{"id":1944,"date":"2026-10-14T11:26:33","date_gmt":"2026-10-14T10:26:33","guid":{"rendered":"https:\/\/vdb-adhesives.com\/?p=1944"},"modified":"2026-09-21T11:27:46","modified_gmt":"2026-09-21T10:27:46","slug":"mastics-ignifuges-pour-joints-de-construction","status":"publish","type":"post","link":"https:\/\/vdb-adhesives.com\/fr\/fire-resistant-sealants-for-construction-joints\/","title":{"rendered":"S\u00e9lection de mastics r\u00e9sistants au feu pour les joints de construction critiques"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819-1024x683.jpg\" alt=\"Mastics r\u00e9sistants au feu\" class=\"wp-image-1940\" srcset=\"https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819-1024x683.jpg 1024w, https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819-300x200.jpg 300w, https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819-768x512.jpg 768w, https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819-1536x1025.jpg 1536w, https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819-18x12.jpg 18w, https:\/\/vdb-adhesives.com\/wp-content\/uploads\/2026\/09\/pexels-bidvine-517980-2293819.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Prot\u00e9ger les personnes et les biens gr\u00e2ce \u00e0 un mastic coupe-feu adapt\u00e9<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choisir les bons mastics coupe-feu pour les joints de construction ne se r\u00e9sume pas \u00e0 cocher une case sur une fiche technique. Il s&#039;agit d&#039;assurer la s\u00e9curit\u00e9 des personnes, de donner aux pompiers le temps d&#039;intervenir et de garantir la p\u00e9rennit\u00e9 du b\u00e2timent pour permettre la reprise des activit\u00e9s. Un mastic inadapt\u00e9 peut compromettre l&#039;ensemble du dispositif de s\u00e9curit\u00e9 incendie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les b\u00e2timents modernes regorgent de d\u00e9tails de jonction complexes. On trouve des joints de dilatation entre les dalles, des travers\u00e9es de r\u00e9seaux o\u00f9 passent tuyaux et c\u00e2bles \u00e0 travers les murs, et des raccords de fa\u00e7ade qui doivent r\u00e9sister aux intemp\u00e9ries et aux mouvements. Si ces points ne retiennent pas le feu et la fum\u00e9e, m\u00eame les meilleures portes et murs coupe-feu ne rempliront pas leur fonction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet article explique le fonctionnement des mastics coupe-feu, la signification des principales classifications de r\u00e9sistance au feu, comment choisir les produits adapt\u00e9s aux diff\u00e9rents types de joints et quelles v\u00e9rifications pratiques vous permettront de faire les bons choix. Nous vous montrerons \u00e9galement pourquoi des \u00e9changes pr\u00e9alables avec un fabricant sp\u00e9cialis\u00e9 peuvent simplifier consid\u00e9rablement la gestion des joints \u00e0 risque.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Comment les mastics ignifuges prot\u00e8gent l&#039;int\u00e9grit\u00e9 des b\u00e2timents<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les mastics coupe-feu font partie de la protection passive contre l&#039;incendie. Ils contribuent \u00e0 former des compartiments coupe-feu, confinant ainsi la chaleur, les flammes et la fum\u00e9e dans une zone d\u00e9finie pendant une dur\u00e9e d\u00e9termin\u00e9e. Cela permet aux personnes de se mettre \u00e0 l&#039;abri et aux pompiers d&#039;atteindre le foyer de l&#039;incendie sans que celui-ci ne se propage incontr\u00f4l\u00e9e par les interstices et les joints.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sous l&#039;effet du feu, diff\u00e9rents produits d&#039;\u00e9tanch\u00e9it\u00e9 r\u00e9agissent diff\u00e9remment\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les mastics intumescents gonflent sous l&#039;effet de la chaleur, comblant les espaces autour des tuyaux ou des c\u00e2bles en se ramollissant ou en se consumant.<\/li>\n\n\n\n<li>Les mastics ignifuges non intumescents sont con\u00e7us pour conserver leur forme et leur adh\u00e9rence \u00e0 des temp\u00e9ratures tr\u00e8s \u00e9lev\u00e9es.<\/li>\n\n\n\n<li>Les produits de qualit\u00e9 sont test\u00e9s afin de garantir leur adh\u00e9rence aux parois du joint et d&#039;\u00e9viter les fissures et les d\u00e9collements dus \u00e0 la dilatation des mat\u00e9riaux.