{"id":8946,"date":"2026-04-09T14:14:34","date_gmt":"2026-04-09T12:14:34","guid":{"rendered":"https:\/\/impera.cat\/waterproofing-and-energy-efficiency-how-it-affects-your-bill\/"},"modified":"2026-04-09T14:19:40","modified_gmt":"2026-04-09T12:19:40","slug":"waterproofing-and-energy-efficiency-how-it-affects-your-bill","status":"publish","type":"post","link":"https:\/\/impera.cat\/en\/waterproofing-and-energy-efficiency-how-it-affects-your-bill\/","title":{"rendered":"Waterproofing and energy efficiency: how it affects your bill"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\"><strong>The roof: a key element in energy efficiency<\/strong><\/h4>\n\n<p><\/p>\n\n<p>The roof is one of the most exposed parts of any building. It is constantly subjected to:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>direct solar radiation<\/li>\n\n\n\n<li>temperature changes<\/li>\n\n\n\n<li>rain and humidity<\/li>\n\n\n\n<li>wind and climatic agents<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>When waterproofing fails, these factors not only affect the tightness, but also the insulation capacity of the building.<\/p>\n\n<p>A <strong>poorly waterproofed roof<\/strong> can cause significant thermal losses both in winter and in summer.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>How humidity affects energy performance<\/strong><\/h4>\n\n<p><\/p>\n\n<p>One of the most determining factors is the presence of moisture in the materials.<\/p>\n\n<p>When a construction system is wet:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>its insulating capacity decreases<\/li>\n\n\n\n<li>increases thermal transmission<\/li>\n\n\n\n<li>heat losses occur<\/li>\n\n\n\n<li>more energy demand is generated<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>In other words, a wet surface \u201ctransmits\u201d the outside temperature better, making the interior more difficult to air-condition.<\/p>\n\n<p>This translates into an increase in heating consumption in winter and air conditioning in summer.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>Invisible energy losses<\/strong><\/h4>\n\n<p><\/p>\n\n<p>Many times, efficiency problems are not visible to the naked eye.<\/p>\n\n<p><strong>Deteriorated waterproofing<\/strong> can cause:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>air infiltrations<\/li>\n\n\n\n<li>areas with thermal bridges<\/li>\n\n\n\n<li>insulation degradation<\/li>\n\n\n\n<li>indoor temperature variations<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>These situations mean that air conditioning systems have to work harder to maintain a stable temperature.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>Benefits of proper waterproofing<\/strong><\/h4>\n\n<p><\/p>\n\n<p>Good <strong>professional waterproofing<\/strong> provides multiple advantages:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>improvement of indoor thermal comfort<\/li>\n\n\n\n<li>reduction of energy losses<\/li>\n\n\n\n<li>temperature stability<\/li>\n\n\n\n<li>lower energy consumption<\/li>\n\n\n\n<li>protection of existing insulation<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>In addition, it contributes to extending the useful life of the building and avoiding more costly future interventions.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>Waterproofing systems with energy impact<\/strong><\/h4>\n\n<p><\/p>\n\n<p>Not all systems have the same behavior. Some can actively contribute to improving energy efficiency.<\/p>\n\n<p><\/p>\n\n<p><strong>Inverted roof<\/strong><\/p>\n\n<p>It allows to protect the insulation and improve the thermal behavior.<\/p>\n\n<p><\/p>\n\n<p><strong>Reflective membranes<\/strong><\/p>\n\n<p>They reduce heat absorption in summer.<\/p>\n\n<p><\/p>\n\n<p><strong>Liquid systems with high elasticity<\/strong><\/p>\n\n<p>They improve tightness and prevent leaks that affect the insulation.<\/p>\n\n<p>Choosing the right system is key to obtaining a good overall result.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>Impact on the energy bill<\/strong><\/h4>\n\n<p><\/p>\n\n<p>Although it is not always immediately noticeable, good <strong>roof waterproofing<\/strong> can mean:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>lower heating costs<\/li>\n\n\n\n<li>reduction in air conditioning consumption<\/li>\n\n\n\n<li>better performance of energy systems<\/li>\n\n\n\n<li>stability in consumption<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>In the long term, this improvement translates into real economic savings.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>When should you act?<\/strong><\/h4>\n\n<p><\/p>\n\n<p>There are some signs that may indicate that waterproofing is affecting energy efficiency:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>recurring humidity<\/li>\n\n\n\n<li>cold or hot areas inside<\/li>\n\n\n\n<li>increase in energy consumption<\/li>\n\n\n\n<li>visible deterioration of the roof<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>Given these indicators, it is advisable to carry out a technical review.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>Importance of a professional diagnosis<\/strong><\/h4>\n\n<p><\/p>\n\n<p>Each building is different, and therefore there is no single solution.<\/p>\n\n<p>A correct diagnosis allows:<\/p>\n\n<p><\/p>\n\n<ul class=\"wp-block-list\">\n<li>identify the source of the problem<\/li>\n\n\n\n<li>determine the state of the system<\/li>\n\n\n\n<li>choose the most appropriate solution<\/li>\n\n\n\n<li>optimize the intervention<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>At IMPERA, this prior analysis is key to guaranteeing lasting and efficient results.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<h4 class=\"wp-block-heading\"><strong>Links of interest<\/strong><\/h4>\n\n<p><\/p>\n\n<p>If you want to delve deeper into aspects related to waterproofing, we recommend the following articles:<\/p>\n\n<p><\/p>\n\n<p><a href=\"https:\/\/impera.cat\/en\/waterproofing-walkable-terraces-systems-materials-and-mistakes-to-avoid\/\">Waterproofing of walkable terraces: systems, materials and errors to avoid.<\/a><\/p>\n\n<p><a href=\"https:\/\/impera.cat\/en\/waterproofing-is-not-painting-common-mistakes-in-terrace-maintenance\/\">Waterproofing is not painting: common mistakes in terrace maintenance<\/a><\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<p>Waterproofing not only protects against leaks, but also plays a key role in the energy efficiency of buildings.<\/p>\n\n<p><strong>Adequate waterproofing<\/strong> improves comfort, reduces consumption and contributes to a more efficient use of energy.<\/p>\n\n<p>Investing in a professional solution means betting on the durability, savings and quality of your home.<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The roof: a key element in energy efficiency The roof is one of the most exposed parts of any building. It is constantly subjected to: When waterproofing fails, these factors not only affect the tightness, but also the insulation capacity of the building. A poorly waterproofed roof can cause significant thermal losses both in winter [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8949,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80],"tags":[210,484,485,172,164,486,173,170,165],"class_list":["post-8946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-covers","tag-energy-efficiency","tag-energy-saving","tag-humidity","tag-impera","tag-insulation","tag-leaks","tag-rehabilitation","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>Waterproofing and energy efficiency: how it affects your bill - IMPERA - Impermeabilitzacions i a\u00efllaments d&#039;obra nova, Rehabilitacions<\/title>\n<meta name=\"description\" content=\"Discover how waterproofing influences energy efficiency and can help reduce consumption and energy bills.\" \/>\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\/waterproofing-and-energy-efficiency-how-it-affects-your-bill\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Waterproofing and energy efficiency: how it affects your bill - 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