{"id":605,"date":"2023-09-07T13:58:57","date_gmt":"2023-09-07T11:58:57","guid":{"rendered":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/?p=605"},"modified":"2025-11-25T11:11:15","modified_gmt":"2025-11-25T10:11:15","slug":"dtu-24-1-coffrage-et-gaine-du-conduit","status":"publish","type":"post","link":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/la-revue\/reglementation\/dtu-24-1-coffrage-et-gaine-du-conduit\/","title":{"rendered":"DTU 24.1 &#8211; Coffrage et gaine technique : comprendre les exigences de r\u00e9sistance au feu pour les conduits de fum\u00e9e"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>D\u00e9finitions et usages, Jeremias vous explique l&rsquo;objectif du coffrage et de la gaine ainsi que la norme qui leur est rattach\u00e9e. <\/p>\n","protected":false},"author":4,"featured_media":620,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[12],"tags":[],"acf":{"temps_de_lecture":"01","introduction":"<p data-start=\"572\" data-end=\"961\">Dans le domaine des <strong data-start=\"592\" data-end=\"613\">conduits de fum\u00e9e<\/strong> et des <strong data-start=\"621\" data-end=\"655\">chaufferies de forte puissance<\/strong>, la distinction entre <em data-start=\"678\" data-end=\"688\">coffrage<\/em> et <em data-start=\"692\" data-end=\"709\">gaine technique<\/em> est essentielle. Leur r\u00f4le en mati\u00e8re de <strong data-start=\"751\" data-end=\"772\">s\u00e9curit\u00e9 incendie<\/strong>, de <strong data-start=\"777\" data-end=\"798\">r\u00e9sistance au feu<\/strong> et de <strong data-start=\"805\" data-end=\"837\">protection des installations<\/strong> est encadr\u00e9 par des exigences r\u00e9glementaires strictes, notamment lorsque les appareils utilisent un <strong data-start=\"938\" data-end=\"960\">combustible solide<\/strong>.<\/p>\n<p data-start=\"963\" data-end=\"1098\">Cet article vous explique clairement les diff\u00e9rences, les usages et les obligations li\u00e9es aux gaines techniques pour conduits de fum\u00e9e.<\/p>\n","blocs":[{"acf_fc_layout":"bloc_images","images":[{"image":{"ID":620,"id":620,"title":"DTU 24.1 - coffrage et gaine du conduit - blog r\u00e9glementation","filename":"blog-reglementation-dtu-coffrage-gaine.png","filesize":203950,"url":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine.png","link":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/la-revue\/reglementation\/dtu-24-1-coffrage-et-gaine-du-conduit\/attachment\/blog-reglementation-dtu-coffrage-gaine\/","alt":"DTU 24.1 - coffrage et gaine du conduit - blog r\u00e9glementation","author":"4","description":"","caption":"","name":"blog-reglementation-dtu-coffrage-gaine","status":"inherit","uploaded_to":605,"date":"2020-09-07 12:24:45","modified":"2020-09-07 12:25:11","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/wp\/wp-includes\/images\/media\/default.png","width":542,"height":355,"sizes":{"thumbnail":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine-542x355.png","thumbnail-width":542,"thumbnail-height":355,"medium":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine-300x196.png","medium-width":300,"medium-height":196,"medium_large":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine.png","medium_large-width":542,"medium_large-height":355,"large":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine.png","large-width":542,"large-height":355,"1536x1536":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine.png","1536x1536-width":542,"1536x1536-height":355,"2048x2048":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine.png","2048x2048-width":542,"2048x2048-height":355,"post-thumbnail":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine-542x355.png","post-thumbnail-width":542,"post-thumbnail-height":355,"slider":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine.png","slider-width":542,"slider-height":355,"timeline":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/app\/uploads\/2020\/09\/blog-reglementation-dtu-coffrage-gaine-399x257.png","timeline-width":399,"timeline-height":257}}}]},{"acf_fc_layout":"contenu_texte","texte":"<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>Dans quel cas une gaine technique est-elle obligatoire pour prot\u00e9ger les conduits de fum\u00e9e contre le feu ?