{"id":8744,"date":"2026-01-28T12:41:40","date_gmt":"2026-01-28T11:41:40","guid":{"rendered":"https:\/\/impera.cat\/?p=8744"},"modified":"2026-01-29T17:00:00","modified_gmt":"2026-01-29T16:00:00","slug":"rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support","status":"publish","type":"post","link":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/","title":{"rendered":"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support"},"content":{"rendered":"\n<p>The rehabilitation of old roofs is one of the most delicate interventions in the world of construction and building rehabilitation. In <strong>Catalonia and the Balearic Islands<\/strong> , a large part of the real estate stock is over 30 or 40 years old, with waterproofing systems that have already reached\u2014or exceeded\u2014their useful life.<\/p>\n\n<p>In these cases, applying a standard solution can be a serious mistake. Each roof has different pathologies, materials and condition of the support, and therefore requires <strong>tailor-made waterproofing<\/strong> , based on a previous technical diagnosis.<\/p>\n\n<p><\/p>\n\n<p>In this article we explain <strong>how to properly tackle the rehabilitation of old roofs<\/strong> , what strategies exist depending on the condition of the support and why professional intervention makes the difference between a lasting solution and a temporary repair.<\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">Why do old roofs fail?<\/h4>\n\n<p><\/p>\n\n<p>Old roofs tend to present problems due to a combination of factors:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Natural aging of materials<\/li>\n\n\n\n<li>Continuous exposure to sun and rain<\/li>\n\n\n\n<li>Structural movements of the building<\/li>\n\n\n\n<li>One-time repairs accumulated over time<\/li>\n\n\n\n<li>Insufficient or non-existent slopes<\/li>\n\n\n\n<li>Regular blockage of drains<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>All this causes cracks, loss of elasticity of the materials and, finally, <strong>water leaks<\/strong> .<\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">The importance of the condition of the support before waterproofing<\/h4>\n\n<p><\/p>\n\n<p>One of the most common mistakes in roof rehabilitation is <strong>not correctly assessing the condition of the support<\/strong> before intervening. Waterproofing on a degraded, damp or poorly prepared substrate guarantees the failure of the system in the short or medium term.<\/p>\n\n<p>At <strong>IMPERA<\/strong> we always start any project with a prior technical inspection that analyzes:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Type of support (concrete, ceramic roof, existing pavement, etc.)<\/li>\n\n\n\n<li>State of cohesion and cracking<\/li>\n\n\n\n<li>Presence of residual moisture<\/li>\n\n\n\n<li>Slopes and water accumulation points<\/li>\n\n\n\n<li>Status of singular points (drainages, junctions, vertical walls)<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>Only with this information can an <strong>appropriate waterproofing strategy<\/strong> be defined.<\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">Common types of old roofs<\/h4>\n\n<p><\/p>\n\n<p><strong>Roofs with aged asphalt sheeting<\/strong><\/p>\n\n<p><\/p>\n\n<p>Very common in buildings built between the 70s and 90s. They often present cracks, detachments and total loss of tightness.<\/p>\n\n<p><\/p>\n\n<p><strong>Rooftops with ceramic flooring<\/strong><\/p>\n\n<p><\/p>\n\n<p>Where water penetrates through degraded joints or by capillarity under the pavement.<\/p>\n\n<p><\/p>\n\n<p><strong>Flat roofs without defined waterproofing<\/strong><\/p>\n\n<p><\/p>\n\n<p>Especially in old industrial buildings.<\/p>\n\n<p><\/p>\n\n<p><strong>Roofs with multiple partial repairs<\/strong><\/p>\n\n<p><\/p>\n\n<p>With different materials incompatible with each other.<\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">Waterproofing strategies according to the condition of the support<\/h4>\n\n<p><\/p>\n\n<p><strong>Structurally correct support but with outdated waterproofing<\/strong><\/p>\n\n<p><\/p>\n\n<p>In these cases, you can opt for:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Removal of the old system<\/li>\n\n\n\n<li>Mechanical preparation of the support<\/li>\n\n\n\n<li>Application of a new continuous waterproofing system<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><strong>Cracked or degraded support<\/strong><\/p>\n\n<p><\/p>\n\n<p>Prior intervention is required:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Structural repair<\/li>\n\n\n\n<li>Regularization of support<\/li>\n\n\n\n<li>Reinforcement of critical points before waterproofing<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><strong>Support with insufficient slope<\/strong><\/p>\n\n<p><\/p>\n\n<p>Must be corrected before waterproofing:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Slope formation<\/li>\n\n\n\n<li>Drainage improvement<\/li>\n\n\n\n<li>Relocation or expansion of drains<\/li>\n<\/ul>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">Most used waterproofing systems in rehabilitation<\/h4>\n\n<p><\/p>\n\n<p>The selection of the system depends on the support, the use of the roof and the climate.