{"id":3801,"date":"2025-06-03T17:36:19","date_gmt":"2025-06-03T15:36:19","guid":{"rendered":"https:\/\/avant4degres.fr\/?page_id=3801"},"modified":"2026-08-13T13:31:10","modified_gmt":"2026-08-13T11:31:10","slug":"humidite-3-les-champignons-lignivores","status":"publish","type":"page","link":"https:\/\/avant4degres.fr\/en\/humidite-3-les-champignons-lignivores\/","title":{"rendered":"Humidit\u00e9 #3\u00a0: les champignons lignivores"},"content":{"rendered":"
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Humidit\u00e9 #3 : les champignons lignivores<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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3 juin 2025<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Champignon\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le propri\u00e9taire de cette maison ancienne se serait bien pass\u00e9 de ce myst\u00e9rieux champignon qui a trouv\u00e9 un chemin \u00e0 travers son placo. Grosse panique\u00a0: est-ce que c\u2019est la m\u00e9rule\u00a0? Est-ce qu\u2019il va falloir noyer la maison dans un bain de fongicide\u00a0? Est-ce qu\u2019il va falloir remplacer tous les bois\u00a0?<\/p>

Rassurez-vous tout de suite, une analyse mycologique<\/strong> a r\u00e9v\u00e9l\u00e9 qu\u2019il ne s\u2019agit pas de la m\u00e9rule mais d\u2019une esp\u00e8ce du genre Coprinellus<\/em><\/strong>, bien moins redoutable. Cette esp\u00e8ce se d\u00e9veloppe sur la ma\u00e7onnerie, le bois (principalement les esp\u00e8ces feuillues riches en tanin) et les rev\u00eatements type placo ou papier peint en pr\u00e9sence d\u2019une humidit\u00e9 importante<\/strong>. Il peut \u00eatre associ\u00e9 \u00e0 d\u2019autres champignons. Si le rapport du mycologue le qualifie de \u00ab\u00a0sans grande cons\u00e9quence pour le b\u00e2ti\u00a0\u00bb, on part quand m\u00eame sur quelques petits travaux de r\u00e9novation, vu l\u2019\u00e9tat du placo\u2026<\/p>

Aucun traitement fongicide<\/strong> n\u2019est recommand\u00e9 pour se d\u00e9barrasser de ce malheureux Coprinellus<\/em>, qui ne survit g\u00e9n\u00e9ralement pas \u00e0 l\u2019ass\u00e8chement du milieu<\/strong>. Il \u00ab\u00a0suffit\u00a0\u00bb donc de retirer le rev\u00eatement int\u00e9rieur<\/strong> pour faciliter le s\u00e9chage du mur, d\u2019enlever l\u2019enduit ciment ext\u00e9rieur<\/strong> (et de le remplacer par un enduit \u00e0 la chaux) afin de permettre l\u2019\u00e9vacuation de l\u2019humidit\u00e9 vers l\u2019ext\u00e9rieur, et de mettre en place une ventilation<\/strong>.<\/p>

En cas de doute, faites r\u00e9aliser une analyse mycologique par un mycologue, c\u2019est le seul moyen d\u2019identifier de mani\u00e8re fiable l\u2019esp\u00e8ce du champignon et ainsi de prendre les mesures adapt\u00e9es.<\/p>

\ud83d\udcd6 CTBA (2002) \u2013\u00a0Le traitement des bois<\/em>, \u00c9ditions Eyrolles, 140 p.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tJe 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":"

Humidit\u00e9 #3 : les champignons lignivores 3 juin 2025 Le propri\u00e9taire de cette maison ancienne se serait bien pass\u00e9 de ce myst\u00e9rieux champignon qui a trouv\u00e9 un chemin \u00e0 travers son placo. Grosse panique\u00a0: est-ce que c\u2019est la m\u00e9rule\u00a0? Est-ce qu\u2019il va falloir noyer la maison dans un bain de fongicide\u00a0? Est-ce qu\u2019il va falloir […]<\/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-3801","page","type-page","status-publish","hentry","entry"],"yoast_head":"\nHumidit\u00e9 #3\u00a0: les champignons lignivores - 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\/humidite-3-les-champignons-lignivores\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Humidit\u00e9 #3\u00a0: les champignons lignivores - Avant 4 degr\u00e9s\" \/>\n<meta property=\"og:description\" content=\"Humidit\u00e9 #3 : les champignons lignivores 3 juin 2025 Le propri\u00e9taire de cette maison ancienne se serait bien pass\u00e9 de ce myst\u00e9rieux champignon qui a trouv\u00e9 un chemin \u00e0 travers son placo. 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