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque les choses tournent mal, c&#039;est souvent \u00e0 cause de probl\u00e8mes simples mais graves tels que\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mouvement articulaire excessif ou insuffisant pour le produit choisi<\/li>\n\n\n\n<li>Mauvaise compatibilit\u00e9 avec l&#039;un ou les deux substrats<\/li>\n\n\n\n<li>Le vieillissement, l&#039;exposition aux UV ou l&#039;humidit\u00e9 d\u00e9gradent le mastic au fil du temps.<\/li>\n\n\n\n<li>Pr\u00e9paration de surface insuffisante ou mat\u00e9riaux de support inad\u00e9quats sur le site<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En adaptant le mastic d&#039;\u00e9tanch\u00e9it\u00e9 \u00e0 la conception du joint et en veillant \u00e0 ce que la m\u00e9thode de pose sur site respecte le syst\u00e8me test\u00e9, bon nombre de ces points de d\u00e9faillance peuvent \u00eatre \u00e9vit\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Comprendre les classifications des incendies et les normes d&#039;essai<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En Europe, les mastics coupe-feu pour joints et travers\u00e9es sont \u00e9valu\u00e9s selon un ensemble de normes EN. Pour la plupart des joints lin\u00e9aires entre murs et planchers, la norme EN 1366-4 est essentielle. Pour les travers\u00e9es de services, comme les canalisations ou les faisceaux de c\u00e2bles traversant les murs ou les planchers, la norme EN 1366-3 est g\u00e9n\u00e9ralement applicable. La classification globale de r\u00e9sistance au feu est ensuite d\u00e9termin\u00e9e conform\u00e9ment \u00e0 la norme EN 13501-2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On voit souvent des \u00e9valuations telles que EI 60 ou EI 120. En termes simples\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>E signifie int\u00e9grit\u00e9, emp\u00eachant les flammes et les gaz chauds de passer \u00e0 travers<\/li>\n\n\n\n<li>Le \u00ab\u00a0I\u00a0\u00bb signifie isolation, limitant le transfert de chaleur vers la face non expos\u00e9e au feu.<\/li>\n\n\n\n<li>Le nombre correspond au temps, en minutes, pendant lequel le syst\u00e8me test\u00e9 a fonctionn\u00e9 dans la configuration de laboratoire.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Il est important de rappeler que la note s&#039;applique \u00e0 la configuration test\u00e9e dans son ensemble, et non pas seulement au tube de mastic. Cela inclut les supports, la largeur et la profondeur du joint, les mat\u00e9riaux de support et toutes les pi\u00e8ces suppl\u00e9mentaires utilis\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque vous lisez les d\u00e9clarations de produits et les rapports de test, recherchez\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Une description claire du joint test\u00e9 ou des d\u00e9tails de la p\u00e9n\u00e9tration<\/li>\n\n\n\n<li>La gamme des dimensions articulaires et des classes de mouvement couvertes<\/li>\n\n\n\n<li>La classification exacte du feu, y compris si le test a \u00e9t\u00e9 effectu\u00e9 d&#039;un seul c\u00f4t\u00e9 ou des deux c\u00f4t\u00e9s.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9sistance au feu ne suffit pas. Pour de nombreux projets, il est \u00e9galement important de v\u00e9rifier\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00c9tanch\u00e9it\u00e9 \u00e0 la fum\u00e9e des issues de secours et des portes<\/li>\n\n\n\n<li>Propri\u00e9t\u00e9s acoustiques des immeubles de bureaux, d&#039;h\u00f4tels ou r\u00e9sidentiels<\/li>\n\n\n\n<li>Capacit\u00e9 de mouvement pour g\u00e9rer les changements quotidiens et saisonniers<\/li>\n\n\n\n<li>R\u00e9sistance aux UV, \u00e0 l&#039;humidit\u00e9 et aux variations de temp\u00e9rature, notamment en fa\u00e7ade<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En mettant en balance ces diff\u00e9rents points, vous pouvez s\u00e9lectionner un produit qui garantit \u00e0 la fois la s\u00e9curit\u00e9 et la performance \u00e0 long terme du b\u00e2timent.