{"id":7614,"date":"2016-08-04T14:54:49","date_gmt":"2016-08-04T11:54:49","guid":{"rendered":"http:\/\/neo.kofinas.gr\/en\/?page_id=7614"},"modified":"2016-10-27T13:40:24","modified_gmt":"2016-10-27T10:40:24","slug":"how-it-works","status":"publish","type":"page","link":"https:\/\/www.kofinas.gr\/eng\/passive-house\/how-it-works\/","title":{"rendered":"How it functions"},"content":{"rendered":"<div class=\"uk-grid\">\n<div class=\"uk-width-1-1\">\n<p>The main strategy of a passive building is <strong>reusing<\/strong> the &quot;free&quot; energy in order to heat the house.<\/p>\n<p>This &quot;free&quot; energy is produced by all the electrical appliances, like stoves, refrigerators, computers, lamps etc. The <strong>building shell <\/strong>of a passive house has to be really well <strong>insulated and airtight<\/strong>, so that this &quot;free&quot; energy does not leave the interior of the house unused.<\/p>\n<\/div>\n<\/div>\n<div class=\"uk-grid uk-margin-large-top\">\n<div class=\"uk-width-medium-1-2\">\n<dl class=\"uk-description-list uk-description-list-line uk-text-justify\">\n<dt><span class=\"uk-badge uk-badge-danger uk-badge-notification\">1<\/span> <strong>Thermal insulation<\/strong><\/dt>\n<dd>A correctly insulated shell, during the winter, maintains the heat inside the building, while during the summer it prevents the heat from entering the house.<\/dd>\n<dt><span class=\"uk-badge uk-badge-danger uk-badge-notification\">2<\/span> <strong>Passive House windows<\/strong><\/dt>\n<dd>The correctly designed, insulated and installed frames participate in the best usage of solar gains.<\/dd>\n<dt><span class=\"uk-badge uk-badge-danger uk-badge-notification\">3<\/span> <strong>Ventilation heat recovery<\/strong><\/dt>\n<dd>The ventilation systems of passive buildings offer clean air, free of pollen and dust, with maximum energy efficiency through heat recovery and humidity control.<\/dd>\n<dt><span class=\"uk-badge uk-badge-danger uk-badge-notification\">4<\/span> <strong>Airtightness of the building<\/strong><\/dt>\n<dd>Passive buildings are designed to avoid air leaks in the building shell, thus increasing energy efficiency and preventing the occurrence of drafts and damage from moisture.<\/dd>\n<dt><span class=\"uk-badge uk-badge-danger uk-badge-notification\">5<\/span> <strong>Absence of thermal bridges<\/strong><\/dt>\n<dd>Minimizing thermal bridges and weaknesses in the building shell, contributes to creating a pleasant and constant temperature and eliminates damage from moisture while increasing energy efficiency.<\/dd>\n<\/dl>\n<\/div>\n<div class=\"uk-width-medium-1-2\"><a href=\"\/wp-content\/uploads\/kofinas\/passive-house\/passive-house-work-2.jpg\" data-uk-lightbox=\"{group:'passive-house-work'}\" data-lightbox-type=\"image\" data-lbwps-width=\"980\" data-lbwps-height=\"980\" data-lbwps-srcsmall=\"https:\/\/www.kofinas.gr\/wp-content\/uploads\/kofinas\/passive-house\/passive-house-work-2.jpg\"><img decoding=\"async\" class=\"uk-align-medium-right\" src=\"\/wp-content\/uploads\/kofinas\/passive-house\/passive-house-work-2.jpg\" alt=\"The 5 basic principles of passives\" \/><\/a><\/div>\n<\/div>\n<p>Shading, natural night ventilation, air geothermal systems and correct design of thermal mass contribute to better performance of passive buildings in Mediterranean climates.<\/p>\n<hr class=\"uk-grid-divider\" \/>\n<h3>As a result, we can describe what is happening as follows:<\/h3>\n<div class=\"uk-grid\">\n<div class=\"uk-width-medium-1-2\"><a href=\"\/wp-content\/uploads\/kofinas\/passive-house\/passive-house-work-3.jpg\" data-uk-lightbox=\"{group:'passive-house-work'}\" data-lbwps-width=\"960\" data-lbwps-height=\"953\" data-lbwps-srcsmall=\"https:\/\/www.kofinas.gr\/wp-content\/uploads\/kofinas\/passive-house\/passive-house-work-3.jpg\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/kofinas\/en_photos\/prokat-info\/PH_ventilation-PHI_GRBR_2010en.jpg\" alt=\"Illustrated description of a passive building\" \/><\/a><\/div>\n<div class=\"uk-width-medium-1-2\">\n<ul class=\"uk-text-justify\">\n<li>A <strong> mechanical ventilation system <\/strong> with an <strong>air to air heat exchanger <\/strong> is installed so that it can simultaneously bring <strong>fresh air<\/strong> and remove a corresponding amount of <strong>stale air<\/strong>.<\/li>\n<li>The warm <strong>stale air<\/strong> that leaves the house, &quot;carries&quot; the &quot;free&quot; heat, which through the exchanger moves to the <strong>fresh air <\/strong> which enters the house.<\/li>\n<li>The cool exterior <strong>fresh air <\/strong>enter the exchanger, <strong>receives the heat <\/strong>of the rejected <strong>stale air<\/strong> and enters the house during the winter months, while during the summer the rejected <strong>stale air<\/strong> cools the \u2013 warmer \u2013 incoming<strong> fresh air<\/strong>.