On a hot Marietta afternoon, a sun-baked roof can add heat to the attic and increase the work your air conditioner has to do. Solar-reflective shingles can help limit that heat gain, but the savings depend on the shingle color, roof exposure, attic insulation, ventilation, and your home’s cooling system.

If you’re considering a roof replacement, the key is to compare specific reflective shingle colors and their published ratings, not just choose a product labeled “cool.” Here’s what to look for, how leading options compare, and when an energy-efficient upgrade may be worth the added cost.

How reflective shingles work

Most asphalt shingles contain mineral granules. In a reflective shingle, specially selected granules and pigments reflect more of the sun’s energy away from the roof. Less absorbed heat can mean less heat transferring through the roof deck into the attic.

Two measurements help describe this performance:

• Solar reflectance is the share of sunlight a surface reflects. Higher generally means more sunlight is reflected.
• Thermal emittance describes how effectively a surface releases absorbed heat.
• Solar Reflectance Index (SRI) combines these properties into a calculated score. It is useful for comparison, but it is not itself a direct measurement of indoor comfort or utility-bill savings.

The Cool Roof Rating Council (CRRC) rates roof products and lists their solar reflectance and thermal emittance. Check the exact shingle color and current listing; results can differ within the same product family. Where available, compare aged as well as initial ratings.

One important clarification: the EPA’s roofing-product ENERGY STAR program ended in June 2022. In 2026, don’t rely on a claim that an asphalt shingle is newly ENERGY STAR certified. Ask for its CRRC listing instead.

Reflective shingle options to compare

These are product lines worth asking about when comparing energy-efficient shingles for Marietta, GA. Availability, colors, ratings, and warranty terms can vary, so confirm the details for your project.

Owens Corning TruDefinition Duration COOL

Duration COOL uses solar-reflecting granules and has CRRC-rated colors. Its published product brochure lists SRI values ranging from 16 to 29, depending on color. For example, Shasta White is listed at 29, while Oyster Shell and Amber are listed at 24; darker Night Sky is listed at 16. That range shows why the color name, or the product line alone, doesn’t tell the whole story.

The line also features Owens Corning’s SureNail technology and a limited-lifetime warranty, subject to the manufacturer’s terms and requirements. See the Duration COOL product information and ask your contractor to verify which colors are currently available locally.

CertainTeed Landmark Solaris

Landmark Solaris combines solar-reflective technology with architectural shingle styling. CertainTeed states that its colors are CRRC-rated and describes selected “High Index” colors as having higher SRI. The product also has a limited-lifetime warranty and UL 2218 Class 3 impact resistance, subject to product and warranty terms.

Review the Landmark Solaris product details and compare the rating for the particular color you’re considering.

GAF Timberline CS Cool Series

GAF Timberline CS Cool Series shingles are another option to discuss with a qualified installer. Ask for the CRRC figures for the specific color, including aged performance where available. Don’t assume that a rating or performance claim for one color applies to every shingle in the series. Confirm the product’s full warranty and installation requirements as well.

IKO Cambridge Cool Colors Plus

IKO says Cambridge Cool Colors Plus uses embedded infrared-reflective pigments and offers SRI ratings of 20 or greater. The manufacturer also notes that the product is available only in certain U.S. regions. Check the IKO product page to review the collection, then confirm local availability and the exact color rating before comparing bids.

What might you actually save?

Reflective shingles can reduce roof-surface heat and may reduce the cooling load in some homes. But there’s no honest one-size-fits-all dollar figure for Marietta homeowners. A shingle’s rating does not predict your exact bill, and a reflective roof won’t correct poor insulation, leaky ductwork, or an undersized or inefficient air conditioner.

For a simple illustration, not a savings promise, if your summer cooling costs $200 per month, a 5% reduction in cooling energy would equal $10 for that month. Whether a roof can produce that result depends on the home and the entire attic system. The U.S. Department of Energy’s overview of cool asphalt shingles describes current asphalt options as a modest-performance technology, not a substitute for a whole-home efficiency plan.

