{"id":35758,"date":"2026-04-24T07:28:30","date_gmt":"2026-04-24T05:28:30","guid":{"rendered":"https:\/\/i-vent.com\/hr05\/?p=35758"},"modified":"2026-07-06T08:32:21","modified_gmt":"2026-07-06T06:32:21","slug":"ventilacija-nove-zgrade","status":"publish","type":"post","link":"https:\/\/i-vent.com\/hr\/blog\/ventilacija-nove-zgrade\/","title":{"rendered":"Ventilacija novih zgrada: za\u0161to je povrat topline bitan od faze planiranja"},"content":{"rendered":"<p>Novogradnja je po definiciji energetski u\u010dinkovita \u2013 \u010dvrsto zatvorena, dobro izolirana, s minimalnim gubitkom topline. I upravo ta kvaliteta je njezin paradoks: bez mehani\u010dke ventilacije, takva ku\u0107a ili stan ne mogu disati. CO\u2082, vlaga i alergeni se nakupljaju bez izlaza. Ventilacija s povratom topline nije nadogradnja novogradnje \u2013 ona je njezina nu\u017ena komponenta.<\/p>\n<p>Sadr\u017eaj<\/p>\n<nav class=\"iv-toc\" aria-label=\"Kazalo vsebine\">\n<ol>\n<li><a href=\"#zakaj-problematicna\">Za\u0161to je nova gradnja bez ventilacije problemati\u010dna<\/a><\/li>\n<li><a href=\"#kdaj-vkljuciti\">Kada uklju\u010diti ventilaciju u svoj dizajn<\/a><\/li>\n<li><a href=\"#centralni-ali-decentralni\">Centralni ili decentralizirani sustav?<\/a><\/li>\n<li><a href=\"#kakovost-zraka\">Kvaliteta zraka: CO\u2082, hlapljivi organski spojevi i vla\u017enost<\/a><\/li>\n<li><a href=\"#pogosta-vprasanja\">Pogosta vpra\u0161anja<\/a><\/li>\n<\/ol>\n<\/nav>\n<p><!-- ================================================ H2: ZAKAJ PROBLEMATI\u010cNA ================================================ --><\/p>\n<h2 id=\"zakaj-problematicna\">Za\u0161to je nova gradnja bez ventilacije problemati\u010dna<\/h2>\n<p>Energetski u\u010dinkovite zgrade prema standardima SIST EN ili PassivHaus imaju brzinu izmjene zraka manju od <strong>0,1 h\u207b\u00b9<\/strong> \u2013 \u0161to zna\u010di da se sav zrak u prostoriji prirodno izmjenjuje manje od jednom svakih 10 sati. Preporu\u010dena vrijednost za zdrav \u017eivot je <strong>0,5 h\u207b\u00b9<\/strong> \u2013 dakle, pola volumena na sat.<\/p>\n<p>Razlika je o\u010dita: u novoj zgradi bez ventilacije, kvaliteta zraka se znatno br\u017ee pogor\u0161ava nego u starijoj, lo\u0161e izoliranoj ku\u0107i. Paradoksalno, starije ku\u0107e s pukotinama i lo\u0161e zatvorenim prozorima \u010desto se bolje prirodno ventiliraju \u2013 ali uz cijenu ve\u0107ih ra\u010duna za grijanje.<\/p>\n<div class=\"iv-info\">\n<p>Pravilnik o ventilaciji u zgradama <strong>(PURES 2020)<\/strong> zahtijeva mehani\u010dku ventilaciju za nove niskoenergetske zgrade. <a href=\"https:\/\/i-vent.com\/hr\/ventilacijski-sustavi-s-rekuperacijom-topline\/\">Ventilacija s povratom topline<\/a> nije samo preporuka \u2013 \u010desto je zahtjev za energetski u\u010dinkovite zgrade.<\/p>\n<\/div>\n<p><!-- ================================================ H2: KDAJ VKLJU\u010cITI ================================================ --><\/p>\n<h2>Kada uklju\u010diti ventilaciju u plan nove gradnje<\/h2>\n<p>Odgovor je: <strong>\u0161to je prije mogu\u0107e<\/strong>. Ventilaciju je lak\u0161e i jeftinije integrirati tijekom faze projektiranja nego nakon zavr\u0161etka gradnje. Ako se odlu\u010dite za centralni ventilacijski sustav, razlika je zna\u010dajna:<\/p>\n<div class=\"iv-table-wrap\">\n<table class=\"iv-table\" aria-label=\"Primerjava integracije prezra\u010devanja pri gradnji in naknadno\">\n<thead>\n<tr>\n<th><\/th>\n<th class=\"iv-col-hl\">Integracija u gradnju<\/th>\n<th>Naknadna ugradnja<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ugradnja cijevi<\/td>\n<td