{"id":3370,"date":"2024-08-30T12:29:25","date_gmt":"2024-08-30T12:29:25","guid":{"rendered":"https:\/\/ikoknowledgecenter.com\/docs\/uncategorized\/how-to-connect-a-bituminous-membrane-to-a-lead-roof-outlet\/"},"modified":"2025-06-26T12:05:23","modified_gmt":"2025-06-26T12:05:23","password":"","slug":"how-to-connect-a-bituminous-membrane-to-a-lead-roof-outlet","status":"publish","type":"docs","link":"https:\/\/ikoknowledgecenter.com\/en\/docs\/flat-roof-systems\/how-to-connect-a-bituminous-membrane-to-a-lead-roof-outlet\/","title":{"rendered":"How to connect a bituminous membrane to a lead roof outlet?"},"content":{"rendered":"\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th><mark class=\"has-inline-color has-white-color\" style=\"background-color: #cf2e2e;\">Base of the accessory<\/mark><\/th><th><mark class=\"has-inline-color has-white-color\" style=\"background-color: #cf2e2e;\">Use of a primer<\/mark><\/th><\/tr><\/thead><tbody><tr><td>Galvanized<\/td><td>Yes<\/td><\/tr><tr><td>Lacquered<\/td><td>No<\/td><\/tr><tr><td>Plastic<\/td><td>Consult the accessory manufacturer<\/td><\/tr><tr><td>Lead<\/td><td>\tYes, see directive below<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\"><strong>Tip!<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>To apply primer to accessories, use IKO pro Bitumen Primer SR Spray, available in a 500 ml aerosol can.<\/li>\n\n\n\n<li>Lead roof drains are often coated in grease and must be properly prepared:<\/li>\n<\/ul>\n\n<ol style=\"background:linear-gradient(90deg,rgb(238,238,238) 0%,rgba(169,183,194,0.3) 100%)\" class=\"wp-block-list has-background\">\n<li>Gently flame the lead flange of the drainage system\u2014not too intense, just enough for the grease to melt and run off the surface.<\/li>\n\n\n\n<li>Wipe the drain with a non-synthetic cloth (a synthetic one would melt).<\/li>\n\n\n\n<li>Scrub using a wire brush.<\/li>\n\n\n\n<li>Lightly flame again to eliminate any remaining residues.<\/li>\n\n\n\n<li>Apply a thin layer of IKO pro Bitumen Primer SR. <\/li>\n\n\n\n<li>If using an APP roofing membrane, check the adhesion more thoroughly by briefly flame-welding and then lifting the membrane to verify bonding.<\/li>\n\n\n\n<li>Finally, fully torch the underside of the roofing membrane and press it onto the lead flange.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Base of the accessory Use of a primer Galvanized Yes Lacquered No Plastic Consult the accessory manufacturer Lead Yes, see directive below Tip!<\/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":[63],"doc_tag":[905,844,887,865],"glossaries":[],"class_list":["post-3370","docs","type-docs","status-publish","hentry","doc_category-flat-roof-systems","doc_tag-adhesion-en","doc_tag-drainage","doc_tag-lead","doc_tag-pre-treatment"],"year_month":"2026-10","word_count":143,"total_views":"225","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":[{"term_name":"Flat roof 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