Question 1

Why does TMC only install GAF Reflector Series (RS) shingles?

Accepted Answer

California's Title 24 energy code requires reflective cool-roof shingles on most residential replacements and new construction. The Reflector Series — Timberline HDZ® RS and Grand Sequoia® RS — are GAF's two cool-roof lines that pass Title 24, Cool Roof Rating Council (CRRC) certification, and the LA County Green Building Code. By specializing in just these two products, TMC installs them faster, sources them more reliably, and warranties them better than contractors juggling 10+ SKUs.

Question 2

What is California Title 24 and how does it affect my roof?

Accepted Answer

Title 24, Part 6 is the California Code of Regulations covering building energy efficiency. For most residential roof replacements and new builds, it requires CRRC-listed cool-roof shingles with specific solar reflectance and thermal emittance values. Both Timberline HDZ® RS and Grand Sequoia® RS meet Title 24 in every color, including dark colors like Charcoal — historically the hardest to make reflective. Skipping Title 24 compliance often means the work fails the final building inspection.

Question 3

What's the difference between Timberline HDZ RS and Grand Sequoia RS?

Accepted Answer

Timberline HDZ® RS is the architectural cool-roof — standard 3-tab-style profile, 7 colors, lower price point, the workhorse for most SoCal homes. Grand Sequoia® RS is the designer cool-roof — wood-shake-look profile, 5 colors, Class 4 impact rating (highest possible, may qualify for insurance discount), upscale aesthetic for Mediterranean / Spanish / custom homes. Both meet Title 24 + LA County Green Building Code.

Question 4

What is Class 4 impact rating, and why does it matter for Grand Sequoia RS?

Accepted Answer

UL 2218 Class 4 is the highest impact rating an asphalt shingle can earn — the shingle survives a 2-inch steel ball dropped from 20 feet without splitting. Many home insurance carriers offer a 5–25% discount on premium for Class 4 roofs because they're more hail-resistant. Grand Sequoia® RS is the only GAF designer cool-roof that's also Class 4 rated. Worth asking your insurance agent about the discount before you sign.

Question 5

How many colors do TMC's GAF cool-roof shingles come in?

Accepted Answer

Timberline HDZ® RS: 7 colors — Charcoal (the darkest highly-reflective shingle on the market), Hickory, Aged Chestnut, Coastal Slate, Sagewood, Sandalwood, Stone Gray. Grand Sequoia® RS: 5 colors — Charcoal, Forest Brown, Ocean Gray, Sagewood, Sandalwood. All 12 colors are CRRC-listed and meet California Title 24. Use GAF's Virtual Remodeler to try every color on a photo of your home, or click any swatch on the cards above to preview the spec sheet.

Question 6

What is GAF Master Elite, and why does it matter for my roof?

Accepted Answer

GAF Master Elite is the highest residential roofing certification in the U.S., held by the top 3% of contractors (fewer than 750 nationally). It's the only certification that unlocks the GAF Golden Pledge warranty: 25 years on TMC's workmanship plus up to 50 years on materials — the strongest residential roof warranty in North America. TMC is Master Elite, so every Reflector Series install qualifies for that warranty.

Question 7

Can I see what an RS shingle will look like on my house before I commit?

Accepted Answer

Two ways. Click any color swatch on the cards above and the hero image swaps to a real home with that color installed. For your specific home, use GAF's Virtual Remodeler — upload a photo of your house and try every Reflector Series color in real time, free, no signup. Send us the resulting link or screenshot with your estimate request and we'll quote the exact install.

GAF Cool Roof Shingles
Title 24 compliant · Reflector Series only

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The two GAF Reflector Series shingles TMC installs

Timberline HDZ® RS

Grand Sequoia® RS

GAF shingle questions, answered

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GAF Cool Roof ShinglesTitle 24 compliant · Reflector Series only