class=\"iv-col-hl\">Integrirana u konstrukciju<\/td>\n<td>Vidljiva ili naknadno izolirana<\/td>\n<\/tr>\n<tr>\n<td>Gra\u0111evinska intervencija<\/td>\n<td class=\"iv-col-hl\">Minimalna<\/td>\n<td>Opse\u017ena ili nemogu\u0107a<\/td>\n<\/tr>\n<tr>\n<td>Estetika<\/td>\n<td class=\"iv-col-hl\">Potpuno skrivena<\/td>\n<td>Kompromisi<\/td>\n<\/tr>\n<tr>\n<td>Cijena<\/td>\n<td class=\"iv-col-hl\">Ni\u017ea (integrirano u projekt)<\/td>\n<td>Vi\u0161a (naknadna ugradnja)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Za novogradnje, najprikladniji <a href=\"https:\/\/i-vent.com\/hr\/ventilacijski-sustavi-s-rekuperacijom-topline\/\">centralni ventilacijski sustav<\/a> je jedna jedinica za cijelu zgradu i cijevi raspore\u0111ene po prostorijama &#8211; instalirane tijekom faze gradnje, skrivene u konstrukciji. Za naknadne intervencije ili faznu gradnju, <a href=\"https:\/\/i-vent.com\/hr\/rekuperatori\/\">decentralizirani i-Vent sustav<\/a>, je izvrsno rje\u0161enje, koje ne zahtijeva cjevovode i uklju\u010duje rekuperatore koji su prikladni za svaku prostoriju zasebno.<\/p>\n<p><!-- ================================================ H2: KAKOVOST ZRAKA ================================================ --><\/p>\n<h2 id=\"kakovost-zraka\">Kvaliteta zraka u novim zgradama: CO\u2082, hlapljivi organski spojevi i vla\u017enost<\/h2>\n<p>Novogradnja rezultira posebnom <strong>izlo\u017eeno\u0161\u0107u hlapljivim organskim spojevima (VOC)<\/strong> prilikom useljenja \u2013 od boja, ljepila, laminata, brtvila i tapeciranog namje\u0161taja. Koncentracije VOC-a \u010desto su <strong>2 do 5 puta<\/strong> ve\u0107e u prvim mjesecima nakon izgradnje ili obnove nego u postoje\u0107im stanovima.<\/p>\n<p>Bez ventilacije, te se tvari nakupljaju u zatvorenom prostoru. <a href=\"https:\/\/i-vent.com\/hr\/ventilacijski-sustavi-s-rekuperacijom-topline\/\">Ventilacijski sustav <\/a>osigurava stalnu izmjenu zraka bez otvaranja prozora \u2013 \u0161to je posebno korisno zimi, kada su prozori dulje vrijeme zatvoreni.<\/p>\n<p>Vlaga u novogradnji tako\u0111er je poseban izazov: gra\u0111evinski materijali ispu\u0161taju vlagu tijekom su\u0161enja mjesecima nakon zavr\u0161etka gradnje. Ventilacija ubrzava su\u0161enje konstrukcije i sprje\u010dava stvaranje plijesni u neprozra\u010denoj zgradi.<\/p>\n<p><strong>Budite oprezni prilikom useljenja u novu zgradu<\/strong>: gra\u0111evinski materijali ispu\u0161taju HOS-ove i vlagu mjesecima nakon zavr\u0161etka gradnje. Ventilacija tijekom i nakon gradnje nije samo za udobnost \u2013 sustav tako\u0111er smanjuje udisanje \u0161tetnih tvari iz novih materijala i ubrzava su\u0161enje gra\u0111evinske vlage u ku\u0107i koja ne di\u0161e.<\/p>\n<div class=\"iv-cta\">\n<div>\n<p><span class=\"iv-cta-badge\">\ud83c\udfd7\ufe0f Besplatne konzultacije<\/span><\/p>\n<h3>Planiramo ventilaciju za va\u0161u novu zgradu ili renovaciju<\/h3>\n<p>Stru\u010dnjak tvrtke i-Vent predlo\u017eit \u0107e optimalno rje\u0161enje ovisno o fazi gradnje i vrsti zgrade.<\/p>\n<\/div>\n<div class=\"iv-cta-btns\"><a class=\"iv-btn\" href=\"https:\/\/i-vent.com\/hr\/ventilacijski-sustavi-s-rekuperacijom-topline\/#kontakt\">Besplatne konzultacije \u2192<\/a><br \/>\n<a class=\"iv-btn-outline\" href=\"https:\/\/i-vent.com\/hr\/ventilacijski-sustavi-s-rekuperacijom-topline\/\">Prikaz sustava<\/a><\/div>\n<div><\/div>\n<\/div>\n<p><!-- ================================================ H2: FAQ ================================================ --><\/p>\n<h2>\u010cesto postavljana pitanja o ventilaciji u novim zgradama<\/h2>\n<h3>+Je li ventilacija s povratom topline obavezna za nove zgrade?