{"id":838,"date":"2022-07-03T00:00:00","date_gmt":"2022-07-02T22:00:00","guid":{"rendered":"https:\/\/www.depanneo.com\/guide\/?p=838"},"modified":"2025-06-26T08:45:57","modified_gmt":"2025-06-26T06:45:57","slug":"isoler-plafond-deja-existant","status":"publish","type":"post","link":"https:\/\/www.depanneo.com\/guide\/isoler-plafond-deja-existant\/","title":{"rendered":"Comment isoler un plafond d\u00e9j\u00e0 existant ?"},"content":{"rendered":"<p><strong>L&rsquo;isolation d&rsquo;un plafond d\u00e9j\u00e0 existant<\/strong> d&rsquo;une habitation doit \u00eatre effectu\u00e9e dans les r\u00e8gles de l\u2019art. Cette derni\u00e8re varie selon plusieurs crit\u00e8res, \u00e0 savoir : les mat\u00e9riaux utilis\u00e9s, les zones de votre maison que vous souhaitez isoler, le conditionnement des mat\u00e9riaux, la surface habitable disponible, etc. Plusieurs param\u00e8tres jouent \u00e9galement un r\u00f4le cl\u00e9 afin d&rsquo;assurer une isolation performante.<\/p>\n<p>Mais comment<strong> isoler un plafond d\u00e9j\u00e0 existant<\/strong> ? C&rsquo;est ce que nous allons voir dans le pr\u00e9sent article. Suivez-nous donc pour plus de d\u00e9tails quant \u00e0 ce sujet.<\/p>\n<h2>Comment proc\u00e9der \u00e0 l&rsquo;isolation d&rsquo;un plafond d\u00e9j\u00e0 existant ?<\/h2>\n<p>Proc\u00e9dez \u00e0 l\u2019isolation de votre b\u00e2timent dans le but de r\u00e9duire votre consommation \u00e9nerg\u00e9tique et pour<strong> limiter les<\/strong><strong> d\u00e9perditions de chaleur<\/strong>. Nous parlerons, ci-dessous, de l\u2019isolation du plafond d\u00e9j\u00e0 existant, de mani\u00e8re \u00e0 diminuer votre facture et \u00e0 augmenter votre confort. Mais comment s&rsquo;y prendre ? La r\u00e9ponse se trouve dans la suite de cet article.<\/p>\n<h3>L\u2019isolation du plafond du garage ou de la cave<\/h3>\n<p><strong>Une isolation<\/strong> s&rsquo;impose dans le but d&rsquo;\u00e9viter les probl\u00e8mes d\u2019humidit\u00e9 dans les garages ou dans les caves. Dans ce cas, le plafond repr\u00e9sente la meilleure partie \u00e0 isoler. Optez pour des plaques isolantes, telles que :<\/p>\n<ul>\n<li>Le PUR ;<\/li>\n<li>Le PIR ;<\/li>\n<li>L\u2019EPS.<\/li>\n<\/ul>\n<p>Ces derni\u00e8res ne n\u00e9cessitent pas un grand espace. Les vides sous le plafond dans les garages ou les caves sont d&rsquo;ailleurs d\u00e9j\u00e0 occup\u00e9s par les canalisations. Vous pouvez cependant \u00e9galement utiliser des <strong>isolants synth\u00e9tiques<\/strong>, min\u00e9raux ou naturels, selon la disposition de l\u2019espace dans votre cave ou votre garage.<\/p>\n<blockquote class=\"custom-dpno-block block-infos\">\n<p class=\"block-title\"><i class=\"fa-solid fa-circle-info\"><\/i>Informations:<\/p>\n<p>Vous souhaitez en savoir plus sur <a href=\"https:\/\/www.depanneo.com\/guide\/comment-isoler-un-plafond-de-cave\/\">comment isoler un plafond de cave<\/a> ? Vous pouvez retrouver tous nos conseils et astuces d&rsquo;expert pour \u00e9viter toute perte de chaleur dans les \u00e9tages sup\u00e9rieurs.<\/p><\/blockquote>\n<h3>L\u2019isolation du plafond entre deux niveaux<\/h3>\n<p>Afin de <strong>conserver la chaleur dans un b\u00e2timent<\/strong> et d&rsquo;y limiter les bruits, l\u2019isolation du plafond entre les deux niveaux est tr\u00e8s importante. Vous devriez utiliser :<\/p>\n<ul>\n<li>La ouate cellulose ;<\/li>\n<li>Le PUR ;<\/li>\n<li>La laine de verre ou <strong>la laine de roche<\/strong>.<\/li>\n<\/ul>\n<p>Mais avant cela, il faudrait<strong> installer sous le plafond d\u00e9j\u00e0 existant<\/strong>, un plafond autoportant. Ne n\u00e9gligez pas la finition, car elle va donner un cachet \u00e0 vos pi\u00e8ces de maison, et ce, peu importe le<strong> type de l\u2019isolant<\/strong> que vous avez choisi.