{"id":3037,"date":"2019-06-28T16:15:27","date_gmt":"2019-06-28T14:15:27","guid":{"rendered":"https:\/\/agencepoush-newmatriciel.pf503.wpserveur.net\/?p=3037"},"modified":"2019-07-01T11:06:32","modified_gmt":"2019-07-01T09:06:32","slug":"lowtech","status":"publish","type":"post","link":"https:\/\/www.matriciel.be\/en\/lowtech\/","title":{"rendered":"Et si on parlait du “low-tech” en cette p\u00e9riode de fortes chaleurs !"},"content":{"rendered":"On annonce encore des temp\u00e9ratures \u00e9lev\u00e9es pour les prochains jours et les climatiseurs risquent de continuer \u00e0 tourner \u00e0 pleine puissance dans nos b\u00e2timents. Mais plut\u00f4t que de regarder avec inqui\u00e9tude la courbe des temp\u00e9ratures diurnes \u2026\n\n\"\u00a9\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n\u2026 regardons plut\u00f4t la courbe des temp\u00e9ratures nocturnes et celle de la vitesse du vent \u2026\n\n\n\n\"\u00a9\n\n \n\n\"\u00a9\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n\u2026 pour se rendre compte du fabuleux potentiel de rafra\u00eechissement naturel qui nous est offert la nuit, pour autant que nous sachions l’exploiter efficacement.\n\nLa puissance du vent et les 10 \u00b0C d’\u00e9cart (en moyenne et particuli\u00e8rement les jours sans nuages) entre la temp\u00e9rature diurne et la temp\u00e9rature nocturne suffisent pour exploiter pleinement le potentiel de ventilation et la masse thermique d’un b\u00e2timent con\u00e7u selon des principes low-tech pour \u00e9cr\u00eater les pics de temp\u00e9rature et d\u00e9phaser ceux-ci en fin de journ\u00e9e. Et tout cela gratuitement, sans syst\u00e8me de climatisation on\u00e9reux \u00e0 installer et \u00e0 entretenir et souvent bien moins efficace que ses caract\u00e9ristiques techniques ne le laisseraient pr\u00e9sumer en raison de la complexit\u00e9 de compr\u00e9hension de sa bonne r\u00e9gulation.\n\nCette strat\u00e9gie de rafra\u00eechissement passif demande un effort de conception en amont du projet de construction afin de pouvoir \u00eatre mise en \u0153uvre efficacement mais permet surtout de r\u00e9duire l’empreinte environnementale d’exploitation du b\u00e2timent (consommations de refroidissement) ainsi que son empreinte environnementale de construction\/d\u00e9molition sachant que les \u00e9quipements techniques (de refroidissement, dans ce cas-ci) peuvent avoir un impact jusqu’\u00e0 vingt fois sup\u00e9rieur \u00e0 celui des mat\u00e9riaux en fonction du crit\u00e8re environnemental consid\u00e9r\u00e9 !","protected":false},"excerpt":{"rendered":"

On annonce encore des temp\u00e9ratures \u00e9lev\u00e9es pour les prochains jours et les climatiseurs risquent de continuer \u00e0 tourner \u00e0 pleine puissance dans nos b\u00e2timents. Mais plut\u00f4t que de regarder avec inqui\u00e9tude la courbe des temp\u00e9ratures diurnes \u2026                         \u2026 regardons plut\u00f4t la courbe des…<\/p>\n","protected":false},"author":5,"featured_media":3066,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[132],"tags":[112,149],"class_list":["post-3037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-metier","tag-energie-et-confort","tag-low-tech","category-132","description-off"],"yoast_head":"\nEt si on parlait du "low-tech" en cette p\u00e9riode de fortes chaleurs ! - MATRIciel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.matriciel.be\/lowtech\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Et si on parlait du "low-tech" en cette p\u00e9riode de fortes chaleurs ! - MATRIciel\" \/>\n<meta property=\"og:description\" content=\"On annonce encore des temp\u00e9ratures \u00e9lev\u00e9es pour les prochains jours et les climatiseurs risquent de continuer \u00e0 tourner \u00e0 pleine puissance dans nos b\u00e2timents. 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