<\/h3>\n<p>Za energetski u\u010dinkovite zgrade (pasivne ku\u0107e, niskoenergetske zgrade), PURES 2020 zahtijeva mehani\u010dku ventilaciju. Za manje stroge standarde, ventilacija je preporuka, ali u \u010dvrsto zatvorenoj gradnji prakti\u010dki je neophodna za zdrav \u017eivot.<\/p>\n<h3>+Kada je najbolje vrijeme za planiranje ventilacije u novim zgradama?<\/h3>\n<p>Tijekom faze projektiranja, prije po\u010detka gradnje. Cjevovod za centralni sustav puno je lak\u0161e ugraditi u konstrukciju nego naknadno. Me\u0111utim, za decentralizirani sustav ventilacije vrijeme ugradnje je fleksibilno &#8211; prije ili nakon useljenja.<\/p>\n<h3>+Je li decentralizirani i-Vent sustav dovoljan za nove zgrade?<\/h3>\n<p>Da. Decentralizirani i-Vent sustav je potpuno rje\u0161enje za nove zgrade jer radi kao povezani sustav koji u potpunosti zamjenjuje potrebu za centralnim ure\u0111ajem. Za razliku od centralnog sustava, ne zahtijeva distribuciju cijevi po cijeloj zgradi, a istovremeno je napredniji od obi\u010dnih lokalnih rekuperatora, jer osigurava koordinirano prozra\u010divanje cijelog \u017eivotnog prostora.<\/p>\n<p>Za ve\u0107e zgrade ili specifi\u010dne zahtjeve (npr. ventilaciju podruma, gara\u017ea), centralni sustav je \u010desto prikladniji.<\/p>\n<h3>+Koliko rekuperacijskih jedinica treba novoj zgradi?<\/h3>\n<p>Osnovno pravilo je jedna jedinica za svaki stambeni prostor s vanjskim zidom. Za stan 3+1 to obi\u010dno zna\u010di 3-4 jedinice (spava\u0107e sobe i dnevni boravak), dok se kupaonica rje\u0161ava postoje\u0107im ventilatorom ili dodatnom jedinicom.<\/p>\n<div class=\"iv-related\"><div class=\"iv-related-title\">Preberite tudi<\/div><div class=\"iv-related-grid\"><a href=\"https:\/\/i-vent.com\/hr\/blog\/lokalni-vs-centralni-rekuperator\/\" class=\"iv-related-card\"><div class=\"iv-related-img\"><img decoding=\"async\" src=\"https:\/\/i-vent.com\/hr\/wp-content\/uploads\/2026\/03\/lokalni-rekuperator-300x200.jpg\" alt=\"Lokalna ili centralna jedinica za povrat topline? Usporedba 2026\" loading=\"lazy\"><\/div><div class=\"iv-related-content\"><h4>Lokalna ili centralna jedinica za povrat topline? Usporedba 2026<\/h4><p>Lokalni rekuperator topline ili centralni ventilacijski sustav \u2013 ovo je jedna od naj\u010de\u0161\u0107ih dilema pri planiranju ventilacije doma. U ovom vodi\u010du obja\u0161njavamo razliku, uspore\u0111ujemo tro\u0161kove i poma\u017eemo vam da donesete pravu odluku. Sadr\u017eaj Klju\u010dna razlika izme\u0111u dva sustava Lokalna jedinica za...<\/p><span class=\"iv-related-cta\">Preberite ve\u010d \u2192<\/span><\/div><\/a><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Novogradnja je po definiciji energetski u\u010dinkovita \u2013 \u010dvrsto zatvorena, dobro izolirana, s minimalnim gubitkom topline. I upravo ta kvaliteta je njezin paradoks: bez mehani\u010dke ventilacije, takva ku\u0107a ili stan ne mogu disati. CO\u2082, vlaga i alergeni se nakupljaju bez izlaza. Ventilacija&#8230;<\/p>\n","protected":false},"author":5,"featured_media":35759,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[136,233],"tags":[],"class_list":["post-35758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-ventilacija"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ventilacija novih zgrada: za\u0161to je povrat topline bitan ve\u0107 tijekom planiranja | i-Vent<\/title>\n<meta name=\"description\" content=\"Novogradnja ne mo\u017ee disati bez ventilacije. PURES 2020 zahtijeva mehani\u010dku ventilaciju - centralni ili decentralizirani i-Vent sustav. 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