{"id":25549,"date":"2025-06-27T12:40:50","date_gmt":"2025-06-27T17:40:50","guid":{"rendered":"https:\/\/blogs.law.columbia.edu\/climatechange\/?p=25549"},"modified":"2025-06-27T12:43:01","modified_gmt":"2025-06-27T17:43:01","slug":"atlantas-new-ordinance-raises-the-bar-on-cool-roofs","status":"publish","type":"post","link":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/","title":{"rendered":"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs"},"content":{"rendered":"
<\/div>
\"The<\/a>
Photo by Steve Matthews<\/a> on Unsplash<\/a><\/figcaption><\/figure>\n

Earlier this month, on June 2, 2025, Atlanta\u2019s City Council unanimously passed a state-of-the-art ordinance<\/a> to require cool roofs throughout the whole city, immediately propelling Atlanta to the forefront of local climate adaptation measures. The new requirements will help make Atlanta cooler, improve its air quality, and lower residents\u2019 energy bills. They also provide a model for other cities looking to advance climate adaptation legislation.<\/p>\n

Cool roof requirements typically set standards for how much incoming solar radiation roofing materials must reflect\u2014defined in terms of solar reflectance, thermal emissivity, or a calculated combination of the two expressed as solar reflective index (SRI). These are usually expressed as minimum figures after a roofing product has been in place for three years. For each of these metrics, higher standards mean less heat absorbed and retained by the roof, which corresponds to lower temperatures in the building below and the surrounding area. Cool roof requirements are also, but less commonly expressed as initial reflectance figures measured at the time roofing materials are installed. Those capture the same types of reflectivity measures up front but can allow for materials that become less reflective after years of weathering in place causes chemical changes in the asphalt of shingles and after reflective granules begin eroding from their surface.<\/p>\n

Prior to adopting its new requirements, Atlanta required commercial buildings citywide to have either a 3-year aged solar reflectance of 0.55 and a 3-year aged thermal emittance of 0.75 or a 3-year aged SRI of 64. In three special purpose zoning districts, both commercial and residential buildings with low slope roofs needed an initial SRI of 78.<\/p>\n

When the city\u2019s new ordinance goes into effect it will simplify and increase the reflectance requirements that buildings must meet. Regardless of building type or zoning district, low slope roofs (usually the flat roofs typical of commercial and multi-family residential buildings) will have to achieve a solar reflectance of 0.70 and an SRI of at least 85. High slope roofs (the steeper kinds typically found on single-family homes) will need a solar reflectance of at least 0.21 and an SRI of at least 20. All these figures need to be met with products rated on their 3-year aged performance. The ordinance also creates a simplified permitting procedure to allow the city to enforce these new provisions.<\/p>\n

While Atlanta is not the first city to require cool roofs, its new standards are ahead of those found in some of the most climate adaptation-minded jurisdictions around the country. Los Angeles\u2019s SRI requirements<\/a>, for example, date back to 2015 and come in at 78 for low slope roofs and 20 for steep slope roofs. New York City\u2019s SRI numbers<\/a> were updated in 2019: 82 for low slope roofs and 39 for steep slope\u2014but in New York\u2019s case the standards dictate materials\u2019 initial reflectance measurements, as opposed to the 3-year aged standards soon to be in place in Atlanta.<\/p>\n

Atlanta\u2019s standards are made possible by state legislation that gives Georgia cities the option to address unique local needs through locally-applicable building code amendments. The statewide building code sets a baseline, but cities can adopt more stringent standards that are justified by \u201clocal climatic, geologic, topographic, or public safety factors<\/a>.\u201d The state legislation does not provide any guidance on what kinds of evidence should satisfy that standard, and there is no case law clarifying how to apply that standard. But other measures in Atlanta and from around the state provide examples of the kinds of local amendments being adopted under this section. Those include measures to address noise pollution<\/a> in Atlanta, to increase water efficiency<\/a> in Duluth, and requiring insect screening<\/a> in Savannah.<\/p>\n

