GAFArchitectural — Class 4

Timberline® AS II

ArmorShield II Shingles provide protection and potential insurance savings.

Warranty
Lifetime Limited
Wind
No wind speed limit (with required accessories)
Impact
Class 4
Algae
25-year StainGuard Plus™ Algae Protection Limited Warranty
Timberline AS II — GAF asphalt shingle product image

About the Timberline AS II

Timberline® ArmorShield II Shingles are made with our proprietary SBS-modified asphalt formulation and pass UL’s toughest impact-resistance test—UL 2218 Class 4. This means they can withstand tough weather conditions while also saving you money on insurance through potential discounts. They come with advanced GAF Time-Release Algae-Fighting Technology, providing effective protection against blue-green algae stains, along with a 25-year StainGuard Plus™ Algae Protection Limited Warranty.

Key Features

  • SBS-modified asphalt formulation for enhanced flexibility and impact resistance
  • Eligible for potential insurance discounts due to Class 4 rating
  • GAF Time-Release Algae-Fighting Technology for long-lasting beauty
  • LayerLock® Technology for superior wind performance

Available Colors

7 options
Timberline AS II in Charcoal — GAF asphalt shingle
Selected color
Charcoal

Timberline AS II: The ADC Roofing Deep Dive

The Timberline® AS II shingle is engineered for peak performance, prioritizing impact resistance and durability, which are critical attributes for homes in storm-prone regions. Its proprietary SBS-modified asphalt formulation is the cornerstone of its strength, allowing the shingle to absorb impacts more effectively than traditional asphalt shingles. This advanced material is why it passes the stringent UL 2218 Class 4 impact-resistance test, a benchmark for protection against severe weather events. This Class 4 rating offers more than just enhanced protection; it often translates into tangible financial benefits for homeowners. Many insurance carriers recognize the superior resilience of Class 4 roofs, offering potential discounts on premiums. For DFW area homeowners, where hail damage is a significant concern, opting for Timberline® AS II can lead to substantial long-term savings and peace of mind during storm seasons. It’s an investment that pays dividends in both security and cost efficiency. Beyond impact resistance, the Timberline® AS II incorporates GAF Time-Release Algae-Fighting Technology. This feature, backed by a 25-year StainGuard Plus™ Algae Protection Limited Warranty, actively combats the unsightly blue-green algae that can discolor roofs in humid environments. The continuous release of algae inhibitors ensures the roof maintains its aesthetic appeal without regular intervention, preserving its curb appeal for decades. LayerLock® Technology further enhances the shingle's wind performance, allowing for a no-wind-speed-limit warranty when installed with required accessories. This robust wind resistance, combined with its impact durability and algae protection, makes the Timberline® AS II a comprehensive roofing solution for homeowners who demand the highest level of protection and longevity from their investment.

Why Timberline AS II Fits DFW Roofs

The UL 2218 Class 4 impact resistance rating is a significant advantage for DFW homeowners, directly addressing the impact of severe hail and potentially leading to insurance premium discounts. Its robust design is well-suited to the extreme DFW weather cycle, from high summer heat to formidable storms, ensuring long-term durability. HOAs often prioritize durable, aesthetically pleasing roofs, which the Timberline AS II delivers.

How ADC Installs Timberline AS II

ADC Roofing's certified crews install Timberline® AS II shingles precisely, leveraging LayerLock® Technology to achieve the highest wind performance and ensure eligibility for a no-wind-speed-limit warranty. We prioritize correct fastening and accessory application specified by GAF to maximize both impact resistance and the 25-year StainGuard Plus™ warranty. Our attention to detail ensures your DFW home receives the full protective benefits intended by the manufacturer.

Timberline AS II — Frequently Asked Questions

Q.What does SBS-modified asphalt mean for a DFW roof?

SBS-modified asphalt makes shingles more flexible and resilient, especially in extreme temperatures and during hail impacts. For DFW, this means the Timberline® AS II can better withstand the cycling between intense summer heat and potential winter freezes, as well as significant hail events.

Q.Can a Class 4 rating truly save me money on insurance in DFW?

Yes, many insurance carriers operating in DFW, including State Farm and USAA, offer discounts on homeowner's insurance premiums for roofs with a UL 2218 Class 4 impact resistance rating. It signifies a lower risk of damage, leading to potential savings. Always confirm with your specific provider.

Q.How does the no-wind-speed-limit warranty apply to DFW's severe storm seasons?

When Timberline® AS II shingles are installed by an ADC certified crew with the specified GAF accessories and LayerLock® Technology, they are eligible for a no-wind-speed-limit limited warranty. This offers superior protection against the high winds experienced during DFW's thunderstorms and tornadic activity.

Q.Is the 25-year StainGuard Plus™ Algae Protection effective against algae growth in DFW's humidity?

Absolutely. The GAF Time-Release Algae-Fighting Technology actively releases copper and zinc particles that inhibit the growth of blue-green algae. This is highly effective in DFW's humid climate, preventing unsightly dark streaks and preserving your roof's appearance for years.

Q.Will installing Timberline® AS II impact attic ventilation requirements for my DFW home?

While the shingle itself doesn't change fundamental ventilation needs, maximizing attic ventilation is crucial for DFW homes to complement any roofing material, including AS II. Proper ventilation helps remove heat and moisture, extending the roof's lifespan and improving overall energy efficiency.

About GAF

GAF is a leading manufacturer of asphalt shingle roofing products. ADC Roofing is a certified GAF installer serving the entire Dallas–Fort Worth Metroplex, with in-house crews trained on GAF's installation specifications and warranty requirements.

We stock Timberline AS II samples in our Southlake showroom and can deliver full-size color chips to your home. Every GAF installation from ADC includes manufacturer-certified underlayment, ridge ventilation, and starter strip — a complete factory-spec system.