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Choix des mastics ignifuges adapt\u00e9s aux types de joints critiques<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tous les joints ne sont pas identiques, et par cons\u00e9quent, les mastics coupe-feu ne doivent pas l&#039;\u00eatre non plus. Prenons l&#039;exemple des joints de dilatation et de mouvement aux jonctions de fa\u00e7ade ou aux bords de dalles. Ces joints doivent r\u00e9sister aux mouvements r\u00e9guliers dus aux variations thermiques et aux charges structurelles, ainsi qu&#039;\u00e0 la pluie, au vent et parfois m\u00eame au rayonnement solaire direct. Dans ce cas, il est g\u00e9n\u00e9ralement n\u00e9cessaire d&#039;utiliser un mastic pr\u00e9sentant une \u00e9lasticit\u00e9 \u00e9lev\u00e9e, une forte r\u00e9sistance aux UV et une r\u00e9sistance au feu test\u00e9e pour la composition sp\u00e9cifique du joint.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les p\u00e9n\u00e9trations de service, telles que\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tuyaux en plastique et en m\u00e9tal<\/li>\n\n\n\n<li>Chemins de c\u00e2bles, faisceaux de c\u00e2bles ou c\u00e2bles individuels<\/li>\n\n\n\n<li>Petits conduits ou gaines<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vous travaillez souvent avec diff\u00e9rents mat\u00e9riaux comme le b\u00e9ton, la brique, le m\u00e9tal et parfois le bois. Dans ce cas, le mastic peut faire partie d&#039;un syst\u00e8me plus vaste comprenant des manchons, des colliers, des bandes ou des panneaux coupe-feu. L&#039;objectif est de r\u00e9tablir la r\u00e9sistance au feu du mur ou du sol autour des r\u00e9seaux, le mastic colmatant les petits interstices et les points de mouvement du syst\u00e8me.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il existe \u00e9galement des zones \u00e0 haut risque o\u00f9 la strat\u00e9gie de lutte contre les incendies est particuli\u00e8rement d\u00e9licate, telles que\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Escaliers et couloirs de secours prot\u00e9g\u00e9s<\/li>\n\n\n\n<li>locaux techniques et colonnes montantes de service<\/li>\n\n\n\n<li>Cloisons et planchers compartiment\u00e9s qui s\u00e9parent diff\u00e9rentes utilisations ou occupations<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dans ces domaines, vous pourriez avoir besoin de classifications de r\u00e9sistance au feu plus \u00e9lev\u00e9es ou de produits ayant fait leurs preuves en mati\u00e8re de contr\u00f4le des fum\u00e9es et de durabilit\u00e9 dans des conditions exigeantes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Crit\u00e8res de s\u00e9lection pratiques et collaboration avec des experts<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lors du choix d&#039;un mastic ignifuge, il est utile de se poser quelques questions cl\u00e9s\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Quels sont les substrats de part et d&#039;autre du joint ou de la p\u00e9n\u00e9tration\u00a0?<\/li>\n\n\n\n<li>Quelle est la largeur et la profondeur de l&#039;articulation, et quelle amplitude de mouvement est attendue\u00a0?<\/li>\n\n\n\n<li>L&#039;articulation est-elle interne, externe ou partiellement expos\u00e9e aux intemp\u00e9ries et aux UV\u00a0?<\/li>\n\n\n\n<li>Quels acc\u00e8s pour la maintenance ou l&#039;inspection seront possibles \u00e0 l&#039;avenir\u00a0?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Chaque r\u00e9action chimique pr\u00e9sente des avantages diff\u00e9rents. De mani\u00e8re tr\u00e8s g\u00e9n\u00e9rale\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les mastics silicones offrent souvent une forte r\u00e9sistance aux UV et aux intemp\u00e9ries ainsi qu&#039;une bonne flexibilit\u00e9.<\/li>\n\n\n\n<li>Les mastics acryliques conviennent \u00e0 de nombreux interstices internes et sont souvent peignables.<\/li>\n\n\n\n<li>Les mastics polyur\u00e9thanes sont g\u00e9n\u00e9ralement r\u00e9sistants et flexibles, ce qui les rend utiles pour certains joints de sols et de fa\u00e7ades.<\/li>\n\n\n\n<li>Les technologies hybrides visent \u00e0 combiner flexibilit\u00e9, adh\u00e9rence et durabilit\u00e9 sur une large gamme de substrats.