<\/p>\n\n<p><\/p>\n\n<p><strong>Liquid membranes<\/strong><\/p>\n\n<p><\/p>\n\n<p>Ideal for:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Renovations without demolition<\/li>\n\n\n\n<li>Decks with many unique points<\/li>\n\n\n\n<li>Fast and clean interventions<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><strong>Asphalt sheets<\/strong><\/p>\n\n<p><\/p>\n\n<p>Suitable for:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Comprehensive rehabilitations<\/li>\n\n\n\n<li>Roofs with traffic<\/li>\n\n\n\n<li>Highly durable multilayer systems<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><strong>Combined systems<\/strong><\/p>\n\n<p><\/p>\n\n<p>When it is necessary to reinforce specific areas or adapt to different pathologies within the same roof.<\/p>\n\n<p>As we explain in our article on what differentiates <strong><a href=\"https:\/\/impera.cat\/en\/what-is-professional-waterproofing-and-why-is-it-not-the-same-as-a-one-time-repair\/\">professional waterproofing from a one-off repair<\/a><\/strong> , the key is to act on the origin of the problem and not just on the symptom.<\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">Common case in Catalonia and the Balearic Islands: buildings over 40 years old<\/h4>\n\n<p><\/p>\n\n<p>In many renovations in <strong>Catalonia and the Balearic Islands<\/strong> , we find roofs that have never been properly waterproofed, or that accumulate successive layers without technical criteria.<\/p>\n\n<p>In these cases, the solution is:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Unify criteria<\/li>\n\n\n\n<li>Simplify the system<\/li>\n\n\n\n<li>Guarantee compatibility between materials<\/li>\n\n\n\n<li>Execute with professional quality control<\/li>\n<\/ul>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\">Why trust a specialized company?<\/h4>\n\n<p><\/p>\n\n<p>The rehabilitation of old roofs does not allow for improvisation. A bad decision can involve:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Repeat the work in a few years<\/li>\n\n\n\n<li>Structural damage<\/li>\n\n\n\n<li>Conflicts in neighborhood communities<\/li>\n\n\n\n<li>Significant cost overruns<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>At <strong>IMPERA<\/strong> we work with technical criteria, approved systems and specialized execution <strong>throughout Catalonia and the Balearic Islands<\/strong> .<\/p>\n\n<p>You can consult all our waterproofing services at <a href=\"https:\/\/impera.cat\/en\/\">impera.cat.<\/a><\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<p>The rehabilitation of old roofs requires a global vision, a careful diagnosis and a <strong>tailor-made waterproofing strategy<\/strong> . There is no universal solution, but there is a professional methodology that guarantees durability, safety and tightness.<\/p>\n\n<p>Investing in good rehabilitation means protecting the building for decades.<\/p>\n\n<p>If you need technical advice, you can <a href=\"https:\/\/impera.cat\/en\/contact\/\">contact us<\/a> .<\/p>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The rehabilitation of old roofs is one of the most delicate interventions in the world of construction and building rehabilitation. In Catalonia and the Balearic Islands , a large part of the real estate stock is over 30 or 40 years old, with waterproofing systems that have already reached\u2014or exceeded\u2014their useful life. In these cases, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8758,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80],"tags":[241,171,320,172,173,345,343,342,344,165],"class_list":["post-8744","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-balearic-islands","tag-buildings","tag-catalonia","tag-humidity","tag-leaks","tag-neighborhood-communities","tag-old-roofs","tag-roof-renovation","tag-rooftops","tag-waterproofing"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions<\/title>\n<meta name=\"description\" content=\"Discover how to rehabilitate old roofs with waterproofing systems adapted to the condition of the support. Service in Catalonia and the Balearic Islands.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions\" \/>\n<meta property=\"og:description\" content=\"Discover how to rehabilitate old roofs with waterproofing systems adapted to the condition of the support. Service in Catalonia and the Balearic Islands.