GAF Timberline HDZ vs Owens Corning Duration 2026
When to choose GAF Timberline HDZ.
- You want the WindProven limited wind warranty with no maximum wind speed cap (full GAF system install required).
- You want the widest color library on the market (33 colors across HD and Bold Definition collections).
- Your contractor is GAF Master Elite certified for the Golden Pledge lifetime warranty.
- You value the wide StrikeZone nailing area for faster, more forgiving installs.
- Home Depot is your closest retailer and you are sourcing materials locally.
When to choose Owens Corning Duration.
- You want the SureNail triple-layer nailing strip your contractor prefers.
- You buy through Lowe's or an Owens Corning Platinum supply house.
- You prefer the muted, earthy color range (Driftwood, Sand Castle, Sand Dune).
- Your contractor is an Owens Corning Platinum Preferred installer for the longest workmanship coverage.
- You want a slightly heavier dimensional look at the same warranty tier.
| Category | GAF Timberline HDZ | Owens Corning Duration |
|---|---|---|
| Material cost / square | $132-140 Home Depot retail | $140-150 Lowe's retail GAF $8 per square cheaper at retail |
| Weight per square | 240 lbs Heaviest in class | 230 lbs Dual-laminate construction HDZ heavier by 10 lbs/sq |
| Wind rating | 130 mph WindProven unlimited with full GAF system | 130 mph Standard install with starter strip HDZ stronger warranty terms with full-system install |
| Hail / impact | Class 3 UL 2218 | Class 3 UL 2218 (FLEX upgrades to Class 4) Tie at base; Duration FLEX offers Class 4 upgrade path |
| Fire rating | Class A ASTM E108 | Class A ASTM E108 Tie |
| Material warranty | Lifetime limited Extends to 50yr non-prorated with Master Elite | Lifetime limited Extends with Platinum installer Both lifetime; contractor cert tier matters more than brand |
| Algae warranty | 25 yrs StainGuard Plus (copper-infused) | 25 yrs StreakGuard Tie at current product spec |
| Color count | 33 HD + Bold Definition + regional | 19 TruDefinition Duration platform GAF wider palette |
Both are pre-loaded in the visualizer. Upload a photo, pick the one that fits the way your house actually sits in the sun.
The questions People Also Ask on Google for this comparison, answered without sales spin.
Both are top-tier architectural asphalt shingles. GAF wins on wind warranty terms and color count. Owens Corning wins on the SureNail nailing strip and slightly heavier feel. For most homeowners, contractor certification level matters more than which brand you choose.
Generally yes. GAF Timberline HDZ typically runs $8 per square cheaper at retail than Owens Corning Duration. On a 30-square home, that is about $240 in material cost. Installed pricing varies by contractor labor and accessory choices.
GAF, when installed as a full GAF system. The WindProven Limited Wind Warranty has no maximum wind speed cap, which is unmatched in the asphalt category. Both shingles are 130 mph rated out of the box.
GAF Timberline HDZ has 33 colors across the HD and Bold Definition collections. Owens Corning Duration has 19 on the TruDefinition platform. For homeowners who prioritize color choice, GAF wins.
Yes, if your contractor installs Owens Corning regularly. The triple-layer nailing strip is the install confidence-builder OC marketing emphasizes. In practice, it slightly reduces blow-off risk and is preferred by contractors who have learned its placement.
Insurance cares about wind rating and hail rating, not brand. Both are 130 mph and Class 3 hail. For Class 4 impact discounts, you would need Duration FLEX (Owens Corning) or a similar impact-rated variant; GAF Timberline AS II covers this need in some markets.