{"id":6908,"date":"2023-10-10T09:07:57","date_gmt":"2023-10-10T09:07:57","guid":{"rendered":"https:\/\/arkitechglobal.com\/?p=6908"},"modified":"2023-10-10T09:22:50","modified_gmt":"2023-10-10T09:22:50","slug":"thermal-performance-of-cold-formed-steel-buildings","status":"publish","type":"post","link":"https:\/\/arkitechglobal.com\/fr\/performances-thermiques-des-batiments-en-acier-forme-a-froid\/","title":{"rendered":"Performance thermique des b\u00e2timents en acier form\u00e9s \u00e0 froid"},"content":{"rendered":"
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Politiques \u00e9nerg\u00e9tiques<\/span><\/h2>

Le monde change \u00e9norm\u00e9ment \u00e0 cause du CO2\u00a0<\/sub>Les \u00e9missions de CO2 sont faibles, mais elles ne peuvent pas suivre le rythme naturellement. Par cons\u00e9quent, \u00e9conomiser de l\u2019\u00e9nergie est plus important que jamais aujourd\u2019hui. Le secteur de la construction peut contribuer \u00e0 ces \u00e9conomies en isolant thermiquement les b\u00e2timents. Le chauffage et la climatisation des b\u00e2timents repr\u00e9sentent 48 % de la consommation \u00e9nerg\u00e9tique finale en Europe. Le transfert de chaleur peut se produire sur toutes les surfaces du b\u00e2timent, mais les fen\u00eatres et autres ouvertures sont \u00e0 l\u2019origine de la majeure partie des pertes d\u2019\u00e9nergie. Outre les portes et les fen\u00eatres, les constructeurs peuvent se concentrer sur l\u2019isolation des murs, des toits et des sols pour r\u00e9duire la perte totale.<\/p>

Du point de vue europ\u00e9en, l\u2019objectif est de r\u00e9duire les \u00e9missions de 60 % d\u2019ici 2030. Selon l\u2019AEE (Agence europ\u00e9enne de l\u2019\u00e9nergie), les surfaces disponibles pour les centrales \u00e9oliennes et solaires seront limit\u00e9es \u00e0 long terme. Il ne sera pas possible de r\u00e9duire les \u00e9missions en rempla\u00e7ant simplement la source d\u2019\u00e9nergie par de l\u2019\u00e9nergie verte. Cela signifie que les combustibles fossiles resteront longtemps sur le march\u00e9 et pourraient donner lieu \u00e0 des r\u00e9glementations suppl\u00e9mentaires. Il est donc essentiel d\u2019\u00e9conomiser de l\u2019\u00e9nergie, m\u00eame dans les b\u00e2timents.<\/p>

Le calcul de la performance \u00e9nerg\u00e9tique d'un b\u00e2timent a deux objectifs principaux. Le premier est le transfert de chaleur aux surfaces. Le deuxi\u00e8me est l'\u00e9tanch\u00e9it\u00e9 \u00e0 l'air. Ces deux param\u00e8tres peuvent \u00eatre calcul\u00e9s ou test\u00e9s avec des normes internationales telles que EN ISO 6946, EN 13829:2001, ISO 9972:2006, AISI S250, ASTM E779-10, ATTMA TS1, ICC IECC-2018, etc.<\/p>

D\u00e9tail de l'\u00e9chantillon<\/span><\/h2>

Les assemblages en acier form\u00e9s \u00e0 froid pr\u00e9sentent des cavit\u00e9s entre les profil\u00e9s, et ces espaces peuvent \u00eatre remplis de mat\u00e9riaux isolants. Des mat\u00e9riaux ou couches de rev\u00eatement suppl\u00e9mentaires peuvent emp\u00eacher les ponts thermiques. Le rev\u00eatement int\u00e9rieur-ext\u00e9rieur et le mat\u00e9riau de remplissage \u00e0 l'int\u00e9rieur de la cavit\u00e9 peuvent \u00eatre utilis\u00e9s comme d\u00e9tail standard dans le secteur de la construction \u00e0 ossature l\u00e9g\u00e8re. Afin de maintenir l'isolation thermique requise, le d\u00e9tail de la figure 1 peut \u00eatre utilis\u00e9. L'\u00e9valuation de la valeur R, qui d\u00e9crit la r\u00e9sistance thermique, peut \u00eatre effectu\u00e9e en suivant les directives des codes.<\/p>

\"General<\/p>

Figure 1. D\u00e9tail g\u00e9n\u00e9ral des assemblages de murs en acier form\u00e9s \u00e0 froid. R\u00e9f. : SCI P386.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Energy Policies The world is changing immensely due to CO2\u00a0emissions; it can not keep pace naturally. Therefore, saving energy is more important than ever today. The construction business may contribute to this saving by insulating the buildings thermally. The heating and cooling of buildings have a ratio of %48 at Europe\u2019s final energy consumption. Heat… Lire la suite »Performance thermique des b\u00e2timents en acier form\u00e9s \u00e0 froid<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":6909,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":""},"categories":[16],"tags":[19,89,84,103,21,22,23,110,93],"yoast_head":"\nArkitech - Thermal Performance of Cold-Formed Steel Buildings<\/title>\n<meta name=\"description\" content=\"Heat transfer may occur at every surface of the building, but windows and other openings create most of the energy loss.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/arkitechglobal.com\/fr\/performances-thermiques-des-batiments-en-acier-forme-a-froid\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arkitech - 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