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Des formulations sp\u00e9cialis\u00e9es permettent d&#039;associer r\u00e9sistance au feu, flexibilit\u00e9, \u00e9tanch\u00e9it\u00e9 et autres propri\u00e9t\u00e9s au sein d&#039;un m\u00eame syst\u00e8me. C&#039;est pourquoi il est essentiel d&#039;\u00e9changer d\u00e8s le d\u00e9but avec les \u00e9quipes techniques. Chez VDB Adhesives, nous nous sp\u00e9cialisons dans les mastics, adh\u00e9sifs et mousses PU professionnels pour la construction et l&#039;industrie. Nous accompagnons donc r\u00e9guli\u00e8rement les \u00e9quipes de projet dans l&#039;analyse de leurs conceptions d&#039;assemblages et leur s\u00e9lection de solutions \u00e9prouv\u00e9es. Pour les fournisseurs de syst\u00e8mes, les options de marque blanche contribuent \u00e9galement \u00e0 une strat\u00e9gie de protection incendie coh\u00e9rente pour l&#039;ensemble de leur gamme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>De la sp\u00e9cification \u00e0 la r\u00e9ussite sur site avec les mastics r\u00e9sistants au feu<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00eame le meilleur mastic ignifuge ne sera pas conforme \u00e0 sa classification s&#039;il n&#039;est pas install\u00e9 selon les tests. Les \u00e9quipes sur site ont besoin de consignes claires concernant\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nettoyage et pr\u00e9paration des c\u00f4t\u00e9s du joint<\/li>\n\n\n\n<li>Choisir et installer les mat\u00e9riaux de support, tels que les barres de support ou la laine min\u00e9rale.<\/li>\n\n\n\n<li>Appliquer le mastic d&#039;\u00e9tanch\u00e9it\u00e9 \u00e0 la profondeur et au profil appropri\u00e9s<\/li>\n\n\n\n<li>Respecter les temps de s\u00e9chage avant d&#039;exposer les joints aux mouvements ou aux intemp\u00e9ries.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Une bonne documentation favorise la conformit\u00e9 tout au long du cycle de vie du b\u00e2timent. Il est important de conserver des enregistrements concernant\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Quels produits ont \u00e9t\u00e9 utilis\u00e9s, o\u00f9 et en quelles quantit\u00e9s<\/li>\n\n\n\n<li>Les preuves d&#039;essais pertinentes et les d\u00e9clarations de performance<\/li>\n\n\n\n<li>Notes d&#039;inspection et d\u00e9tails relatifs aux \u00e9carts convenus par rapport aux normes<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">aide les propri\u00e9taires d&#039;immeubles, les inspecteurs et les gestionnaires d&#039;installations \u00e0 comprendre comment est construite la protection passive contre l&#039;incendie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En tant que fabricant sp\u00e9cialis\u00e9 fort d&#039;une longue exp\u00e9rience sur les march\u00e9s europ\u00e9ens, notamment en Allemagne, nous savons combien le choix judicieux des produits et la conception pr\u00e9cise des joints contribuent \u00e0 rendre les b\u00e2timents complexes plus s\u00fbrs et plus fiables. En consid\u00e9rant les mastics coupe-feu comme un \u00e9l\u00e9ment cl\u00e9 de la strat\u00e9gie de s\u00e9curit\u00e9 incendie, et non comme une solution de derni\u00e8re minute pour combler les interstices, vous contribuez \u00e0 prot\u00e9ger les personnes, les biens et la continuit\u00e9 de l&#039;activit\u00e9 pour de nombreuses ann\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>D\u00e9marrez votre projet d\u00e8s aujourd&#039;hui<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous pr\u00e9voyez une nouvelle construction ou une mise \u00e0 niveau de votre syst\u00e8me de protection incendie existant, nous pouvons vous aider \u00e0 choisir la solution adapt\u00e9e. <a href=\"https:\/\/vdb-adhesives.com\/fr\/produits-detancheite-en-silicone\/\">mastics r\u00e9sistants au feu<\/a> Pour votre application sp\u00e9cifique, VDB Adhesives privil\u00e9gie la performance, la fiabilit\u00e9 et la conformit\u00e9, vous permettant ainsi de r\u00e9aliser vos travaux de finition et d&#039;installation en toute confiance. Partagez-nous les exigences de votre projet et nous vous recommanderons les produits adapt\u00e9s ainsi que les instructions d&#039;utilisation. Pour discuter des sp\u00e9cifications ou demander de l&#039;aide, il vous suffit de nous contacter. <a href=\"https:\/\/vdb-adhesives.com\/fr\/contact\/\">Contactez-nous<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Protecting People and Assets with the Right Fire Sealant Choosing the right fire-resistant sealants for construction joints is about more [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":1940,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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