{"id":3756,"date":"2025-06-03T17:03:53","date_gmt":"2025-06-03T15:03:53","guid":{"rendered":"https:\/\/avant4degres.fr\/?page_id=3756"},"modified":"2026-08-13T13:25:55","modified_gmt":"2026-08-13T11:25:55","slug":"dou-viennent-les-fissures-en-facade","status":"publish","type":"page","link":"https:\/\/avant4degres.fr\/en\/dou-viennent-les-fissures-en-facade\/","title":{"rendered":"D&rsquo;o\u00f9 viennent les fissures en fa\u00e7ade ?"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"3756\" class=\"elementor elementor-3756\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f747c78 e-flex e-con-boxed e-con e-parent\" data-id=\"f747c78\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-39f62d3 elementor-widget elementor-widget-heading\" data-id=\"39f62d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">D'o\u00f9 viennent les fissures en fa\u00e7ade ?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b916dd8 elementor-widget elementor-widget-text-editor\" data-id=\"b916dd8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>12 mai 2025<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb78ebd elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"bb78ebd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Carrousel d\u2019images\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 sur 4\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2025\/06\/Fissures1-300x300.jpg\" alt=\"Fissures1\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 sur 4\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2025\/06\/Fissures2-300x300.jpg\" alt=\"Fissures2\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 sur 4\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2025\/06\/Fissures3-300x300.jpg\" alt=\"Fissures3\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 sur 4\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/avant4degres.fr\/wp-content\/uploads\/2025\/06\/Fissures4-300x300.jpg\" alt=\"Fissures4\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d667ed1 elementor-widget elementor-widget-text-editor\" data-id=\"d667ed1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La fissuration des fa\u00e7ades peut avoir de multiples causes et la d\u00e9termination de l\u2019origine des fissures n\u2019est pas ais\u00e9e. La question de leur r\u00e9paration est \u00e9galement sujette \u00e0 controverse. Lorsqu\u2019une structure se d\u00e9forme, les contraintes sur le mat\u00e9riau peuvent d\u00e9passer sa capacit\u00e9 de <strong>r\u00e9sistance<\/strong> et aboutir \u00e0 sa fissuration. Elle traduit une rupture du mat\u00e9riau, souvent en <strong>traction<\/strong>. Apr\u00e8s fissuration, la structure cherche un nouvel <strong>\u00e9quilibre<\/strong>, ce qui peut entra\u00eener d\u2019autres d\u00e9formations et donc l\u2019apparition de nouvelles fissures.<\/p>\n<p><span style=\"font-size: 16px;\">Avant tout, quelques d\u00e9finitions :<\/span><br>&#8211; <strong>fa\u00efen\u00e7age<\/strong>&nbsp;: fines fissures superficielles formant un maillage irr\u00e9gulier en surface<br>&#8211; <strong>microfissure<\/strong>&nbsp;: ouverture inf\u00e9rieure \u00e0 0,2 mm<br>&#8211; <strong>fissure<\/strong>&nbsp;: ouverture de 0,2 mm \u00e0 2 mm<br>&#8211; <strong>l\u00e9zarde<\/strong> et <strong>crevasse<\/strong>&nbsp;: ouvertures de plus de 2 mm<br>&#8211; <strong>fissure traversante<\/strong>&nbsp;: s\u2019\u00e9tend \u00e0 l\u2019\u00e9paisseur enti\u00e8re de la paroi, permet le passage l\u2019air<br>&#8211; <strong>fissure infiltrante<\/strong>&nbsp;: permet la p\u00e9n\u00e9tration de l\u2019eau dans le b\u00e2timent<\/p>\n<p>Comme il serait illusoire de vouloir dresser ici un tableau exhaustif des diff\u00e9rents types de fissures, nous \u00e9voquerons uniquement les 6 cat\u00e9gories principales de fissures pouvant affecter les murs en b\u00e9ton ou en ma\u00e7onnerie :<br>&#8211;<strong> fissures d\u2019inclinaison \u00e0 45\u00b0<\/strong> : ces fissures t\u00e9moignent d\u2019une <strong>d\u00e9formation de l\u2019assise du mur<\/strong> en un point pr\u00e9cis, par exemple le tassement du sol d\u2019assise des fondations.<br>&#8211;<strong> fissures horizontales ou verticales franches<\/strong> : ces fissures sont li\u00e9es \u00e0 une <strong>rupture en traction du mur<\/strong>, suite \u00e0 un tassement de terrain par exemple. Elles peuvent aussi t\u00e9moigner de la d\u00e9formation d\u2019une poutre porteuse ou de la dilatation d\u2019un acrot\u00e8re.<br>&#8211; <strong><strong>microfissures ou fissures horizontales ou verticales <\/strong><\/strong>: ces fissures proviennent du <strong>retrait ou de la dilatation excessive de la structure<\/strong> ou de ses mat\u00e9riaux. Elles apparaissent g\u00e9n\u00e9ralement \u00e0 la jonction entre deux \u00e9l\u00e9ments, par exemple entre un plancher et un mur.<br>&#8211;<strong><strong> fissures autour des ouvertures<\/strong><\/strong> : ces fissures peuvent \u00eatre la cons\u00e9quence de la <strong>d\u00e9formation de l\u2019ouverture<\/strong> suite \u00e0 un d\u00e9faut de fondations par exemple ou bien \u00eatre li\u00e9es au <strong>retrait des mat\u00e9riaux<\/strong> de la fa\u00e7ade ou du rev\u00eatement.