{"id":2797,"date":"2021-10-05T16:31:07","date_gmt":"2021-10-05T14:31:07","guid":{"rendered":"https:\/\/fr.twiza.org\/portail\/?page_id=2797"},"modified":"2022-05-20T17:36:32","modified_gmt":"2022-05-20T15:36:32","slug":"isolation","status":"publish","type":"page","link":"https:\/\/fr.twiza.org\/portail\/isolation\/","title":{"rendered":"Isolation"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1093\" height=\"615\" src=\"https:\/\/fr.twiza.org\/portail\/wp-content\/uploads\/2021\/09\/DEF-Isolation-1-O-edited.jpeg\" alt=\"Isolation de maison avec mat\u00e9riaux biosourc\u00e9s\" class=\"wp-image-2799\" srcset=\"https:\/\/fr.twiza.org\/portail\/wp-content\/uploads\/2021\/09\/DEF-Isolation-1-O-edited.jpeg 1093w, https:\/\/fr.twiza.org\/portail\/wp-content\/uploads\/2021\/09\/DEF-Isolation-1-O-edited-600x338.jpeg 600w, https:\/\/fr.twiza.org\/portail\/wp-content\/uploads\/2021\/09\/DEF-Isolation-1-O-edited-300x169.jpeg 300w, https:\/\/fr.twiza.org\/portail\/wp-content\/uploads\/2021\/09\/DEF-Isolation-1-O-edited-1024x576.jpeg 1024w, https:\/\/fr.twiza.org\/portail\/wp-content\/uploads\/2021\/09\/DEF-Isolation-1-O-edited-768x432.jpeg 768w\" sizes=\"(max-width: 1093px) 100vw, 1093px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Isolation : d\u00e9finition<\/h2>\n\n\n\n<p>L&rsquo;<strong>isolation<\/strong> de ton b\u00e2timent a une double vocation : <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>l&rsquo;<strong>isolation thermique<\/strong> qui limite les transferts de chaleur entre l&rsquo;int\u00e9rieur et l&rsquo;ext\u00e9rieur en hiver, et l&rsquo;inverse en \u00e9t\u00e9<\/li><li>l&rsquo;<strong>isolation phonique<\/strong> qui prot\u00e8ge des nuisances sonores<\/li><\/ul>\n\n\n\n<p>Lorsque ta maison est bien isol\u00e9e, elle offre un <strong>confort<\/strong> de meilleur qualit\u00e9 \u00e0 ses occupants. Cela permet \u00e9galement de diminuer le co\u00fbt de tes factures de <a href=\"https:\/\/fr.twiza.org\/portail\/chauffage\/\" target=\"_blank\" rel=\"noreferrer noopener\">chauffage<\/a>, voir de le supprimer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-les-differentes-methodes-d-isolation\">Les diff\u00e9rentes m\u00e9thodes d&rsquo;isolation<\/h2>\n\n\n\n<p>L&rsquo;<strong>isolation<\/strong> de ta maison peut \u00eatre r\u00e9alis\u00e9e par toi-m\u00eame en <strong>auto-construction<\/strong> ou bien par un <strong>professionnel.<\/strong> Elle peut se pr\u00e9senter sous diff\u00e9rentes formes :  plaques, billes, enduit, en vrac, en rouleau etc.<\/p>\n\n\n\n<p>Selon la m\u00e9thode choisi pour ton isolation, elle peut se situer :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>sur le c\u00f4t\u00e9 <strong>ext\u00e9rieur<\/strong> de la paroi, prot\u00e9g\u00e9e par un <a href=\"https:\/\/fr.twiza.org\/portail\/parement-exterieur\/\" target=\"_blank\" rel=\"noreferrer noopener\">parement ext\u00e9rieur<\/a><\/li><li>ou sur le c\u00f4t\u00e9 <strong>int\u00e9rieur<\/strong> de la paroi, rev\u00eatue par un parement int\u00e9rieur (Fermacelle, Placo etc.)<\/li><li>ou enfin au <strong>centre de la paroi<\/strong> (entre ossature bois)<\/li><\/ul>\n\n\n\n<p>Il existe des cas particuliers, comme le <strong>monomur<\/strong> pouvant assumer \u00e0 la fois le r\u00f4le de ton <strong>isolation<\/strong> et de tes <a href=\"https:\/\/fr.twiza.org\/portail\/murs-porteurs\/\" target=\"_blank\" rel=\"noreferrer noopener\">murs porteurs<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Les diff\u00e9rents types d&rsquo;isolants<\/h2>\n\n\n\n<p>Tu as le choix entre trois grandes familles d&rsquo;isolants :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Les <strong>isolants biosourc\u00e9s<\/strong> (exemple : laine de mouton, de chanvre ou fibre de bois)<\/li><li>Les<strong> isolants