<\/h2>\n<p data-start=\"1165\" data-end=\"1353\">Pour tout <strong data-start=\"1175\" data-end=\"1220\">appareil de puissance sup\u00e9rieure \u00e0 300 kW<\/strong> fonctionnant avec un <strong data-start=\"1242\" data-end=\"1264\">combustible solide<\/strong>, une gaine technique est obligatoire <strong data-start=\"1302\" data-end=\"1352\">si le conduit traverse l\u2019int\u00e9rieur du b\u00e2timent<\/strong>.<\/p>\n<p data-start=\"1355\" data-end=\"1382\">Les points cl\u00e9s \u00e0 retenir :<\/p>\n<ul>\n<li data-start=\"1386\" data-end=\"1468\">La gaine doit pr\u00e9senter un <strong data-start=\"1413\" data-end=\"1449\">classement de r\u00e9action au feu M0<\/strong> (incombustible).<\/li>\n<li data-start=\"1386\" data-end=\"1468\">Les <strong data-start=\"1475\" data-end=\"1508\">gainages de moins de 6 m\u00e8tres<\/strong> ne sont pas concern\u00e9s.<\/li>\n<li data-start=\"1386\" data-end=\"1468\">La gaine <strong data-start=\"1545\" data-end=\"1621\">n\u2019est pas consid\u00e9r\u00e9e comme un conduit de ventilation haute de chaufferie<\/strong> : elle ne remplace donc pas la ventilation r\u00e9glementaire.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>Coffrage vs gaine technique : quelles diff\u00e9rences ?<\/h2>\n<p>&nbsp;<\/p>\n<h3 data-start=\"1749\" data-end=\"1806\"><strong data-start=\"1753\" data-end=\"1804\">Le coffrage : habillage sans fonction coupe-feu<\/strong><\/h3>\n<p>Le coffrage sert uniquement \u00e0 <strong data-start=\"1837\" data-end=\"1849\">habiller<\/strong> ou <strong data-start=\"1853\" data-end=\"1867\">dissimuler<\/strong> un conduit de fum\u00e9e.<br data-start=\"1888\" data-end=\"1891\" \/>Il <strong data-start=\"1894\" data-end=\"1934\">ne poss\u00e8de aucune fonction coupe-feu<\/strong> et ne permet pas la travers\u00e9e s\u00e9curis\u00e9e de plusieurs niveaux ou locaux.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 data-start=\"2008\" data-end=\"2080\"><strong data-start=\"2012\" data-end=\"2078\">La gaine technique : protection incendie et s\u00e9curit\u00e9 renforc\u00e9e des conduits de fum\u00e9e<\/strong><\/h3>\n<p data-start=\"2081\" data-end=\"2156\">La gaine technique, quant \u00e0 elle, assure plusieurs fonctions essentielles :<\/p>\n<ul>\n<li data-start=\"2160\" data-end=\"2243\"><strong data-start=\"2160\" data-end=\"2183\">Protection incendie<\/strong> : r\u00e9sistance au feu et limitation du transfert thermique.<\/li>\n<li data-start=\"2160\" data-end=\"2243\"><strong data-start=\"2246\" data-end=\"2268\">S\u00e9curit\u00e9 m\u00e9canique<\/strong> : protection contre les chocs ou d\u00e9gradations.<\/li>\n<li data-start=\"2160\" data-end=\"2243\"><strong data-start=\"2320\" data-end=\"2350\">Encoffrement r\u00e9glementaire<\/strong> : n\u00e9cessaire pour les conduits traversant des zones sensibles.<\/li>\n<\/ul>\n<p data-start=\"2417\" data-end=\"2508\">Elle est donc indispensable dans les contextes o\u00f9 la s\u00e9curit\u00e9 incendie est un enjeu majeur.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>Les usages et exigences d\u2019une gaine technique<\/h2>\n<p>Pour \u00eatre conforme, la <strong data-start=\"2596\" data-end=\"2635\">gaine technique de conduit de fum\u00e9e<\/strong> doit r\u00e9pondre \u00e0 plusieurs crit\u00e8res r\u00e9glementaires.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 data-start=\"2688\" data-end=\"2731\"><strong data-start=\"2692\" data-end=\"2731\">Ventilation obligatoire de la gaine<\/strong><\/h3>\n<p data-start=\"2732\" data-end=\"2765\">La gaine doit \u00eatre ventil\u00e9e par :<\/p>\n<ul>\n<li data-start=\"2768\" data-end=\"2792\">un <strong data-start=\"2771\" data-end=\"2787\">orifice haut<\/strong> et<\/li>\n<li data-start=\"2768\" data-end=\"2792\">un <strong data-start=\"2798\" data-end=\"2813\">orifice bas<\/strong>,<\/li>\n<\/ul>\n<p data-start=\"2818\" data-end=\"2934\">Chacun offrant <strong data-start=\"2833\" data-end=\"2871\">au minimum 50 cm\u00b2 de section utile<\/strong>, avec d\u00e9bouch\u00e9 vers l\u2019ext\u00e9rieur et protection contre la pluie.<\/p>\n<p data-start=\"2936\" data-end=\"3025\">Cette ventilation permet de respecter les <strong data-start=\"2978\" data-end=\"3021\">temp\u00e9ratures surfaciques r\u00e9glementaires, de 50\u00b0C et 80\u00b0C.