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/\" \/>\n<meta property=\"og:site_name\" content=\"IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=100063922969722\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-28T11:41:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-29T16:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/impera.cat\/wp-content\/uploads\/2026\/01\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1230\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@impera_cat\" \/>\n<meta name=\"twitter:site\" content=\"@impera_cat\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#\\\/schema\\\/person\\\/3f34e1a589f1683902b3bfbd713cd84b\"},\"headline\":\"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support\",\"datePublished\":\"2026-01-28T11:41:40+00:00\",\"dateModified\":\"2026-01-29T16:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/\"},\"wordCount\":727,\"publisher\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/impera.cat\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png\",\"keywords\":[\"Balearic Islands\",\"buildings\",\"Catalonia\",\"humidity\",\"leaks\",\"neighborhood communities\",\"old roofs\",\"roof renovation\",\"rooftops\",\"waterproofing\"],\"articleSection\":[\"Tips\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/\",\"url\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/\",\"name\":\"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/impera.cat\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png\",\"datePublished\":\"2026-01-28T11:41:40+00:00\",\"dateModified\":\"2026-01-29T16:00:00+00:00\",\"description\":\"Discover how to rehabilitate old roofs with waterproofing systems adapted to the condition of the support. Service in Catalonia and the Balearic Islands.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#primaryimage\",\"url\":\"https:\\\/\\\/impera.cat\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png\",\"contentUrl\":\"https:\\\/\\\/impera.cat\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png\",\"width\":1230,\"height\":500},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inici\",\"item\":\"https:\\\/\\\/impera.cat\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/impera.cat\\\/en\\\/\",\"name\":\"IMPERA - Impermeabilitzacions i a\u00efllaments d'obra nova, Rehabilitacions\",\"description\":\"Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions\",\"publisher\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/impera.cat\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#organization\",\"name\":\"IMPERA - Impermeabilitzacions i a\u00efllaments d'obra nova, Rehabilitacions\",\"url\":\"https:\\\/\\\/impera.cat\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/impera.cat\\\/wp-content\\\/uploads\\\/2021\\\/10\\\/cropped-IMPERA-LOGO1-260x108-1.png\",\"contentUrl\":\"https:\\\/\\\/impera.cat\\\/wp-content\\\/uploads\\\/2021\\\/10\\\/cropped-IMPERA-LOGO1-260x108-1.png\",\"width\":260,\"height\":108,\"caption\":\"IMPERA - Impermeabilitzacions i a\u00efllaments d'obra nova, Rehabilitacions\"},\"image\":{\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=100063922969722\",\"https:\\\/\\\/x.com\\\/impera_cat\",\"https:\\\/\\\/www.instagram.com\\\/impera.cat\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/impera-cat\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/impera.cat\\\/en\\\/#\\\/schema\\\/person\\\/3f34e1a589f1683902b3bfbd713cd84b\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/42fc1bebba9f18ec852c4f1b9efe7a1af03cb0c7fb6885fe31f73fd7450e22f8?s=80&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/42fc1bebba9f18ec852c4f1b9efe7a1af03cb0c7fb6885fe31f73fd7450e22f8?s=80&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/42fc1bebba9f18ec852c4f1b9efe7a1af03cb0c7fb6885fe31f73fd7450e22f8?s=80&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\\\/\\\/impera.cat\"],\"url\":\"https:\\\/\\\/impera.cat\\\/en\\\/author\\\/adminlynkoo\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions","description":"Discover how to rehabilitate old roofs with waterproofing systems adapted to the condition of the support. Service in Catalonia and the Balearic Islands.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/","og_locale":"en_US","og_type":"article","og_title":"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions","og_description":"Discover how to rehabilitate old roofs with waterproofing systems adapted to the condition of the support. Service in Catalonia and the Balearic Islands.","og_url":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/","og_site_name":"IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=100063922969722","article_published_time":"2026-01-28T11:41:40+00:00","article_modified_time":"2026-01-29T16:00:00+00:00","og_image":[{"width":1230,"height":500,"url":"https:\/\/impera.cat\/wp-content\/uploads\/2026\/01\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png","type":"image\/png"}],"author":"admin","twitter_card":"summary_large_image","twitter_creator":"@impera_cat","twitter_site":"@impera_cat","twitter_misc":{"Written