By any reasonable interpretation, the local conditions in Atlanta\u2019s case overwhelmingly supported the city\u2019s ordinance. State-of-the-art modelling work led by the Smart Surfaces Coalition<\/a>\u00a0found that, over the next 35 years, Atlanta\u2019s ordinance should yield a peak citywide temperature reduction of\u00a02.4\u00b0F and, in the hottest neighborhoods, reductions of up to 6.3\u00b0F<\/a>. Researchers at Georgia Tech have pointed out<\/a> that, at present, some neighborhoods in the city can be 15\u00b0F hotter than the city\u2019s forested areas on a summer afternoon.<\/p>\n

The kinds of temperature reductions Atlanta can expect are typical of similarly situated cities in other states, but the extent to which those cities can follow Atlanta\u2019s approach to advancing cool roofs depends on state laws regarding building codes. Local control of building codes varies significantly. A handful of states leave building codes largely up to local governments to adopt and enforce\u2014including, for example Arizona<\/a>, Mississippi<\/a>, and Missouri<\/a>. Others\u2014like Louisiana<\/a>, Michigan<\/a>, and Oregon<\/a>\u2014broadly preempt local roles in setting building codes.<\/p>\n

But Georgia is not alone in giving local governments some ability to make local changes to their building code while still maintaining a significant role for the state itself. Cities in states with comparable building code laws may be able to emulate aspects of Atlanta\u2019s approach. In Florida<\/a>, for example, a local government can adopt an amendment to the state building code, if it shows \u201cby evidence or data\u201d that its jurisdiction \u201cexhibits a local need to strengthen the Florida Building Code beyond the needs or regional variation addressed by the Florida Building Code\u201d\u2014and provided exacting procedural requirements are met. There is no case law construing the standard, though courts have rejected purported local amendments done without compliance with the specified procedures. See<\/em> Greenberg v. Martin Cnty.<\/em>, 2014 WL 12970296, at *4 (Fla. Cir. Ct. Oct. 15, 2014). A local government in South Carolina<\/a> may adopt a local amendment justified by \u201clocal physical or climatological conditions,\u201d provided it meets procedural requirements and defines the boundary of those conditions with reference to major highways, waterbodies, or ridgeline; not political boundaries. Texas<\/a> cities are theoretically free to make amendments either more stringent or more permissive than the state\u2019s code<\/a> without specific reference to local climate conditions, but will also need to navigate other preemption concerns<\/a> from outside building code statutes.<\/p>\n

In sum, the steps Atlanta is taking are urgently needed to address the major heat concerns occurring in the city, and the path the city is taking is bold enough to see meaningful change. Further, the city has shown how local building code measures can be an avenue through which other cities might address extreme heat. The kinds of evidence a city will need to garner vary as legal standards are different in each state. But in every case, high-quality, localized data on baseline conditions and the projected changes a code can effect will be an asset.<\/p>\n","protected":false},"excerpt":{"rendered":"