\u00a0<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 data-start=\"3122\" data-end=\"3147\"><strong data-start=\"3126\" data-end=\"3147\">R\u00e9sistance au feu<\/strong><\/h3>\n<p data-start=\"3148\" data-end=\"3184\">Selon le type de b\u00e2timent travers\u00e9 :<\/p>\n<ul>\n<li data-start=\"3188\" data-end=\"3290\"><strong data-start=\"3188\" data-end=\"3210\">Coupe-feu 2 heures<\/strong> \u2192 lorsque la gaine traverse uniquement un b\u00e2timent d\u2019habitation ou tertiaire.<\/li>\n<li data-start=\"3188\" data-end=\"3290\"><strong data-start=\"3293\" data-end=\"3315\">Coupe-feu 3 heures<\/strong> \u2192 lorsque la travers\u00e9e concerne un <strong data-start=\"3351\" data-end=\"3393\">ERP (\u00c9tablissement Recevant du Public)<\/strong>.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 data-start=\"3396\" data-end=\"3446\"><strong data-start=\"3400\" data-end=\"3446\">Accessibilit\u00e9 et dimensions r\u00e9glementaires<\/strong><\/h3>\n<p data-start=\"3447\" data-end=\"3528\">Chaque conduit doit \u00eatre <strong data-start=\"3472\" data-end=\"3499\">accessible et visitable<\/strong>, avec un espace minimal de :<\/p>\n<ul>\n<li data-start=\"3532\" data-end=\"3554\"><strong data-start=\"3532\" data-end=\"3551\">0,60 m x 0,60 m<\/strong>,<\/li>\n<li data-start=\"3532\" data-end=\"3554\">\u00c9quip\u00e9 d\u2019<strong data-start=\"3566\" data-end=\"3578\">\u00e9chelons<\/strong>, de <strong data-start=\"3583\" data-end=\"3594\">paliers<\/strong> ou d\u2019une <strong data-start=\"3604\" data-end=\"3617\">crinoline<\/strong> selon les hauteurs et configurations.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p data-start=\"3657\" data-end=\"3777\">Pour les g\u00e9n\u00e9rateurs de puissance <strong data-start=\"3691\" data-end=\"3716\">sup\u00e9rieure \u00e0 2 000 kW<\/strong>, ce volume minimal de 0,60 x 0,60 m devient <strong data-start=\"3761\" data-end=\"3776\">obligatoire<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 data-start=\"3784\" data-end=\"3803\"><strong data-start=\"3790\" data-end=\"3803\">En r\u00e9sum\u00e9<\/strong><\/h2>\n<ul>\n<li data-start=\"3807\" data-end=\"3943\">La <strong data-start=\"3810\" data-end=\"3829\">gaine technique<\/strong> est indispensable pour les conduits de fum\u00e9e int\u00e9rieurs raccord\u00e9s \u00e0 un appareil &gt;300 kW.<\/li>\n<li data-start=\"3807\" data-end=\"3943\">Elle offre une <strong data-start=\"3961\" data-end=\"3984\">protection incendie<\/strong>, thermique et m\u00e9canique sup\u00e9rieure au coffrage.<\/li>\n<li data-start=\"3807\" data-end=\"3943\">La r\u00e9glementation impose des exigences strictes en termes de <strong data-start=\"4098\" data-end=\"4113\">ventilation<\/strong>, <strong data-start=\"4115\" data-end=\"4136\">r\u00e9sistance au feu<\/strong> et <strong data-start=\"4140\" data-end=\"4157\">accessibilit\u00e9<\/strong>.<\/li>\n<\/ul>\n<p data-start=\"4162\" data-end=\"4284\">Ce dispositif joue un r\u00f4le majeur dans la <strong data-start=\"4204\" data-end=\"4246\">s\u00e9curit\u00e9 des chaufferies industrielles<\/strong>, des b\u00e2timents tertiaires et des ERP.<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p>&gt; Jeremias propose \u00e9galement en compl\u00e9ment pour la mise en \u0153uvre de ce type d\u2019installation, sa gamme de <a href=\"https:\/\/jeremias.fr\/coquille-isolante-kitisol-dw-eco-2\" target=\"_blank\" rel=\"noopener\"><strong>coquilles isolantes<\/strong> \u00ab\u00a0KITISOL\u00a0\u00bb<\/a> qui permet d\u2019assurer une s\u00e9curit\u00e9 totale par rapport aux mat\u00e9riaux combustibles et de cr\u00e9er une \u00e9tanch\u00e9it\u00e9 parfaite dans le cadre de la r\u00e9glementation de construction BBC.<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h2>Besoin d&rsquo;un conseil pour votre projet en conduits de fum\u00e9e ?