About Timberline HDZ® RS Shingles

Experience deep, rich shingle colors with the improved Timberline HDZ® RS, the ultimate choice for reflective shingles. Its refreshed color options feature our enhanced EcoDark™ granule technology. These shingles can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code* while also enhancing the curb appeal of your home. Now, get GAF Time-Release Algae-Fighting Technology, with the 25-year StainGuard Plus™ Limited Warranty against blue-green algae discoloration1, critical in hot, and coastal climates like California.



This product can be used to comply with certain FORTIFIED Roof™ requirements. Visit gaf.com/fortified and current FORTIFIED Home™ Standard available at fortifiedhome.org for details. Applicable in the U.S. only.

Fortified roof logo

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Design your roof, your way. Mix and match GAF shingle styles and colors along with siding, trim and doors to create the perfect look for your home.
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Features and Benefits

Warranties & Technologies

Design your roof, your way. Mix and match GAF shingle styles and colors along with siding, trim and doors to create the perfect look for your home.

StainGuard Plus diamond badge

StainGuard Plus™ Algae Protection Limited Warranty

Protect your roof investment with algae resistance so powerful it allows us to offer a 25-year limited warranty against blue-green algae discoloration on many of our most popular products, including Timberline HDZ® Shingles.¹
WindProven diamond badge

WindProven™ Limited Wind Warranty

When installed with the required combination of four qualifying GAF accessories, GAF shingles with LayerLock® technology qualify for the WindProven™ Limited Wind Warranty with no maximum wind speed limitation.2
LayerLock diamond badge

Layerlock® Technology

The StrikeZone® nailing area provides up to 99.9% nailing accuracy. It's so easy to hit that a roofer placed 999 out of 1,000 nails correctly in our test.³
eco dark badge

EcoDark™ Granules

Newly formulated EcoDark™ Granules provide deep, rich colors including Timberline HDZ® RS Charcoal, the darkest highly reflective shingle color available.
¹25-year StainGuard Plus™ Algae Protection Limited Warranty against blue-green algae discoloration is available only on products sold in packages bearing the StainGuard Plus™ logo. See GAF Shingle & Accessory Limited Warranty for complete coverage and restrictions.
²15-year WindProven™ Limited Wind Warranty on Timberline® Shingles with LayerLock® Technology requires the use of GAF Starter Strips, Roof Deck Protection, Ridge Cap Shingles, and Leak Barrier or Attic Ventilation. See GAF Roofing System Limited Warranty for complete coverage and restrictions Visit gaf.com/LRS for qualifying GAF products. For installations not eligible for the WindProven Limited Wind Warranty, see GAF Shingle & Accessory Limited Warranty for complete coverage and restrictions.
³ Results based on study conducted by Home Innovation Research Labs, an independent research lab, comparing installation of Timberline HD® Shingles to Timberline HDZ® Shingles on a 16-square roof deck using standard 4-nail nailing pattern under controlled laboratory conditions. Actual results may vary.
Video Thumbnail of Charcoal Timberline HDZ RS shingles on white home

The Darkest Highly Reflective Shingle

Now you don’t have to settle for dull Charcoal shingles. Newly formulated EcoDark™ Granules provide deep, rich colors including Timberline HDZ® RS Charcoal, the darkest highly reflective shingle color available that can be used to comply with both Title 24 and LA County Green Building Standards Codes.*
*Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations and the Green Building Standards Code of Los Angeles County.
White home with Timberline HDZ RS roof shingles in Charcoal

How to choose roofing shingles

The best roofing shingles for your home will meet your budget, provide the durability your roof needs, and create the curb appeal you want.
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Home Reno 2026 Good Housekeeping winner award

Timberline HDZ® RS recognized by esteemed Good Housekeeping award

We're thrilled to announce Timberline HDZ® RS shingles received the 2026 Good Housekeeping Home Reno Award in the Sustainability Innovators category. The Cool Roof compliant shingles prove to be the ultimate choice for reflective shingles, boasting deep, rich colors and enhanced technologies that boost curb appeal.
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FORTIFIED Roof™

GAF is strengthening its commitment to helping you protect your home with the FORTIFIED Roof™ program, through an alliance with the Insurance Institute for Business & Home Safety, an independent, nonprofit, scientific research and communications organization, to help homeowners withstand devastating weather events.
View FORTIFIED Roof™

Specs & Codes

Specifications
(All Dimensions Are Nominal)
Pieces/Square 64
Bundles/Square 3
Nails/Square¹ 256
Exposure 5 5/8"
Dimensions 13 1/4" x 39 3/8"
Applicable Standards & Protocols
  • Fire - UL Listed to ANSI/UL 790 Class A
  • Wind - ASTM D7158, Class H
  • Wind - ASTM D3161, Class F
  • National - ASTM D3462**
  • National - Classified in accordance with ICC-ES AC438
  • Regional - Miami-Dade County Product Control Approved
  • Regional - State of Florida Approved
  • Regional - Texas Department of Insurance Listed
  • Regional - ICC-ES ESR- 1475
  • Regional - ICC-ES ESR- 3267
  • Special Feature - Cool Roof Rating Council (CRRC) Rated*****
  • Special Feature / Regional - CA Title 24
  • Special Feature / Regional - City of LA / LA County
  • Passes UL 2218 Impact-Resistance Test with Class 3 Rating
**ASTM D3462 - Periodically tested by independent and internal labs to ensure compliance with ASTM D3462 at time of manufacture.
*****Cool Roof Rating Council (CRRC) Rated - Applies to Copper Canyon, Birchwood, and Golden Amber only for Timberline HDZ®.

