~33.33 sq ft per bundle; three-bundle square math per GAF HDZ RS docs
Key features
Reflector Series Hickory SKU; verify bundle label against standard HDZ Hickory
CRRC-rated HDZ RS line with Title 24-oriented GAF documentation
Technical specifications
| Thickness | 2.4 in |
|---|---|
| Width | 13.25 in |
| Length | 39.375 in |
| Coverage | 33.33 sq ft/pack |
| Material | Fiberglass-reinforced asphalt architectural laminate with cool-roof reflective surfacing (Timberline HDZ RS / Reflector line per GAF documentation) |
| Fire rating | UL Class A fire classification (ANSI/UL 790) per GAF Timberline HDZ RS line documentation |
| Construction type | Laminated architectural strip shingle (Timberline HDZ Reflector / HDZ RS) |
| Application area | Steep-slope asphalt shingle roof systems installed per GAF requirements; WindProven limited wind warranty requires qualifying GAF accessory system; cool roof compliance is project- and jurisdiction-specific per published datasheets |
Product details
Hickory on HDZ RS preserves a warm red-brown roof character while positioning the project within GAF’s reflective roofing documentation pathway for markets where that matters.
Technical references should follow the Timberline HDZ RS specification sheet, which is the correct document for CRRC-related language and Title 24–oriented references published for the line.
Retail naming that includes “Reflector Series” can create procurement confusion; standardize internal purchasing on model numbers and verified bundle labels to prevent mixed packaging on the same roof area.
Coverage assumptions commonly track near 33.33 square feet per bundle; complex roof geometry still demands explicit waste planning beyond simple multiplication.
Installation quality determines whether reflective granule performance matters in practice: poor deck preparation, overdriven nails, and misaligned courses create failures that no granule technology can compensate for.
Accessory systems matter for wind warranty narratives; document what was installed and where, especially on production schedules with multiple crews.
For submittals, lead with manufacturer literature revision dates and keep a clean chain of documentation from bid to inspection.
Documents & certifications
Technical data sheet
Manufacturer-tested R-value, coverage, fire notes, and handling—use for submittals, RFIs, and field QA.
Download PDF (opens in new tab)Certifications & compliance
UL 790 Class A fire; UL 2218 Class 3 impact resistance; CRRC rated; ASTM D3462, D7158, D3161, D3018 Type I (per GAF Timberline HDZ RS specification sheet)
Frequently asked questions
How many bundles are in a square for Timberline HDZ Reflector?
How many bundles are in a square for Timberline HDZ Reflector?
GAF documents Timberline HDZ RS (Reflector) shingles at about 33.33 sq ft per bundle with three bundles per square (100 sq ft) for the line. Always confirm coverage on the physical bundle label and add waste for cuts and details.
What is WindProven and does it apply automatically?
What is WindProven and does it apply automatically?
WindProven is GAF's limited wind warranty with no maximum wind speed when the roof is installed with four qualifying GAF accessory products per current GAF program rules. Eligibility is not automatic from the shingle alone.
Do Timberline HDZ Reflector shingles satisfy cool roof or Title 24 requirements?
Do Timberline HDZ Reflector shingles satisfy cool roof or Title 24 requirements?
GAF markets Timberline HDZ RS as CRRC rated and references pathways such as California Title 24 Part 6 cool roof requirements in its product literature. Final compliance depends on color SKU, climate zone, and the exact code edition—use the current HDZ RS specification sheet and local amendments for submittals.
Can I mix Reflector colors or SKUs across the same roof plane?
Can I mix Reflector colors or SKUs across the same roof plane?
For appearance and warranty continuity, use consistent product lines and approved blends within a roof area. For warranty-backed projects, follow GAF's written guidance and contract documents rather than field-mixing unmatched SKUs.