<\/h2>\n<p><a class=\"button button-solid blue text-uppercase fz-14 text-white\" href=\"https:\/\/jeremias.fr\/nous-contacter\">Contactez notre \u00e9quipe d\u2019expert<\/a><\/p>\n"}],"push_articles":[{"ID":703,"post_author":"4","post_date":"2023-10-21 14:00:56","post_date_gmt":"2023-10-21 12:00:56","post_content":"","post_title":"DTU 24.1 - Que contient ce document normatif ?","post_excerpt":"Voici un r\u00e9sum\u00e9 de tous les champs d'application du DTU 24.1 ! Retrouvez chaque point du DTU d\u00e9taill\u00e9 dans des articles sp\u00e9cifiques. ","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"le-dtu-24-1-travaux-de-fumisterie","to_ping":"","pinged":"","post_modified":"2025-11-06 14:13:02","post_modified_gmt":"2025-11-06 13:13:02","post_content_filtered":"","post_parent":0,"guid":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/?p=703","menu_order":0,"post_type":"post","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":598,"post_author":"4","post_date":"2023-09-07 13:50:39","post_date_gmt":"2023-09-07 11:50:39","post_content":"","post_title":"Quelles sont les Exigences de la R\u00e9glementation DTU 24.1 pour le Carneau et le Raccordement ?","post_excerpt":"Qu'est-ce qu'un carneau ? Quelles r\u00e8gles doit-on suivre lors de l'installation d'un raccordement ? On vous dit tout. ","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"dtu-24-1-carneau-et-raccordement","to_ping":"","pinged":"","post_modified":"2024-07-11 10:16:11","post_modified_gmt":"2024-07-11 08:16:11","post_content_filtered":"","post_parent":0,"guid":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/?p=598","menu_order":0,"post_type":"post","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":737,"post_author":"3","post_date":"2023-11-08 09:35:56","post_date_gmt":"2023-11-08 08:35:56","post_content":"","post_title":"DTU 24.1 - Distance de s\u00e9curit\u00e9 aux mat\u00e9riaux combustibles","post_excerpt":"La distance de s\u00e9curit\u00e9 aux mat\u00e9riaux combustibles \u00e0 respecter est d\u00e9fini clairement dans la norme DTU 24.1. On vous dit tout. ","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"dtu-24-1-distance-de-securite-aux-materiaux-combustibles","to_ping":"","pinged":"","post_modified":"2025-11-06 14:11:02","post_modified_gmt":"2025-11-06 13:11:02","post_content_filtered":"","post_parent":0,"guid":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/?p=737","menu_order":0,"post_type":"post","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":666,"post_author":"4","post_date":"2023-09-07 15:55:12","post_date_gmt":"2023-09-07 13:55:12","post_content":"","post_title":"DTU 24.1 - Les conditions de d\u00e9voiements des conduits de fum\u00e9e","post_excerpt":"Degr\u00e9s des angles, calculs de d\u00e9voiements, tout ce que dit la norme \u00e0 ce sujet et ce que vous propose Jeremias pour vous aider \u00e0 la respecter. ","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"dtu-24-1-devoiements-des-conduits-de-fumee","to_ping":"","pinged":"","post_modified":"2023-12-13 16:44:55","post_modified_gmt":"2023-12-13 15:44:55","post_content_filtered":"","post_parent":0,"guid":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/?p=666","menu_order":0,"post_type":"post","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":675,"post_author":"4","post_date":"2023-09-07 16:14:05","post_date_gmt":"2023-09-07 14:14:05","post_content":"","post_title":"DTU 24.1 - L'entretien et le diagnostic d\u2019un conduit de fum\u00e9e","post_excerpt":"Le diagnostic et le ramonage d'un conduit sont essentiels pour la pr\u00e9servation du syst\u00e8me install\u00e9. Voici ce que dit le DTU.","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"dtu-24-1-entretien-et-diagnostic-dun-conduit","to_ping":"","pinged":"","post_modified":"2023-12-13 16:39:26","post_modified_gmt":"2023-12-13 15:39:26","post_content_filtered":"","post_parent":0,"guid":"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/?p=675","menu_order":0,"post_type":"post","post_mime_type":"","comment_count":"0","filter":"raw"}],"cta":"Lire plus","utiliser_layout_presta":true,"produits_suggeres":[]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>DTU 24.1 - R\u00e9sistance au feu du conduit de fum\u00e9e par l&#039;installation d&#039;une gaine<\/title>\n<meta name=\"description\" content=\"D\u00e9finitions et usages, Jeremias vous explique l&#039;objectif du coffrage et de la gaine ainsi que la norme qui leur est rattach\u00e9e.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jeremias.fr\/fabricant-conduit-tubage\/la-revue\/reglementation\/dtu-24-1-coffrage-et-gaine-du-conduit\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DTU 24.1 - 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