LayerLock Technology, Timberline HDZ offers everything you can expect from an architectural shingle roof, and more.

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GAF What to Know

We're Here To Help

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View shingle styles and colors on a picture of your house or one like yours.

Maryland Roofing, Siding & Windows, LLC Images What Goes into a Roof? Maryland Roofing, Siding & Windows, LLC Images

See everything that goes into the roof over your head. Spoiler alert: It's a lot more than shingles.

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Compare warranties with our GAF Limited Warranty Comparison Guide.

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Guidance on roof inspection and how to spot signs of damage.

GAF America's #1 Selling Shingle

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GAF Premium Shingles

Show your style with America's #1 shingle

When you choose GAF, you're in good company. More Americans have relied on GAF shingles than any other brand. With the strongest warranties in the industry you can have peace of mind knowing you are covered.

From the Grand Sequoia with its wood shake look, Royal Sovereign's beauty and performance, to the #1 selling shingle in North America, Timberline HDZ we have the perfect shingle for your house

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GAF Trusted Protection

Warranties To Protect Your Investment

Get the protection you want with a GAF warranty. When you hire Maryland Roofing, Siding & Windows, LLC you can take advantage of our strongest warranties for long term peace of mind. We offer several options, so you can choose the right level of coverage for your project.

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GAF Time-Release Algae-Fighting Technology

25-year limited warranty against blue-green algae discoloration

Algae Protection from Eave to Ridge

Time-Release Algae-Fighting Technology is proprietary to GAF. Specially engineered capsules are infused throughout with thousands of copper microsites. These breakthrough capsules release algae-fighting copper efficiently, over time, for long-lasting algae-fighting power.

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