Timberline® AS II Shingles | Big League Roofers

Made with Proprietary SBS-Modified Asphalt Formulation

Timberline® ArmorShield II Shingles are pass UL’s toughest impact-resistance test—UL 2218 Class 4.

Timberline^® ArmorShield II — the UL 2218, Class 4 impact resistant shingle that provides protection and potential insurance savings.

Timberline® AS II Shingles are made with our proprietary SBS-modified asphalt formulation and pass UL’s toughest impact-resistance test — UL 2218 Class 4¹. That means they can really take a punch from Mother Nature.

These shingles feature revolutionary GAF Time-Release Algae-Fighting Technology to help protect against blue-green algae stains, backed by a 25-year StainGuard Plus™ Algae Protection Limited Warranty. They’re also eligible for the WindProven™ Limited Wind Warranty with no wind speed limit when installed with four required accessories.

This product can be used to comply with certain FORTIFIED Roof™ requirements. Visit gaf.com/fortified and current FORTIFIED Home™ Standard available at fortifiedhome.org for details. Applicable in the U.S. only.

StainGuard Plus™ Algae Protection Limited Warranty

Protect your roof investment with algae resistance so powerful it allows us to offer a 25-year limited warranty against blue-green algae discoloration on many of our most popular products, including Timberline HDZ^® Shingles.

WindProven™ Limited Wind Warranty

When installed with the required combination of four qualifying GAF accessories, GAF shingles with LayerLock^® technology qualify for the WindProven^™ Limited Wind Warranty with no maximum wind speed limitation.

Layerlock^® Technology

The StrikeZone^®nailing area provides up to 99.9% nailing accuracy. It’s so easy to hit that a roofer placed 999 out of 1,000 nails correctly in our test.

SBS-Modified Asphalt

These shingles are made with our proprietary SBS-modified asphalt formulation and pass UL’s toughest impact-resistance test — UL 2218 Class 4. That means they can really take a punch from Mother Nature.

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A Roofing System Built to Protect

Timberline AS^® shingles offer a combination of beauty and benefits that go beyond. High-performance technology enhances the shingle at its core and achieves UL 2218 Class 4 impact-resistance rating. When installed as a complete roofing system, it helps reduce risk, improve roof performance, and support a longer-lasting result.

Key components of a complete shingle roofing system:

Roof deck preparation
Underlayment
Leak barriers / ice barrier protection
Starter strips
Field shingles
Hip & ridge caps
Ventilation components
Edge details and accessory components