Roofing options compared
CertainTeed Landmark vs GAF Timberline HDZ
CertainTeed Landmark and GAF Timberline HDZ are both in the shingle brand category. CertainTeed Landmark is a dual-layer architectural asphalt shingle with deep color blends. GAF Timberline HDZ is the top-selling architectural asphalt shingle line in North America. The right pick depends on whether you prioritize dimensional looks and color depth or the safe, widely-available default.
Feature comparison
| Feature | CertainTeed Landmark | GAF Timberline HDZ |
|---|---|---|
Material | Architectural asphalt (dual-layer) | Architectural asphalt |
Wind rating | Up to 130 mph | Up to 130 mph (LayerLock) |
Impact rating (UL 2218) | Class 3 (Class 4 on Landmark IR) | Class 3 (Class 4 on IR lines) |
Warranty | Lifetime limited | Lifetime limited |
Price tier | Mid | Mid |
Best for | dimensional looks and color depth | the safe, widely-available default |
Source: CertainTeed product data (2026); GAF product data (2026). Specs and costs are typical ranges; confirm current specifics with the manufacturer or your contractor.
Where each one wins
Two-piece (dual-layer) construction gives a dimensional look and solid durability. Best for: dimensional looks and color depth.
The most widely installed architectural shingle, so nearly any roofer can install and warranty it. Best for: the safe, widely-available default.
Common questions
What's the difference between CertainTeed Landmark and GAF Timberline HDZ?
CertainTeed Landmark is a dual-layer architectural asphalt shingle with deep color blends. GAF Timberline HDZ is the top-selling architectural asphalt shingle line in North America. Where CertainTeed Landmark wins: two-piece (dual-layer) construction gives a dimensional look and solid durability. Where GAF Timberline HDZ wins: the most widely installed architectural shingle, so nearly any roofer can install and warranty it.
Which is better, CertainTeed Landmark or GAF Timberline HDZ?
Neither is universally better. CertainTeed Landmark is best for dimensional looks and color depth; GAF Timberline HDZ is best for the safe, widely-available default. Match the choice to what matters most for your home.
How does storm damage factor into this?
If your roof was under a recent hail or wind storm, that is what turns a repair into an insurance claim. A free RoofWorks report documents the exact NOAA storm event (date and hail size) recorded for your address, which is the evidence adjusters look for. Only an inspection confirms actual damage.
Compare more roofing options. RoofWorks shows hail exposure from the storm record; only an inspection confirms roof damage.