by":"admin","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#article","isPartOf":{"@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/"},"author":{"name":"admin","@id":"https:\/\/impera.cat\/en\/#\/schema\/person\/3f34e1a589f1683902b3bfbd713cd84b"},"headline":"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support","datePublished":"2026-01-28T11:41:40+00:00","dateModified":"2026-01-29T16:00:00+00:00","mainEntityOfPage":{"@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/"},"wordCount":727,"publisher":{"@id":"https:\/\/impera.cat\/en\/#organization"},"image":{"@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#primaryimage"},"thumbnailUrl":"https:\/\/impera.cat\/wp-content\/uploads\/2026\/01\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png","keywords":["Balearic Islands","buildings","Catalonia","humidity","leaks","neighborhood communities","old roofs","roof renovation","rooftops","waterproofing"],"articleSection":["Tips"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/","url":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/","name":"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions","isPartOf":{"@id":"https:\/\/impera.cat\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#primaryimage"},"image":{"@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#primaryimage"},"thumbnailUrl":"https:\/\/impera.cat\/wp-content\/uploads\/2026\/01\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png","datePublished":"2026-01-28T11:41:40+00:00","dateModified":"2026-01-29T16:00:00+00:00","description":"Discover how to rehabilitate old roofs with waterproofing systems adapted to the condition of the support. Service in Catalonia and the Balearic Islands.","breadcrumb":{"@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#primaryimage","url":"https:\/\/impera.cat\/wp-content\/uploads\/2026\/01\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png","contentUrl":"https:\/\/impera.cat\/wp-content\/uploads\/2026\/01\/rehabilitacio-de-cobertes-antigues-estrategies-dimpermeabilitzacio-a-mida-segons-estat-del-suport0.png","width":1230,"height":500},{"@type":"BreadcrumbList","@id":"https:\/\/impera.cat\/en\/rehabilitation-of-old-roofs-tailor-made-waterproofing-strategies-according-to-the-condition-of-the-support\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Inici","item":"https:\/\/impera.cat\/en\/"},{"@type":"ListItem","position":2,"name":"Rehabilitation of old roofs: tailor-made waterproofing strategies according to the condition of the support"}]},{"@type":"WebSite","@id":"https:\/\/impera.cat\/en\/#website","url":"https:\/\/impera.cat\/en\/","name":"IMPERA - Impermeabilitzacions i a\u00efllaments d'obra nova, Rehabilitacions","description":"Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions","publisher":{"@id":"https:\/\/impera.cat\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/impera.cat\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/impera.cat\/en\/#organization","name":"IMPERA - Impermeabilitzacions i a\u00efllaments d'obra nova, Rehabilitacions","url":"https:\/\/impera.cat\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/impera.cat\/en\/#\/schema\/logo\/image\/","url":"https:\/\/impera.cat\/wp-content\/uploads\/2021\/10\/cropped-IMPERA-LOGO1-260x108-1.png","contentUrl":"https:\/\/impera.cat\/wp-content\/uploads\/2021\/10\/cropped-IMPERA-LOGO1-260x108-1.png","width":260,"height":108,"caption":"IMPERA - Impermeabilitzacions i a\u00efllaments d'obra nova, Rehabilitacions"},"image":{"@id":"https:\/\/impera.cat\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=100063922969722","https:\/\/x.com\/impera_cat","https:\/\/www.instagram.com\/impera.cat\/","https:\/\/www.linkedin.com\/company\/impera-cat\/"]},{"@type":"Person","@id":"https:\/\/impera.cat\/en\/#\/schema\/person\/3f34e1a589f1683902b3bfbd713cd84b","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/42fc1bebba9f18ec852c4f1b9efe7a1af03cb0c7fb6885fe31f73fd7450e22f8?s=80&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/42fc1bebba9f18ec852c4f1b9efe7a1af03cb0c7fb6885fe31f73fd7450e22f8?s=80&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/42fc1bebba9f18ec852c4f1b9efe7a1af03cb0c7fb6885fe31f73fd7450e22f8?s=80&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/impera.cat"],"url":"https:\/\/impera.cat\/en\/author\/adminlynkoo\/"}]}},"_links":{"self":[{"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/posts\/8744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/comments?post=8744"}],"version-history":[{"count":1,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/posts\/8744\/revisions"}],"predecessor-version":[{"id":8747,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/posts\/8744\/revisions\/8747"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/media\/8758"}],"wp:attachment":[{"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/media?parent=8744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/categories?post=8744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/impera.cat\/en\/wp-json\/wp\/v2\/tags?post=8744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}