{"id":1596,"date":"2024-09-02T10:30:54","date_gmt":"2024-09-02T10:30:54","guid":{"rendered":"https:\/\/ikoknowledgecenter.com\/docs\/uncategorized\/quels-sont-les-points-dattention-lors-de-lapplication-dune-couche-superieure-bitumineuse\/"},"modified":"2025-12-10T13:26:00","modified_gmt":"2025-12-10T13:26:00","password":"","slug":"quels-sont-les-points-dattention-lors-de-lapplication-dune-couche-superieure-bitumineuse","status":"publish","type":"docs","link":"https:\/\/ikoknowledgecenter.com\/fr\/docs\/systeme-de-toiture-plat\/quels-sont-les-points-dattention-lors-de-lapplication-dune-couche-superieure-bitumineuse\/","title":{"rendered":"Comment dois-je appliquer une couche de finition bitumineuse sur une sous-couche bitumineuse?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Pour une \u00e9tanch\u00e9it\u00e9 bicouche de qualit\u00e9, la couche de finition est de pr\u00e9f\u00e9rence <strong>appliqu\u00e9e par soudage<\/strong> en pleine surface. Ainsi, la couche de finition et la sous-couche formeront une unit\u00e9 solide, garantissant une excellente \u00e9tanch\u00e9it\u00e9 et une r\u00e9sistance au vent.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Directives g\u00e9n\u00e9rales :<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Le support doit \u00eatre uniforme, sec, propre, exempt de graisse et de poussi\u00e8re.<\/li>\n\n\n\n<li>Pour obtenir une bonne soudure au niveau des joints, un bourrelet de bitume de \u2265 5 mm doit appara\u00eetre en bordure.<\/li>\n\n\n\n<li>Retirez les emballages de la rouleau avant l&rsquo;installation.<\/li>\n\n\n\n<li>Posez toujours la couche de finition dans la m\u00eame direction que la sous-couche.<\/li>\n\n\n\n<li>\u00c9vitez les joints en T en coupant l&rsquo;angle des joints transversaux.<\/li>\n<\/ul>\n\n<ul class=\"wp-block-list\">\n<li>Placez la couche de finition en quinconce, avec une distance minimale de 2 m\u00e8tres entre les joints transversaux.<\/li>\n\n\n\n<li>\u00c9vitez les contre-joints aux chevauchements longitudinaux et transversaux pour limiter les risques de stagnation de l&rsquo;eau.<\/li>\n\n\n\n<li>Positionnez la couche de finition d\u00e9cal\u00e9e par rapport \u00e0 la sous-couche, aussi bien dans le sens longitudinal que transversal. Id\u00e9alement, le chevauchement de la couche de finition doit \u00eatre d\u00e9cal\u00e9 d\u2019une demi-largeur de rouleau par rapport \u00e0 celui de la sous-couche. Cela garantit une meilleure \u00e9tanch\u00e9it\u00e9.<\/li>\n<\/ul>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"535\" height=\"340\" src=\"https:\/\/ikoknowledgecenter.com\/wp-content\/uploads\/2024\/09\/aanbrengen-bitumineuze-toplaag-1.png\" alt=\"\" class=\"wp-image-735\" srcset=\"https:\/\/ikoknowledgecenter.com\/wp-content\/uploads\/2024\/09\/aanbrengen-bitumineuze-toplaag-1.png 535w, https:\/\/ikoknowledgecenter.com\/wp-content\/uploads\/2024\/09\/aanbrengen-bitumineuze-toplaag-1-300x191.png 300w, https:\/\/ikoknowledgecenter.com\/wp-content\/uploads\/2024\/09\/aanbrengen-bitumineuze-toplaag-1-360x229.png 360w\" sizes=\"(max-width: 535px) 100vw, 535px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<ol class=\"wp-block-list\">\n<li>Largeur du rouleau d&rsquo;\u00e9tanch\u00e9it\u00e9<\/li>\n\n\n\n<li>Positionnement d\u00e9cal\u00e9 de la couche de finition par rapport \u00e0 la sous-couche (demi-largeur)<\/li>\n\n\n\n<li>Distance minimale entre les joints transversaux<\/li>\n\n\n\n<li>Biseautage des angles pour \u00e9viter la capillarit\u00e9<\/li>\n\n\n\n<li>Orientation conseill\u00e9e pour le drainage selon ce sch\u00e9ma de pose (sans contre-joint dans le chevauchement)<\/li>\n<\/ol>\n<\/div>\n<\/div>\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n<p class=\"wp-block-paragraph\">Pour plus d&rsquo;informations, consultez notre guide \u00ab<a href=\"https:\/\/eu.iko.com\/fr\/documentation\/systemes-de-toitures-plates\/comment-choisir-la-couche-de-finition-bitumineuse\/\" target=\"_blank\" rel=\"noopener\">Comment choisir la couche de finition bitumineuse<\/a>\u00bb disponible sur notre site IKO.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour une \u00e9tanch\u00e9it\u00e9 bicouche de qualit\u00e9, la couche de finition est de pr\u00e9f\u00e9rence appliqu\u00e9e par soudage en pleine surface. Ainsi, la couche de finition et la sous-couche formeront une unit\u00e9 solide, garantissant une excellente \u00e9tanch\u00e9it\u00e9 et une r\u00e9sistance au vent. Directives g\u00e9n\u00e9rales : Pour plus d&rsquo;informations, consultez notre guide \u00abComment choisir la couche de finition [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[78],"glossaries":[],"doc_tag":[967,637,968,622,646,605],"class_list":["post-1596","docs","type-docs","status-publish","hentry","doc_category-systeme-de-toiture-plat","doc_tag-bitume","doc_tag-couche-finition","doc_tag-etancheite-fr","doc_tag-roofing-fr","doc_tag-soudage-flamme","doc_tag-toiture-plate"],"year_month":"2026-06","word_count":268,"total_views":"313","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Luna Degraeve","author_nicename":"luna","author_url":"https:\/\/ikoknowledgecenter.com\/fr\/author\/luna\/"},"doc_category_info":[{"term_name":"Syst\u00e8me de toiture plat","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-category\/systeme-de-toiture-plat\/"}],"doc_tag_info":[{"term_name":"bitume","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-tag\/bitume\/"},{"term_name":"couche de finition","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-tag\/couche-finition\/"},{"term_name":"\u00e9tanch\u00e9it\u00e9","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-tag\/etancheite-fr\/"},{"term_name":"roofing","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-tag\/roofing-fr\/"},{"term_name":"soudage \u00e0 la flamme","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-tag\/soudage-flamme\/"},{"term_name":"Toiture plate","term_url":"https:\/\/ikoknowledgecenter.com\/fr\/docs-tag\/toiture-plate\/"}],"knowledge_base_info":[],"knowledge_base_slug":[],"_links":{"self":[{"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/docs\/1596","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/comments?post=1596"}],"version-history":[{"count":5,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/docs\/1596\/revisions"}],"predecessor-version":[{"id":3850,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/docs\/1596\/revisions\/3850"}],"wp:attachment":[{"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/media?parent=1596"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/doc_category?post=1596"},{"taxonomy":"glossaries","embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/glossaries?post=1596"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/fr\/wp-json\/wp\/v2\/doc_tag?post=1596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}