<\/li>\n<li>The cost of an expensive conventional heating\/cooling system can be avoided and economic benefits can be attributed to better <strong>insulation<\/strong>, improved <strong>airtightness<\/strong>, <strong>window frames<\/strong>, <strong>ventilation system <\/strong>and an economical backup heating system.<\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The main strategy of a passive building is reusing the \u201cfree\u201d energy in order to heat the house. This \u201cfree\u201d energy is produced by all the electrical appliances, like stoves, refridgerators, computers, lamps etc. The building shell of a passive house has to be really well insulated and airtight, so that this \u201cfree\u201d energy does [&hellip;]<\/p>","protected":false},"author":3,"featured_media":0,"parent":7612,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-7614","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How it functions | \u039a\u03bf\u03c6\u03b9\u03bd\u03ac\u03c2 \u03a0\u03c1\u03bf\u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c0\u03af\u03c4\u03b9\u03b1 - \u03a0\u03c1\u03bf\u03ba\u03ac\u03c4<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kofinas.gr\/eng\/passive-house\/how-it-works\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How it functions\" \/>\n<meta property=\"og:description\" content=\"The main strategy of a passive building is reusing the \u201cfree\u201d energy in order to heat the house. This \u201cfree\u201d energy is produced by all the electrical appliances, like stoves, refridgerators, computers, lamps etc. The building shell of a passive house has to be really well insulated and airtight, so that this \u201cfree\u201d energy does [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kofinas.gr\/eng\/passive-house\/how-it-works\/\" \/>\n<meta property=\"og:site_name\" content=\"\u039a\u03bf\u03c6\u03b9\u03bd\u03ac\u03c2 \u03a0\u03c1\u03bf\u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c0\u03af\u03c4\u03b9\u03b1 - \u03a0\u03c1\u03bf\u03ba\u03ac\u03c4\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/kofinas.prokataskevasmena\" \/>\n<meta property=\"article:modified_time\" content=\"2016-10-27T10:40:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kofinas.gr\/wp-content\/uploads\/2025\/03\/360new-logo-25.gif\" \/>\n\t<meta property=\"og:image:width\" content=\"230\" \/>\n\t<meta property=\"og:image:height\" content=\"70\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/gif\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@kofinas_prokat\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kofinas.gr\/den\/passivhaus-2\/so-funktioniert-es\/\",\"url\":\"https:\/\/www.kofinas.gr\/den\/passivhaus-2\/so-funktioniert-es\/\",\"name\":\"How it functions | \u039a\u03bf\u03c6\u03b9\u03bd\u03ac\u03c2 \u03a0\u03c1\u03bf\u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c0\u03af\u03c4\u03b9\u03b1 - 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Their philosophy underscores continuous innovation\u2014they don&#039;t aim to build more homes, but to build better homes Strength &amp; Certification The company&#039;s unique construction system has undergone rigorous experimental testing at the National Technical University of Athens, proving its durability well beyond natural endurance limits. Innovations introduced by KOFINAS are internationally recognized and certified. Sustainability &amp; Eco Friendly Building KOFINAS uses Swedish and Finnish timber as its primary construction material, achieving a remarkably low carbon footprint: replacing conventional materials with wood reduces carbon dioxide emissions by 1.1 tons per cubic meter. In collaboration with Nordic sawmills, for every tree harvested, three to five new trees are planted, resulting in a negative carbon footprint. Additionally, their homes feature bioclimatic design and achieve energy consumption reductions of 75%\u201380% compared to conventional buildings\u2014often earning them energy efficiency A certificates. Advanced Production Facilities KOFINAS operates a modern factory, built to European standards, with ISO 14001 certification\u2014ensuring top-tier quality and environmental management in prefabricated housing production. Wide Range of Custom Designs Their catalog includes single, two, and three story homes, ground floor units with lofts, passive houses, and tourist accommodations. They also offer the \u201cFlexyHome\u201d series and Finnlamelli Finnish log houses, providing versatility to meet diverse aesthetic and functional needs. Experienced Team &amp; Nationwide Network KOFINAS boasts a skilled, multidisciplinary team\u2014including civil and architectural engineers\u2014who oversee design, permit processing, and project implementation with a 100% success rate. 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