min\u00e9raux<\/strong> (exemple : laine de roche)<\/li><li>Les <strong>isolants synth\u00e9tiques<\/strong> (exemple : le polystyr\u00e8ne)<\/li><\/ul>\n\n\n\n<p>Bien entendu on t&rsquo;incite \u00e0 privil\u00e9gier les <strong>isolants biosourc\u00e9s<\/strong> , tant pour leur bilan environnemental et social, que pour leurs caract\u00e9ristiques techniques objectivement sup\u00e9rieures : <strong>inertie thermique<\/strong>, <strong>non toxicit\u00e9<\/strong>, <strong>dur\u00e9e de vie<\/strong>, bonne gestion des flux de vapeur d&rsquo;eau (<strong>perspirance<\/strong>) etc.<\/p>\n\n\n\n<p>Les <strong>isolants biosourc\u00e9s<\/strong> peuvent \u00eatre  :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>issus du <strong>recyclage<\/strong> : ouate de cellulose, textiles, cartons etc.)<\/li><li>d&rsquo;origine <strong>v\u00e9g\u00e9tale<\/strong> : laine de chanvre, fibres de bois etc.<\/li><li>d&rsquo;origine <strong>animale<\/strong> : laine de mouton etc.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Les bonnes questions \u00e0 se poser<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>As-tu la possibilit\u00e9 de mettre en \u0153uvre une <strong>isolation ext\u00e9rieure<\/strong>, reconnue pour \u00eatre plus efficace thermiquement ?<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Quelle serait l&rsquo;<strong>\u00e9paisseur<\/strong> d&rsquo;isolation optimale pour ta maison, \u00e0 la fois performante et adapt\u00e9e \u00e0 ton projet ?<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Quels <strong>isolants<\/strong> vas-tu choisir : <strong>chanvre<\/strong>, <strong>li\u00e8ge<\/strong>, <strong>paille<\/strong>, <strong>lin<\/strong>, <strong>ouate de cellulose<\/strong> etc. ?<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Les points de vigilance<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>D\u00e8s la <a href=\"https:\/\/fr.twiza.org\/portail\/conception\/\" target=\"_blank\" rel=\"noreferrer noopener\">conception<\/a> de ton projet, veille \u00e0 bien anticiper les potentiels <strong>ponts thermiques<\/strong>, c&rsquo;est \u00e0 dire les points de ta construction o\u00f9 ta barri\u00e8re isolante est rompue (= d\u00e9perdition de chaleur) afin de les limiter au maximum.<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>N&rsquo;oublie pas qu&rsquo;une bonne <strong>isolation<\/strong> n&rsquo;est efficace qu&rsquo;en \u00e9tant associ\u00e9e \u00e0 une bonne <strong>\u00e9tanch\u00e9it\u00e9 \u00e0 l&rsquo;air<\/strong> (limitation des fuites d&rsquo;air).<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Si ton projet est une <strong>r\u00e9novation<\/strong> de maison ancienne ou une <strong>maison passive<\/strong>, fais appel \u00e0 un <a href=\"https:\/\/fr.twiza.org\/portail\/bureau-detudes\/\" target=\"_blank\" rel=\"noreferrer noopener\">bureau d&rsquo;\u00e9tudes<\/a> thermiques plus \u00e0 m\u00eame de trouver des solutions adapt\u00e9es.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9f\u00e9rences documentaires<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>RT 2012 <\/li><li>DTU 45.1<\/li><li>DTU 45.3<\/li><\/ul>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Isolation : d\u00e9finition L&rsquo;isolation de ton b\u00e2timent a une double vocation : l&rsquo;isolation thermique qui limite les transferts de chaleur entre l&rsquo;int\u00e9rieur et l&rsquo;ext\u00e9rieur en hiver, et l&rsquo;inverse en \u00e9t\u00e9 l&rsquo;isolation phonique qui prot\u00e8ge des nuisances sonores Lorsque ta maison est bien isol\u00e9e, elle offre un confort de meilleur qualit\u00e9 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-2797","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This 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