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GAF Timberline Shingles

GAF Timberline Shingles: HDZ, UHDZ, AS II and NS

Timberline is North America's best-selling shingle family, and the version you choose matters in hail country. Two Timberline lines are Class 4; the most common one is Class 3.

Timberline compared

LineImpact (per GAF)How it gets therePick it if…
Timberline HDZClass 3LayerLock and StrikeZone nailingYou want the standard, with our Class 3 minimum met
Timberline UHDZClass 4UltraMat fiberglass mat; thicker, Dual Shadow LineYou want the premium look and Class 4
Timberline AS IIClass 4SBS-modified asphaltYou want a flexible, rubberized Class 4 shingle
Timberline NSClass 3Natural, even-toned shadow lookYou prefer a subtle, flatter look

HDZ also comes in Bold Definition, Harvest Blend and RS (recycled-content) versions.

Product names, ratings and features are as published by the manufacturer and can change. We confirm the current rating and warranty of the exact product before we order it.

UHDZ or AS II?

Both are Class 4. UHDZ is thicker with a more dramatic shadow line and gets its rating from its mat. AS II gets its rating from SBS-modified asphalt, which stays flexible. GAF also notes AS II can be used toward certain IBHS FORTIFIED Roof requirements. Texas insurers must offer a premium credit for UL 2218 impact-rated roofs, but each company sets its own amount, and Class 4 earns the largest. We can't promise a discount; ask your insurer for their figure in writing. After a qualifying install we fill out TDI Form PC068 for you.

Getting the full warranty

Every major shingle maker ties its best warranty to its own accessories: starter strip, hip and ridge, underlayment and ventilation. We install the matched system to the manufacturer's instructions, photograph the components, and give you the paperwork. Every inspection comes with a free digital photo report, so you see what we see.

Want more curb appeal? See GAF designer shingles.

Residential warranty: a 10-year transferable workmanship warranty, with manufacturer warranties up to lifetime. Manufacturer coverage depends on the product and brand, and on the project qualifying for that manufacturer's program. We put the exact warranty for your roof in writing.

Certified, with 30 years installing every major roofing brand, a family roofing business going back 75 years, and over $80 million in completed roofing projects. 5.0 stars on Google at all three of our offices.

Request a free inspection or call (817) 733-9228. Small repairs are welcome too.

Frequently asked questions

Is GAF Timberline HDZ Class 4?

No. GAF lists Timberline HDZ as Class 3. Timberline UHDZ and Timberline AS II are its Class 4 lines.

What is the difference between UHDZ and AS II?

Both are Class 4. UHDZ uses GAF's UltraMat and has a thicker Dual Shadow Line; AS II uses SBS-modified asphalt.

Do you install GAF Timberline?

Yes. We have 30 years installing every major brand.

Get a free roof inspection

We get on the roof, photograph what we find, and tell you plainly whether you need a repair or a replacement.

📞 (817) 733-9228