{"id":67364,"date":"2011-09-21T14:48:38","date_gmt":"2011-09-21T12:48:38","guid":{"rendered":"http:\/\/b.bati-journal.com\/?p=67364"},"modified":"2019-07-15T12:48:17","modified_gmt":"2019-07-15T10:48:17","slug":"rt-2012-et-isolants-biosources","status":"publish","type":"post","link":"https:\/\/batijournal.com\/index.php\/rt-2012-et-isolants-biosources\/67364\/","title":{"rendered":"RT 2012 et isolants biosourc\u00e9s"},"content":{"rendered":"<p><strong>RT 2012 oblige, le secteur de l\u2019isolation figure parmi les points cl\u00e9s de l\u2019am\u00e9lioration de la performance \u00e9nerg\u00e9tique. Techniques anciennes revisit\u00e9es, innovations, meilleures performances des proc\u00e9d\u00e9s existants\u2026 c\u2019est un secteur aujourd\u2019hui en pleine \u00e9volution.<\/strong><\/p>\n<p>Les isolants biosourc\u00e9s d\u2019origine naturelle repr\u00e9sentent environ 5 % du march\u00e9 des isolants et connaissent actuellement un fort d\u00e9veloppement. Les fabricants accompagnent cet essor par une recherche ax\u00e9e sur l\u2019orientation et la densit\u00e9 des fibres.<\/p>\n<p>L\u2019alliance de fibres naturelles donne lieu par ailleurs \u00e0 un champ de recherche pour les industriels, de mani\u00e8re \u00e0 renforcer la performance initiale des mat\u00e9riaux. Le CSTB a constat\u00e9 au cours des derni\u00e8res ann\u00e9es une nette acc\u00e9l\u00e9ration des demandes d\u2019\u00e9valuation de ces produits. Certains de ces isolants ont d\u00e9montr\u00e9 des performances int\u00e9ressantes, pour autant que leur durabilit\u00e9 soit correctement ma\u00eetris\u00e9e. Ainsi, en 2009 et 2010, le CSTB a d\u00e9livr\u00e9 plus d\u2019une trentaine d\u2019Avis techniques pour la mise en oeuvre de produits isolants d\u2019origine v\u00e9g\u00e9tale ou animale.<\/p>\n<p>En 2011, on peut remarquer l\u2019utilisation croissante de v\u00eatements recycl\u00e9s en tant qu\u2019isolant manufactur\u00e9 utilis\u00e9 en mur et toiture. Exemple : du jean transform\u00e9 en proc\u00e9d\u00e9 d\u2019isolation thermique, sous forme de panneaux ou de rouleaux constitu\u00e9s d\u2019une nappe de fibres textiles issues de v\u00eatements usag\u00e9s, effiloch\u00e9s s\u00e9par\u00e9ment selon le type de fibre. Les fibres sont m\u00e9lang\u00e9es et li\u00e9es entre elles par des fibres thermo-fusibles afin de former un matelas isolant.<\/p>\n<p>Autre mat\u00e9riau qui a le vent en poupe : le papier. Papier journal broy\u00e9 et souffl\u00e9 sur planchers \u00e0 combles perdus, papier journal insuffl\u00e9 sur parois verticales (ossature bois\u2026), papier journal humide projet\u00e9 sur parois verticales\u2026 Le premier Avis technique attribu\u00e9 \u00e0 un isolant en ouate de cellulose date de plus de dix ans. Pour autant, le nombre de proc\u00e9d\u00e9s exploitant le concept est actuellement en forte augmentation. C\u2019est pour le CSTB l\u2019isolant biosourc\u00e9 qui lui fait constater les demandes d\u2019\u00e9valuation les plus nombreuses.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RT 2012 oblige, le secteur de l\u2019isolation figure parmi les points cl\u00e9s de l\u2019am\u00e9lioration de la performance \u00e9nerg\u00e9tique. Techniques anciennes revisit\u00e9es, innovations, meilleures performances des proc\u00e9d\u00e9s existants\u2026 c\u2019est un secteur aujourd\u2019hui en pleine \u00e9volution. Les isolants biosourc\u00e9s d\u2019origine naturelle repr\u00e9sentent environ 5 % du march\u00e9 des isolants et connaissent actuellement un fort d\u00e9veloppement. Les fabricants [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":46547,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[10530],"tags":[6246,1240],"class_list":["post-67364","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-isolant-biosource","tag-rt-2012"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RT 2012 et isolants biosourc\u00e9s<\/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:\/\/batijournal.com\/index.php\/rt-2012-et-isolants-biosources\/67364\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RT 2012 et isolants biosourc\u00e9s\" \/>\n<meta property=\"og:description\" content=\"RT 2012 oblige, le secteur de l\u2019isolation figure parmi les points cl\u00e9s de l\u2019am\u00e9lioration de la performance \u00e9nerg\u00e9tique. 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