Earlier this month, on June 2, 2025, Atlanta\u2019s City Council unanimously passed a state-of-the-art ordinance to require cool roofs throughout the whole city, immediately propelling Atlanta to the forefront of local climate adaptation measures. The new requirements will help make Atlanta cooler, improve its air quality, and lower residents\u2019 energy bills. They also provide a […]<\/p>\n","protected":false},"author":2659,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[5672,68402],"tags":[9429,65711,75,69082,9418,5665],"class_list":{"0":"post-25549","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-adaptation","7":"category-cities","8":"tag-adaptation","9":"tag-cities-climate-law-initiative","10":"tag-climate-change","11":"tag-local-governments","12":"tag-local-law","13":"tag-municipal","14":"czr-hentry"},"yoast_head":"\nAtlanta\u2019s New Ordinance Raises the Bar on Cool Roofs - Climate Law Blog<\/title>\n<meta name=\"description\" content=\"Atlanta is tackling extreme heat in bold ways that are urgently needed to address major heat concerns occurring in the city.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs - Climate Law Blog\" \/>\n<meta property=\"og:description\" content=\"Atlanta is tackling extreme heat in bold ways that are urgently needed to address major heat concerns occurring in the city.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/\" \/>\n<meta property=\"og:site_name\" content=\"Climate Law Blog\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-27T17:40:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-27T17:43:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2025\/06\/steve-matthews-f8N32ZwzrKQ-unsplash.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2400\" \/>\n\t<meta property=\"og:image:height\" content=\"1350\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Daniel J. Metzger\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@sabincenter\" \/>\n<meta name=\"twitter:site\" content=\"@sabincenter\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Daniel J. Metzger\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/\"},\"author\":{\"name\":\"Daniel J. Metzger\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#\\\/schema\\\/person\\\/a326f867866c9cc1257435c0f749355b\"},\"headline\":\"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs\",\"datePublished\":\"2025-06-27T17:40:50+00:00\",\"dateModified\":\"2025-06-27T17:43:01+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/\"},\"wordCount\":1101,\"publisher\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/files\\\/2025\\\/06\\\/steve-matthews-f8N32ZwzrKQ-unsplash-300x169.jpg\",\"keywords\":[\"Adaptation\",\"Cities Climate Law Initiative\",\"Climate Change\",\"Local Governments\",\"Local Law\",\"Municipal Activity\"],\"articleSection\":[\"Adaptation & Resilience\",\"Cities & Local Governments\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/\",\"url\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/\",\"name\":\"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs - Climate Law Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/files\\\/2025\\\/06\\\/steve-matthews-f8N32ZwzrKQ-unsplash-300x169.jpg\",\"datePublished\":\"2025-06-27T17:40:50+00:00\",\"dateModified\":\"2025-06-27T17:43:01+00:00\",\"description\":\"Atlanta is tackling extreme heat in bold ways that are urgently needed to address major heat concerns occurring in the city.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#primaryimage\",\"url\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/files\\\/2025\\\/06\\\/steve-matthews-f8N32ZwzrKQ-unsplash.jpg\",\"contentUrl\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/files\\\/2025\\\/06\\\/steve-matthews-f8N32ZwzrKQ-unsplash.jpg\",\"width\":2400,\"height\":1350,\"caption\":\"Photo by Steve Matthews on Unsplash\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/2025\\\/06\\\/27\\\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#website\",\"url\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/\",\"name\":\"Climate Law Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#organization\",\"name\":\"Sabin Center for Climate Change Law\",\"url\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/files\\\/2023\\\/02\\\/21-SabinBlog_Banner-1.png\",\"contentUrl\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/files\\\/2023\\\/02\\\/21-SabinBlog_Banner-1.png\",\"width\":2752,\"height\":260,\"caption\":\"Sabin Center for Climate Change Law\"},\"image\":{\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/x.com\\\/sabincenter\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/#\\\/schema\\\/person\\\/a326f867866c9cc1257435c0f749355b\",\"name\":\"Daniel J. Metzger\",\"description\":\"Dan Metzger is a Senior Fellow with the Cities Climate Law Initiative at the Sabin Center for Climate Change Law at Columbia Law School.\",\"url\":\"https:\\\/\\\/blogs.law.columbia.edu\\\/climatechange\\\/author\\\/danmetzger\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs - Climate Law Blog","description":"Atlanta is tackling extreme heat in bold ways that are urgently needed to address major heat concerns occurring in the city.