--- title: How Cool Roofs Address Climate Change description: Cool roofs impact not only your home but also your community. In this article we'll give you an entirely new appreciation for cool roofs! image: https://blog.citadelrs.com/hubfs/iStock-835187948-reduced.jpg --- CALL OR [CLICK](https://info.citadelrs.com/get-a-quote) TODAY FOR A **FREE** SOLAR CONSULTATION: [(833) 410-6579](tel:8334106579) - - - - - - Call Now:[(833) 410-6579](tel:%20(833)%20410-6579) [![Citadel Solar](https://blog.citadelrs.com/hs-fs/hubfs/Citadel-Color-Logo.png?noresize&width=120&name=Citadel-Color-Logo.png)](https://www.citadelrs.com/) - - - - - [Homeowners](https://www.citadelrs.com/residential/) - [Solar](https://www.citadelrs.com/residential/solar/) - [Solar Energy Storage](https://www.citadelrs.com/residential/solar-battery-energy-storage/) - [Solar Maintainance](https://www.citadelrs.com/residential/solar-maintenance/) - [Roofing](https://www.citadelrs.com/residential/roofing/) - [Smart Panels](https://www.citadelrs.com/residential/residential-smart-panels/) - [Customer Stories](https://www.citadelrs.com/residential/customer-stories/) - 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[Financing](https://www.citadelrs.com/learn/financing/) - [News](https://blog.citadelrs.com/news) - [Blog](https://blog.citadelrs.com) - [Contact Us](https://www.citadelrs.com/contact-us/) [![Get a Quote](https://no-cache.hubspot.com/cta/default/5109481/33403781-e6c8-488f-8982-c563afdce0a3.png)](https://www.citadelrs.com/get-a-quote/) # OUR RECENT BLOGS # How Cool Roofs Address Climate Change ## Published Nov. 24, 2020 If you’re having a new roof installed on your California home or business, chances are it will be a “cool roof”—a roof designed to reflect more sunlight and absorb less heat compared to a standard roof. California’s Energy Code (Title 24) requires virtually all new residential and commercial roofs in all sixteen of the state’s climate zones to be “cool”. As with many environmental initiatives, cool roofs impact not only your home but also your community and the entire planet. It’s all connected, as we explain below. **Cool Roof Basics** Your roof is an ideal barrier against rain, wind and snow, keeping them out of your house. But it’s not a foolproof barrier against heat. Your roof absorbs heat from the sun and transfers much of it into your home, leaving you reaching for the air-conditioning many days of the year. According to the [U.S. Department of Energy (DOE),](https://www.energy.gov/energysaver/design/energy-efficient-home-design/cool-roofs) a standard roof can reach 150 degrees or more in the summer, whereas a cool roof would top out at around 100 degrees. California, of course, is only getting hotter, with more heat waves, droughts and wildfires—perhaps better classified as climate fires—predicted for the future. The technology behind a cool roof is straightforward and proven. Either the roofing material is fabricated to have greater reflectivity, or it is coated or painted with a special material to increase its reflectivity.  The potential for cool roofs to help reduce global temperatures is impressive, as we explain below. **Cool Roof Benefits in Your Home** When your roof reflects more sunlight and absorbs less heat, less heat is transferred into your home. That means your home is cooler and more comfortable, so you use less air-conditioning. And that translates to less use of electricity including utility-produced power, much of which is fueled by fossil fuels like gas and oil. Those fossil fuels are widely recognized as climate change culprits. ![For Solar Industry 2-reduced](https://blog.citadelrs.com/hs-fs/hubfs/For%20Solar%20Industry%202-reduced.jpg?width=330&name=For%20Solar%20Industry%202-reduced.jpg) The ability of cool roofs to reduce the emissions of greenhouse gases produced by the burning of fossil fuels is particularly pronounced in California compared to many other states because of our consistently warm climate. **Bonus Benefits for Homeowners** In addition to the environmental advantages of your cool roof, California homeowners and business owners benefit from the following: 1. **Savings on Your Electric Bills:** According to [CoolCalifornia.org](https://coolcalifornia.arb.ca.gov/), your exact savings depend on factors including the local climate, roofing materials and the type of insulation used in your home. As an example, though, the organization says installing a cool roof saves Sacramento homeowners about [69 percent](https://coolcalifornia.arb.ca.gov/roof-energy-benefits) on their annual cooling bills. 