Product Documentation

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  • Cool Roof Rating
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* Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations
** Meets the Green Building Standards Code of Los Angeles County

Parts of a GAF roofing system

Residential warranties
A pictorial representation of the layers of a GAF roofing system, highlighting the ridge cap shingles, the finishing touch that helps defend against leaks at the hips and ridges.

Ridge cap shingles

The finishing touch that helps defend against leaks at the hips and ridges.
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A pictorial representation of the layers of a GAF roofing system, highlighting the ridge vent layer, which helps to reduce attic moisture and heat.

Attic ventilation

Helps to reduce attic moisture and heat.
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A pictorial representation of the layers of a GAF roofing system, highlighting the rooftop accessories component, designed to enhance the performance of your roof system.

Rooftop accessories

Specialty roofing accessories designed to enhance the performance of your roofing system.
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A pictorial representation of the layers of a GAF roofing system, highlighting the starter strip shingles, which help guard against shingle blow off.

Starter strip shingles

Helps to guard against shingle blow-offs.
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A pictorial representation of the layers of a GAF roofing system, highlighting the roof underlayment layer, which helps shield the roof deck from moisture infiltration.

Roof deck protection

Helps shield the roof deck from moisture infiltration.
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A pictorial representation of the layers of a GAF roofing system, highlighting the leak barrier layer, which helps prevent leaks caused by wind-driven rain and ice dams.

Leak barrier

Helps prevent leaks caused by wind-driven rain and ice dams.
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Frequently Asked Questions

The “RS” in GAF Timberline HDZ® RS Shingles stands for “Reflector Series” shingles. These specific shingles offer customers a reflective shingle line that can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code1.

 

1 Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations and the Green Building Standards Code of Los Angeles County

 

Yes, GAF Timberline HDZ® RS Shingles can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code1.

 

1 Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations and the Green Building Standards Code of Los Angeles County

 

Newly formulated, proprietary EcoDark™ Granules use innovative technology that provides deep, rich colors, including Charcoal, the darkest highly reflective shingle available.

GAF EcoDark™ Granule Technology produces vibrant, dark shingle colors without sacrificing any of the reflective benefits. Featured in all GAF Reflector Series Shingles, this technology allows customers who need to meet the prescriptive requirements of Title 24 a broad range of colors.

Yes, all of the GAF Timberline HDZ® RS Shingles can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code1.

 

1 Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations and the Green Building Standards Code of Los Angeles County

 

Yes, all of the GAF Timberline HDZ® RS Shingles can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code1.

 

1 Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations and the Green Building Standards Code of Los Angeles County

 

GAF Timberline HDZ® RS Shingles can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code1. But this product is also available in Nevada, Arizona, Hawaii and may become more widely available throughout North America as interest in reflective shingles continues to grow in hot, humid, and coastal climates.

 

1 Can be used to comply with the Cool Roof Requirements for steep slope residential buildings of 2025 Title 24, Part 6, of the California Code of Regulations and the Green Building Standards Code of Los Angeles County

 

Cool roofs may help you save on cooling costs. However, energy cost savings are not guaranteed, and the amount of savings may vary based on climate zone, utility rates, radiative properties of roofing products, insulation levels, HVAC equipment efficiency, and other factors.

GAF Timberline HDZ® RS Shingles pass the UL 2218 Impact-Resistance Test with a Class 3 rating1 and may qualify for insurance discounts.2

 

1 Only products sold in packages bearing the UL2218 Class 3 PRI Validation Program statement are rated for Class 3 impact resistance. Testing performed under controlled laboratory conditions by Certerra Analytical - PRI. GAF makes no express or implied warranty about the impact performance of these products against hail. Hail damage is not covered under the limited warranty. See GAF Shingle and Accessory Limited Warranty available at gaf.com/warranties for complete coverage and restrictions.

2 Insurance discounts may not be available in your area. Where available, insurance discounts may vary. Contact your insurance provider for information

 

GAF Timberline HDZ® RS Shingles pass the UL 2218 Impact-Resistance Test with a Class 3 rating1 and may qualify for insurance discounts.2

 

1 Only products sold in packages bearing the UL2218 Class 3 PRI Validation Program statement are rated for Class 3 impact resistance. Testing performed under controlled laboratory conditions by Certerra Analytical - PRI. GAF makes no express or implied warranty about the impact performance of these products against hail. Hail damage is not covered under the limited warranty. See GAF Shingle and Accessory Limited Warranty available at gaf.com/warranties for complete coverage and restrictions.

2 Insurance discounts may not be available in your area. Where available, insurance discounts may vary. Contact your insurance provider for information.

GAF Timberline HDZ® Shingles and GAF Timberline HDZ® RS Shingles are nearly identical:

  • They both feature the same High Definition® shadow lines for exceptional depth and dimension

  • They both pass the UL 2218 Impact-Resistance Test with a Class 3 rating1 and may qualify for insurance discounts2

  • The both feature industry-first technologies and powerful warranties3

 

The biggest difference is the EcoDark™ Granules featured in Timberline HDZ® RS Shingles, offering customers a reflective shingle line that can be used to comply with the Cool Roof Requirements of Title 24 and the LA County Green Building Standards Code. Due to EcoDark™ Granules, color options between Timberline HDZ® Shingles and Timberline HDZ® RS Shingles will vary.

 

1 Only products sold in packages bearing the UL2218 Class 3 PRI Validation Program statement are rated for Class 3 impact resistance. Testing performed under controlled laboratory conditions by Certerra Analytical - PRI. GAF makes no express or implied warranty about the impact performance of these products against hail. Hail damage is not covered under the limited warranty. See GAF Shingle and Accessory Limited Warranty available at gaf.com/warranties for complete coverage and restrictions.

2 Insurance discounts may not be available in your area. Where available, insurance discounts may vary. Contact your insurance provider for information.

3 See GAF Shingle & Accessory Limited Warranty for complete coverage and restrictions.