<\/p>\n<h3>L\u2019isolation du plafond du grenier<\/h3>\n<p><strong>L\u2019isolation du plafond du grenier<\/strong> est aussi \u00e0 envisager afin d&rsquo;am\u00e9liorer votre confort. C&rsquo;est la technique d\u2019isolation par l\u2019int\u00e9rieur que vous devriez adopter. Privil\u00e9giez les laines min\u00e9rales et les panneaux en rouleaux.<\/p>\n<h2>Quelle est la technique de pose des isolants d&rsquo;un plafond d\u00e9j\u00e0 existant ?<\/h2>\n<p>Les <strong>techniques de pose des isolants<\/strong> sont les m\u00eames, quel que soit le plafond de la pi\u00e8ce \u00e0 isoler. Ces derni\u00e8res reposent sur le fait d\u2019installer les isolants sous forme de rouleau en dessous du plafond.<\/p>\n<p>Dans ce cas, la mise en place de suspentes est requise, car cela va permettre de fixer les rails ou les fourrures qui maintiendront<strong> les plaques isolantes<\/strong>. Dans le cas du li\u00e8ge ou du polystyr\u00e8ne, la pose se fera sur le support directement.<\/p>\n<h3>Quels sont les mat\u00e9riaux utilis\u00e9s pour l\u2019isolation du plafond existant ?<\/h3>\n<p>Le choix est tr\u00e8s vaste quant aux isolants pour un plafond d\u00e9j\u00e0 existant. Il existe des <strong>isolants synth\u00e9tiques<\/strong> regroupant :<\/p>\n<ul>\n<li>Le polyur\u00e9thane ;<\/li>\n<li>Le polystyr\u00e8ne extrud\u00e9 ;<\/li>\n<li>Le polystyr\u00e8ne expans\u00e9.<\/li>\n<\/ul>\n<p>Optez pour les fibres v\u00e9g\u00e9tales ou pour les fibres min\u00e9rales, comme la laine de verre, si ces derniers ne conviennent pas \u00e0 l&rsquo;espace \u00e9tant disponible dans votre plafond. Quant aux<strong> isolants multi-couches<\/strong> ou minces, ils sont \u00e0 privil\u00e9gier pour les espaces sous un plafond \u00e9troit.<\/p>\n<p>Les travaux d&rsquo;<strong>isolation d&rsquo;un plafond d\u00e9j\u00e0 existant<\/strong> sont assez simples, ils repr\u00e9sentent m\u00eame un jeu d&rsquo;enfants pour les personnes qui bricolent. Cependant, afin d&rsquo;\u00e9viter des d\u00e9perditions \u00e9nerg\u00e9tiques inutiles, vous devriez prendre contact avec un professionnel du domaine.<\/p>\n<p>Essayez de demander plusieurs diff\u00e9rents devis avant de choisir le <strong>prestataire de services<\/strong> correspondant au mieux \u00e0 vos attentes. Privil\u00e9giez celui qui propose des services de qualit\u00e9 et avec un co\u00fbt correspondant \u00e0 votre budget, bien \u00e9videmment.<\/p>\n<p>Le co\u00fbt de l\u2019<strong>isolation du plafond de la cave<\/strong> ou du garage se situerait entre 20 et 60 \u20ac pour le m\u00b2. Comptez 50 \u20ac pour le m\u00b2, pour le prix de l&rsquo;isolation du plafond entre de deux \u00e9tages.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;isolation d&rsquo;un plafond d\u00e9j\u00e0 existant d&rsquo;une habitation doit \u00eatre effectu\u00e9e dans les r\u00e8gles de l\u2019art. Cette derni\u00e8re varie selon plusieurs crit\u00e8res, \u00e0 savoir : les mat\u00e9riaux utilis\u00e9s, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":839,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"Isoler un plafond d\u00e9j\u00e0 existant : comment est-ce possible ?","_yoast_wpseo_metadesc":"Comment isoler un plafond d\u00e9j\u00e0 existant ? D\u00e9couvrez notre article sur le sujet : Isoler un plafond d\u00e9j\u00e0 existant : comment est-ce possible ?","footnotes":""},"categories":[11],"tags":[],"class_list":["post-838","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-isolation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Isoler un plafond d\u00e9j\u00e0 existant : comment est-ce possible ?<\/title>\n<meta name=\"description\" content=\"Comment isoler un plafond d\u00e9j\u00e0 existant ? 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