2. **More Money for Other Uses:** Spending less on electricity frees up cash for other important uses. 3. **Your Roof Lasts Longer:** A cool roof made of a soft material like asphalt shingles or single-ply membrane may last longer than a similar roof in a standard material, because the roof won’t expand and shrink as much due to temperatures changes. **Cool Roof Benefits in Your Community** The impact of cool roofs at the household level translates into these community-wide environmental benefits: 1. **Lower City Air Temperature:** Compared to suburban and rural areas, cities retain more heat in what’s referred to as the [“urban heat island effect”](https://www.epa.gov/heatislands/learn-about-heat-islands). Cool roofs actually reduce the average surface temperature in a city and cool the air outside, not just the air within the buildings. So the cumulative effect of a lot of cool roofs is very cool indeed. 2. **Improved Air Quality:** We’ve already explained how less use of air conditioners means less use of fossil fuels and reduced power plant emissions such as the greenhouse gas carbon dioxide (CO2). That, in turn, has a direct impact on the quality of the air you breathe. And cool roofs offer a bonus benefit for your neighborhood:        3**.  Increased Grid Reliability:** Less demand for air-conditioning lowers the overall demand on the electricity grid, which can help prevent             power outages in your area. **Global Cool Roof Benefits**  Cool roofs exemplify the wisdom of “think globally, act locally”. The use of cool roofs on individual homes has a collective, planet-wide impact: 1. **Lower Global Temperatures:** Cool roofs around the world contribute to better reflectivity of sunlight (called “[albedo](https://www.worldatlas.com/what-is-albedo.html)”) [by the entire Earth](https://coolcalifornia.arb.ca.gov/roof-environment), which means a cooler planet. And these days, a cooler planet is a happier, healthier planet. 2. **Improved Global Air Quality**: High temperatures contribute to smog formation, which of course makes for unsafe air quality, especially for people with asthma and related conditions. So a cooler planet can slow the formation of smog. **Cool Roof Options** Virtually all roof materials come in cool versions, including those installed by Citadel Roofing & Solar for both residential and commercial installations: tile, composition shingles, metal, slate, TPO and PVC. Citadel’s roofing materials are manufactured by CertainTeed, Malarkey, Owens Corning, GAF, Eagle, Boral, Carlisle and Firestone. When cool roofing products were first introduced, white was the only option. Today, an immense variety of colors are available for shingle, metal and tile cool roofs, and new options are introduced practically every week. Just look at the number of cool roof colors available from [Boral](https://www.boralroof.com/wp-content/uploads/2019/01/SoCal-CRRC-0815.pdf) and [Eagle](https://eagleroofing.com/products/browse-tile/). The cost of a cool roof is roughly the same as a standard roof because the addition of the reflective material represents only a small piece of the manufacturing cost. That’s true whether you’re building a new home or re-roofing your existing home. **Cool Roof Disadvantages** The downsides to cool roofs are negligible. The color of your roof may not have the same pop or luster as a standard roof, but in most cases, today’s colors are extremely attractive. And a cool roof may slightly increase a home’s heating costs in the winter because the roof is absorbing less heat. But that’s rarely an issue in California. Even in colder climates, [CoolCalifornia.org](https://coolcalifornia.arb.ca.gov/roof-cost-savings) says the additional heating cost is far outweighed by the cooling savings gained in the summer.  **More Resources** Much of the information in this article was gleaned from the U.S. Department of Energy, CoolCalifornia.org and the Cool Roof Rating Council. Here are links to their excellent cool roof resources, if you’d like to learn more about cool roof technology and its impact on our environment: - [U.S. Department of Energy](https://www.energy.gov/energysaver/design/energy-efficient-home-design/cool-roofs) - [Cool Roof Rating Council](https://coolroofs.org/resources/home-building-owners) - [CoolCalifornia.org](https://coolcalifornia.arb.ca.gov/cool-roofs-codes-and-standards) In addition, these related articles from Citadel’s blog may be of interest: - [Should I Replace My Roof Before Going Solar?](https://blog.citadelrs.com/should-i-replace-my-roof-before-going-solar) - [How Roof and Solar Warranties Impact Each Other](https://blog.citadelrs.com/how-roof-and-solar-warranties-impact-each-other) - [How to Tell if Your Roof Works for Solar](https://blog.citadelrs.com/how-to-tell-if-your-roof-works-for-solar)   [![New call-to-action](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/5109481/ee49bec9-3295-4d4e-a4cc-e61ba08a7c48.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/5109481/ee49bec9-3295-4d4e-a4cc-e61ba08a7c48) ## Solar myths - **Solar is expensive.** False. 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