Timberline HDZ RS
The impact-resistant version of the best-selling Timberline HDZ. Features SBS-modified asphalt for Class 4 impact rating, plus all the LayerLock technology benefits.
Key Features
- Class 4 Impact Resistance (highest rating)
- SBS-modified asphalt for flexibility
- LayerLock technology
- StrikeZone nailing area
- Dura Grip adhesive sealant
- StainGuard Plus algae protection
- WindProven warranty eligible
Specifications
unlimited
Wind Rating
Class 4
Impact Rating
Class A
Fire Rating
260 lbs
Per Square
30-50 years
Expected Lifespan
$135-$165
per square
StainGuard Plus
Pros
- Class 4 impact rating - highest available
- May qualify for insurance discounts
- WindProven warranty with no speed limit
- All benefits of standard HDZ
Cons
- Higher cost than standard HDZ
- Heavier than standard shingles
- Fewer color options
Regional Performance
Best for areas with hail and ice storms
Good hail protection plus algae resistance
Essential for hail-prone regions
Excellent for monsoon hail storms
Good but less hail risk here
WindProven + impact resistance
Installation Notes
- Use GAF starter strips
- 6-nail pattern recommended
- Ensure proper attic ventilation
- Handle carefully in cold weather
Best For
Warranty Coverage
- Material
- Lifetime Limited
- Workmanship
- Up to 25 years
- Wind Speed
- WindProven - No Maximum Speed Limit
- Algae Resistance
- 25 years
- Prorated
- No
- Transferable
- Yes
Available Colors (6)
Charcoal
Pewter Gray
Slate
Weathered Wood
Barkwood
HickoryAbout GAF
GAF is North America's largest roofing manufacturer, producing shingles and roofing materials for residential and commercial applications. Founded in 1886, GAF has grown to become the industry leader with manufacturing facilities across the United States.
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