{"id":3012,"date":"2025-04-22T14:47:30","date_gmt":"2025-04-22T14:47:30","guid":{"rendered":"https:\/\/ikoknowledgecenter.com\/docs\/uncategorized\/which-iko-bituminous-roofing-membrane-should-i-use-as-a-vapor-barrier-for-my-project\/"},"modified":"2025-10-14T09:07:12","modified_gmt":"2025-10-14T09:07:12","password":"","slug":"which-iko-bituminous-roofing-membrane-should-i-use-as-a-vapor-barrier-for-my-project","status":"publish","type":"docs","link":"https:\/\/ikoknowledgecenter.com\/en\/docs\/uncategorized\/which-iko-bituminous-roofing-membrane-should-i-use-as-a-vapor-barrier-for-my-project\/","title":{"rendered":"Which IKO roofing membrane should I choose as a vapor barrier for my project based on the indoor climate class?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">According to TV280, a vapor barrier is classified into four classes based on the indoor climate of the building (I-IV). Specific vapor barriers are recommended depending on the indoor climate class: E1 \u2013 E4. See Table 13 p.62 TV280.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>bitumen<\/strong> vapor barrier can be used for indoor climate classes I\u2013III.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A bitumen vapor barrier with ALU insert can be used for indoor climate classes I\u2013IV.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\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:100%\">\n<figure class=\"wp-block-table is-style-regular has-medium-font-size\"><table><thead><tr><th>Climate Class<\/th><th>Substrate<\/th><th>Recommended fastening method<\/th><th>IKO vapor barrier<\/th><\/tr><\/thead><tbody><tr><td>I, II, III (E3)<\/td><td>Concrete<\/td><td>Flame welding<br data-start=\"224\" data-end=\"227\">Mechanical<br data-start=\"237\" data-end=\"240\">Loose ballast with IKO base<br><br>Self-adhesive<br data-start=\"284\" data-end=\"287\">Mechanical<br data-start=\"297\" data-end=\"300\">Loose ballast<\/td><td>IKO base V3 &#8211; IKO base Turbo<br>IKO base P3<br>IKO base V3<br><br>IKO base Stick T\/SA<br>IKO base P3<br>IKO base P3<br><br>IKO base Stick T\/SA<br>IKO base P3<br>IKO base V3<\/td><\/tr><tr><td>IV (E4)<\/td><td>Concrete<\/td><td>Flame welding<br>Loose ballast<\/td><td>IKO shield ALU3 T\/F -IKO shield ALU4 T\/F <br>IKO shield ALU3 T\/F -IKO shield ALU4 T\/F<br><br>IKOshield ALU\/SA-IKO shield PLUS ALU\/SA<br>IKO shield PRO ALU\/SA<br>IKO shield ALU3 T\/F -IKO shield ALU4 T\/F <br><br>IKO shield ALU\/SA-IKOshield PLUS ALU\/SA <br>IKO shield PRO ALU\/SA <br>IKO shield ALU3 T\/F &#8211; IKO shield ALU4 T\/F <\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>According to TV280, a vapor barrier is classified into four classes based on the indoor climate of the building (I-IV). Specific vapor barriers are recommended depending on the indoor climate class: E1 \u2013 E4. See Table 13 p.62 TV280. A bitumen vapor barrier can be used for indoor climate classes I\u2013III. A bitumen vapor barrier [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"doc_category":[],"doc_tag":[],"glossaries":[],"class_list":["post-3012","docs","type-docs","status-publish","hentry"],"year_month":"2026-10","word_count":179,"total_views":"241","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Luna Degraeve","author_nicename":"luna","author_url":"https:\/\/ikoknowledgecenter.com\/en\/author\/luna\/"},"doc_category_info":[],"doc_tag_info":[],"knowledge_base_info":[],"knowledge_base_slug":[],"_links":{"self":[{"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/docs\/3012","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/comments?post=3012"}],"version-history":[{"count":4,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/docs\/3012\/revisions"}],"predecessor-version":[{"id":3679,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/docs\/3012\/revisions\/3679"}],"wp:attachment":[{"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/media?parent=3012"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/doc_category?post=3012"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/doc_tag?post=3012"},{"taxonomy":"glossaries","embeddable":true,"href":"https:\/\/ikoknowledgecenter.com\/en\/wp-json\/wp\/v2\/glossaries?post=3012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}