<br>&#8211;<strong> microfissures ou fissures formant des hachures<\/strong> : \u00e9galement appel\u00e9es \u00ab <strong>fissures de cisaillement<\/strong>&nbsp;\u00bb, ces fissures sont la cons\u00e9quence d\u2019un mouvement dans le plan horizontal, \u00e0 la jonction entre un mur en ma\u00e7onnerie et un plancher, suite \u00e0 la dilatation ou au retrait de celui-ci.<br>&#8211;<strong> fissures de cha\u00eenage<\/strong> : lorsque les cha\u00eenages (armatures m\u00e9talliques dans les murs en ma\u00e7onnerie) horizontaux, verticaux et en rampants qui forment le squelette de la construction sont insuffisants, notamment pour r\u00e9sister aux efforts de <strong>traction<\/strong>, des fissures peuvent appara\u00eetre.<\/p>\n<p>La fissuration peut \u00e9galement ne concerner que le <strong>rev\u00eatement de la fa\u00e7ade&nbsp;<\/strong>: rev\u00eatement de peinture \u00e9pais (RPE), rev\u00eatement souple d\u2019imperm\u00e9abilit\u00e9 (RSI) ou enduit hydraulique. La fissuration du rev\u00eatement peut compromettre l\u2019<strong>\u00e9tanch\u00e9it\u00e9 de la fa\u00e7ade<\/strong>. Lorsqu\u2019elle ne r\u00e9sulte pas de la fissuration du support, la fissuration des enduits est g\u00e9n\u00e9ralement due \u00e0 un <strong>retrait excessif<\/strong>.<\/p>\n<p>En dehors des crevasses ou des l\u00e9zardes attestant un d\u00e9faut structurel majeur pouvant impliquer une <strong>reprise des fondations<\/strong>, la question de la r\u00e9paration des fissures est complexe. Avant d\u2019envisager de quelconques travaux, il convient de <strong>suivre l\u2019\u00e9volution<\/strong> de la fissure dans le temps, afin d\u2019\u00e9valuer son <strong>caract\u00e8re actif ou inactif<\/strong>. Dans la plupart des cas, les fissures restent actives du fait de leur caract\u00e8re traversant et de la dilatation des diff\u00e9rents tron\u00e7ons form\u00e9s par la fissuration, s\u2019ouvrant et se fermant en fonction de la temp\u00e9rature de la paroi. Des <strong>\u00e9pingles<\/strong> constitu\u00e9es de barres en acier peuvent \u00eatre utilis\u00e9es pour \u00ab&nbsp;coudre&nbsp;\u00bb les fissures. Un <strong>film de r\u00e9sine acrylique<\/strong> peut \u00eatre appliqu\u00e9. Une autre solution peut \u00eatre la pose d\u2019un <strong>bardage<\/strong> ou une <strong>isolation des murs par l\u2019ext\u00e9rieur<\/strong>.<\/p>\n<p>Si vous avez un doute sur l\u2019\u00e9volution d\u2019une fissure sur votre b\u00e2timent, faites appel \u00e0 un expert (bureau d\u2019\u00e9tudes structure, expert d\u2019assurance, architecte) qui d\u00e9terminera sa dangerosit\u00e9 et vous indiquera les solutions adapt\u00e9es.<\/p>\n<p>\ud83d\udcd6 Philipparie P., Thomas J.-L. (2023) &#8211; <em>La pathologie des fa\u00e7ades<\/em>, CSTB \u00c9ditions\/AQC, 132 p.<\/p>\n<p>\ud83d\udcd6 B\u00e9chade A.-F. (2021) &#8211; <em>La pathologie des fondations superficielles<\/em>, CSTB \u00c9ditions\/AQC, 532 p.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8388d84 elementor-align-center elementor-mobile-align-right elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"8388d84\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/avant4degres.fr\/en\/mes-offres-daccompagnement-dans-votre-parcours-de-renovation\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Je veux une visite-analyse<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>D&rsquo;o\u00f9 viennent les fissures en fa\u00e7ade ? 12 mai 2025 La fissuration des fa\u00e7ades peut avoir de multiples causes et la d\u00e9termination de l\u2019origine des fissures n\u2019est pas ais\u00e9e. La question de leur r\u00e9paration est \u00e9galement sujette \u00e0 controverse. Lorsqu\u2019une structure se d\u00e9forme, les contraintes sur le mat\u00e9riau peuvent d\u00e9passer sa capacit\u00e9 de r\u00e9sistance et [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ocean_front_end_style_editor":"no","ocean_post_layout":"full-width","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"off","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"on","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"off","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","footnotes":""},"class_list":["post-3756","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>D&#039;o\u00f9 viennent les fissures en fa\u00e7ade ? - Avant 4 degr\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:\/\/avant4degres.fr\/en\/dou-viennent-les-fissures-en-facade\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D&#039;o\u00f9 viennent les fissures en fa\u00e7ade ? - Avant 4 degr\u00e9s\" \/>\n<meta property=\"og:description\" content=\"D&rsquo;o\u00f9 viennent les fissures en fa\u00e7ade ? 12 mai 2025 La fissuration des fa\u00e7ades peut avoir de multiples causes et la d\u00e9termination de l\u2019origine des fissures n\u2019est pas ais\u00e9e. La question de leur r\u00e9paration est \u00e9galement sujette \u00e0 controverse. 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