[article]
| Titre : |
Architectural coatings as a tool for combatting urban heat islands |
| Type de document : |
texte imprimé |
| Auteurs : |
Audrey McGarrell, Auteur ; Stacey Weister, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 52-59 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Rayonnement solaire
Réflectivité thermique
Revêtements en bâtiment:Peinture en bâtiment
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Heat is the leading weather-related cause of human mortality, surpassing hurricanes, tornadoes, lightning, and blizzards. The impacts of heat are intensified by the urban heat island (UHI) effect, which occurs when cities are hotter than surrounding rural and suburban areas. Architectural coatings can play an important role in UHI mitigation by reflecting solar radiation rather than absorbing it. By efficiently reflecting sunlight and emitting absorbed heat, cool exterior walls maintain a lower surface temperature, improve occupant comfort and safety, and reduce the demand for air conditioning, which decreases the building's contribution to peak demand, greenhouse gas emissions, and the UHI eff ect. This article describes methods for evaluating the "coolness" of architectural coatings, including laboratory testing and natural weathering to determine the durability of the radiative properties. It also summarizes current technologies for increasing coating solar reflectance ; discusses the latest research on the impacts of cool exterior walls ; describes U.S. building codes, standards, and voluntary programs that require or promote their use ; and explores strategies for discussing cool coatings with customers. |
| Note de contenu : |
- The urban heat island effect
- Cool coatings as a tool to mitigate UHI
- Evaluating the coolness of architectural coatings
- Current technologies
- Codes, standards, and voluntary programs that promote cool exterior walls
- Cool coatings in sustainability efforts and marketing
- Fig. 1 : Explanation of the urban heat island effect
- Fig. 2 : Cool exterior wall diagram
- Fig. 3 : Difference between the surface temperature of a dark exterior wall (160.7 °F) and a light exterior wall (114.4 °F) on July 19, 2022, at 7 p.m. in Portland, OR
- Fig. 4 : Solar reflectance values of conventional and infrared reflective (spectrally selective) pigments |
| En ligne : |
https://drive.google.com/file/d/1ow5HPnEOtP4D_bEGdyUWEWv81_T5Blyj/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40650 |
in COATINGS TECH > Vol. 21, N° 2 (03-04/2024) . - p. 52-59
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