The upgrade often makes the most sense as part of a roof replacement you already need, especially if your cooling bills are high or the roof gets strong afternoon sun. Energy savings alone may not repay a price premium quickly. Treat improved comfort and potentially lower cooling demand as added benefits, not guaranteed payback.

Which homes in Cobb and Paulding Counties may benefit most?

A reflective option may deserve a closer look if your home has:

• Large south- or west-facing roof planes exposed to afternoon sun.
• A warm attic or rooms below the roof that are difficult to keep comfortable.
• High summer air-conditioning use.
• A roof replacement already planned, making it practical to compare standard and reflective options side by side.

Georgia’s humid summers, intense sun, and storm season all put demands on a roof. Reflectivity addresses heat from sunlight; it does not replace sound installation, storm-ready detailing, or good roof drainage.

Color is part of the decision. Lighter colors tend to reflect more sunlight, but specially formulated granules can help some darker shades perform better than conventional dark shingles. If you prefer a deeper color, compare its actual CRRC values rather than ruling it out, or assuming it performs like a pale shingle. Review samples outdoors, since screens and printed charts can distort color.

Pair shingles with insulation and ventilation

A reflective shingle is only one part of the roof system. Proper attic insulation helps slow heat transfer into living spaces, while balanced ventilation helps manage heat and moisture in the attic. In Georgia’s humid climate, a poorly designed ventilation setup can create moisture problems or undermine roof performance.

During an inspection, a contractor can look at the roof, attic access, ventilation, and visible insulation conditions. If you’re planning a roof replacement, ask how the proposed shingle choice fits with the rest of the roof system, not just its color or marketing claims.

Compare the full value, not just the shingle

Reflective colors may cost more than standard architectural shingles, but the premium varies by product, color, supplier, and project. Get itemized estimates that identify the exact shingle and color, CRRC rating, installation components, ventilation work, and warranty terms. Compare the finished roofing system and installation, not just the per-bundle price.

Some options bring additional durability features, too. For example, CertainTeed lists Class 3 impact resistance for Landmark Solaris. Warranty coverage, wind terms, and required accessories differ by manufacturer and system, so read the actual warranty rather than relying on a general “lifetime” label.

At New Image Roofs, we’re locally owned and understand how Georgia weather affects homes across Marietta, Dallas, Acworth, Kennesaw, and surrounding Cobb and Paulding Counties. As an Owens Corning Preferred Contractor, we work with premium suppliers including Owens Corning, CertainTeed, GAF, and IKO. Our reputation includes more than 600 five-star reviews, and our approach starts with an honest inspection, not pressure to buy an upgrade.

A reflective shingle is not always the best value. If the roof is shaded, attic insulation is the larger issue, or the price premium outweighs the likely benefit, a standard premium architectural shingle may be the more sensible choice.

Frequently asked questions

Are energy-efficient shingles worth it in Marietta?

They may be worth comparing if your roof receives strong sun, your summer cooling costs are high, and you’re replacing the roof anyway. Savings vary, and the energy-bill payback is not guaranteed.

Do darker reflective shingles work?

They can. Reflective pigments and granules may improve performance compared with conventional dark shingles. Compare the CRRC rating for the exact color rather than judging by appearance alone.

Should I choose reflective shingles before fixing attic issues?

Not necessarily. Insulation, air sealing, and balanced ventilation affect comfort and energy use. Have the attic and roof system assessed so you can prioritize the improvements that make sense for your home.

What should I ask roofing contractors in Marietta, GA?

Ask for the shingle manufacturer, series, exact color, CRRC rating, itemized cost, and applicable warranty documents. A reliable contractor should explain the trade-offs clearly and help you compare options without pushing an upgrade you don’t need.

Get an honest roof assessment

Choosing a shingle should bring confidence, not guesswork. New Image Roofs can review your roof, discuss reflective options and attic considerations, and explain when the added cost may, or may not, make sense. Call 678-444-4901 to request a free, honest inspection and straightforward guidance.