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/","og_locale":"en_US","og_type":"article","og_title":"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs - Climate Law Blog","og_description":"Atlanta is tackling extreme heat in bold ways that are urgently needed to address major heat concerns occurring in the city.","og_url":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/","og_site_name":"Climate Law Blog","article_published_time":"2025-06-27T17:40:50+00:00","article_modified_time":"2025-06-27T17:43:01+00:00","og_image":[{"width":2400,"height":1350,"url":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2025\/06\/steve-matthews-f8N32ZwzrKQ-unsplash.jpg","type":"image\/jpeg"}],"author":"Daniel J. Metzger","twitter_card":"summary_large_image","twitter_creator":"@sabincenter","twitter_site":"@sabincenter","twitter_misc":{"Written by":"Daniel J. Metzger","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#article","isPartOf":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/"},"author":{"name":"Daniel J. Metzger","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#\/schema\/person\/a326f867866c9cc1257435c0f749355b"},"headline":"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs","datePublished":"2025-06-27T17:40:50+00:00","dateModified":"2025-06-27T17:43:01+00:00","mainEntityOfPage":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/"},"wordCount":1101,"publisher":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#organization"},"image":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2025\/06\/steve-matthews-f8N32ZwzrKQ-unsplash-300x169.jpg","keywords":["Adaptation","Cities Climate Law Initiative","Climate Change","Local Governments","Local Law","Municipal Activity"],"articleSection":["Adaptation & Resilience","Cities & Local Governments"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/","url":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/","name":"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs - Climate Law Blog","isPartOf":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#primaryimage"},"image":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2025\/06\/steve-matthews-f8N32ZwzrKQ-unsplash-300x169.jpg","datePublished":"2025-06-27T17:40:50+00:00","dateModified":"2025-06-27T17:43:01+00:00","description":"Atlanta is tackling extreme heat in bold ways that are urgently needed to address major heat concerns occurring in the city.","breadcrumb":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#primaryimage","url":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2025\/06\/steve-matthews-f8N32ZwzrKQ-unsplash.jpg","contentUrl":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2025\/06\/steve-matthews-f8N32ZwzrKQ-unsplash.jpg","width":2400,"height":1350,"caption":"Photo by Steve Matthews on Unsplash"},{"@type":"BreadcrumbList","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/2025\/06\/27\/atlantas-new-ordinance-raises-the-bar-on-cool-roofs\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/blogs.law.columbia.edu\/climatechange\/"},{"@type":"ListItem","position":2,"name":"Atlanta\u2019s New Ordinance Raises the Bar on Cool Roofs"}]},{"@type":"WebSite","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#website","url":"https:\/\/blogs.law.columbia.edu\/climatechange\/","name":"Climate Law Blog","description":"","publisher":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.law.columbia.edu\/climatechange\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#organization","name":"Sabin Center for Climate Change Law","url":"https:\/\/blogs.law.columbia.edu\/climatechange\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#\/schema\/logo\/image\/","url":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2023\/02\/21-SabinBlog_Banner-1.png","contentUrl":"https:\/\/blogs.law.columbia.edu\/climatechange\/files\/2023\/02\/21-SabinBlog_Banner-1.png","width":2752,"height":260,"caption":"Sabin Center for Climate Change Law"},"image":{"@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/sabincenter"]},{"@type":"Person","@id":"https:\/\/blogs.law.columbia.edu\/climatechange\/#\/schema\/person\/a326f867866c9cc1257435c0f749355b","name":"Daniel J. Metzger","description":"Dan Metzger is a Senior Fellow with the Cities Climate Law Initiative at the Sabin Center for Climate Change Law at Columbia Law School.","url":"https:\/\/blogs.law.columbia.edu\/climatechange\/author\/danmetzger\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/posts\/25549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/users\/2659"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/comments?post=25549"}],"version-history":[{"count":5,"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/posts\/25549\/revisions"}],"predecessor-version":[{"id":25594,"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/posts\/25549\/revisions\/25594"}],"wp:attachment":[{"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/media?parent=25549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/categories?post=25549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.law.columbia.edu\/climatechange\/wp-json\/wp\/v2\/tags?post=25549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}