{"id":10375,"date":"2026-04-07T13:09:59","date_gmt":"2026-04-07T11:09:59","guid":{"rendered":"https:\/\/www.wachal.cz\/?p=10375"},"modified":"2026-04-07T13:10:00","modified_gmt":"2026-04-07T11:10:00","slug":"hydroizolace-plochych-strech-a-teras-nejcastejsi-chyby-a-jak-spravne-zvolit-a-aplikovat-folie-a-natery","status":"publish","type":"post","link":"https:\/\/www.wachal.cz\/en\/hydroizolace-plochych-strech-a-teras-nejcastejsi-chyby-a-jak-spravne-zvolit-a-aplikovat-folie-a-natery\/","title":{"rendered":"Hydroizolace ploch\u00fdch st\u0159ech a teras: Nej\u010dast\u011bj\u0161\u00ed chyby a jak spr\u00e1vn\u011b zvolit a aplikovat f\u00f3lie a n\u00e1t\u011bry"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ploch\u00e9 st\u0159echy a terasy jsou z hlediska stavebn\u00ed fyziky nejv\u00edce exponovan\u00fdmi \u010d\u00e1stmi budovy. Jejich hlavn\u00ed ochrana &#8211; hydroizolace &#8211; je neust\u00e1le vystavena UV z\u00e1\u0159en\u00ed, teplotn\u00edm v\u00fdkyv\u016fm, mrazu a vod\u011b. Ka\u017ed\u00e1 chyba p\u0159i n\u00e1vrhu nebo aplikaci se d\u0159\u00edve \u010di pozd\u011bji projev\u00ed zat\u00e9k\u00e1n\u00edm, kter\u00e9 m\u016f\u017ee zp\u016fsobit nenapraviteln\u00e9 \u0161kody. Jaro je ide\u00e1ln\u00ed \u010das pro kontrolu a opravu hydroizolace po zim\u011b. Jak se vyvarovat nej\u010dast\u011bj\u0161\u00edm chyb\u00e1m?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Nej\u010dast\u011bj\u0161\u00ed chyby p\u0159i aplikaci hydroizolace (Kritick\u00fd bod \u010d. 1)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K po\u0161kozen\u00ed izolace nedoch\u00e1z\u00ed prim\u00e1rn\u011b na plo\u0161e, ale v detailech a kv\u016fli nedostate\u010dn\u00e9 p\u0159\u00edprav\u011b.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0160patn\u00e9 \u0159e\u0161en\u00ed detail\u016f (Kritick\u00fd bod \u010d. 1): V\u011bt\u0161ina probl\u00e9m\u016f se zat\u00e9k\u00e1n\u00edm nepoch\u00e1z\u00ed z plochy st\u0159echy, ale z detail\u016f &#8211; prostup\u016f (kom\u00edny, ant\u00e9ny), roh\u016f, kout\u016f, napojen\u00ed na atiku. Tyto spoje jsou nejslo\u017eit\u011bj\u0161\u00ed na proveden\u00ed a vy\u017eaduj\u00ed nejv\u011bt\u0161\u00ed pe\u010dlivost a \u010dasto pou\u017eit\u00ed tekut\u00e9 hydroizolace.<\/li>\n\n\n\n<li>Nedostate\u010dn\u00fd sp\u00e1d a kalu\u017ee: I ploch\u00e1 st\u0159echa mus\u00ed m\u00edt sp\u00e1d (doporu\u010deno 1,5\u20132 %) sm\u011brem k odtok\u016fm. Pokud je sp\u00e1d nedostate\u010dn\u00fd, vznikaj\u00ed kalu\u017ee, kter\u00e9 zbyte\u010dn\u011b zat\u011b\u017euj\u00ed izolaci a urychluj\u00ed jej\u00ed degradaci pod UV z\u00e1\u0159en\u00edm.<\/li>\n\n\n\n<li>Drsn\u00fd podklad: Hydroizolace se aplikuje na dokonale rovn\u00fd a \u010dist\u00fd podklad. Drsn\u00fd nebo ostr\u00fd podklad m\u016f\u017ee mechanicky po\u0161kodit f\u00f3lii.<\/li>\n\n\n\n<li>Chyb\u011bj\u00edc\u00ed nebo \u0161patn\u00e1 paroz\u00e1brana: U tepl\u00fdch ploch\u00fdch st\u0159ech je kl\u00ed\u010dov\u00e1 paroz\u00e1brana pod tepelnou izolac\u00ed. Pokud chyb\u00ed, doch\u00e1z\u00ed ke kondenzaci vodn\u00ed p\u00e1ry uvnit\u0159 tepeln\u00e9 izolace, \u010d\u00edm\u017e se sni\u017euje jej\u00ed \u00fa\u010dinnost.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Srovn\u00e1n\u00ed hydroizola\u010dn\u00edch materi\u00e1l\u016f<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Volba materi\u00e1lu z\u00e1vis\u00ed na typu st\u0159echy, podkladu a po\u017eadovan\u00e9 \u017eivotnosti.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Asfaltov\u00e9 p\u00e1sy (SBS modifikovan\u00e9): Klasika, cenov\u011b dostupn\u00e9, odoln\u00e9 proti mechanick\u00e9mu po\u0161kozen\u00ed, ale aplikace je n\u00e1ro\u010dn\u00e1 (natavuj\u00ed se plamenem) a \u010dasem mohou tvrdnout a praskat.<\/li>\n\n\n\n<li>F\u00f3lie PVC\/TPO: Modern\u00ed \u0159e\u0161en\u00ed. Jsou lehk\u00e9, velmi pru\u017en\u00e9 a vysoce odoln\u00e9 v\u016f\u010di UV z\u00e1\u0159en\u00ed, co\u017e jim zaji\u0161\u0165uje dlouhou \u017eivotnost (30+ let). Aplikuj\u00ed se sva\u0159ov\u00e1n\u00edm hork\u00fdm vzduchem a vy\u017eaduj\u00ed kvalifikovanou firmu.<\/li>\n\n\n\n<li>Tekut\u00e9 hydroizolace: Nan\u00e1\u0161ej\u00ed se jako n\u00e1t\u011br\/st\u011brka, \u010d\u00edm\u017e vytv\u00e1\u0159ej\u00ed beze\u0161vou vrstvu. Ide\u00e1ln\u00ed pro opravy a zejm\u00e9na pro slo\u017eit\u00e9 detaily a prostupy. Maj\u00ed vysokou elasticitu.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak na spr\u00e1vnou aplikaci a detaily (Kritick\u00fd bod \u010d. 2)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bez ohledu na zvolen\u00fd materi\u00e1l plat\u00ed n\u011bkolik z\u00e1kladn\u00edch pravidel pro spr\u00e1vnou aplikaci:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159\u00edprava podkladu: Podklad mus\u00ed b\u00fdt v\u017edy such\u00fd, \u010dist\u00fd a zbaven\u00fd ostr\u00fdch hran. U sav\u00fdch podklad\u016f je nutn\u00e1 penetrace.<\/li>\n\n\n\n<li>Paroz\u00e1brana a Tepeln\u00e1 izolace: U tepl\u00e9 st\u0159echy je nutn\u00e9 zajistit dokonalou t\u011bsnost paroz\u00e1brany.<\/li>\n\n\n\n<li>Detailn\u00ed \u0159e\u0161en\u00ed: V\u0161echny detaily (napojen\u00ed na atiku, prostupy) se \u0159e\u0161\u00ed p\u0159ed pokl\u00e1dkou hlavn\u00ed plochy st\u0159echy. Hydroizolace mus\u00ed b\u00fdt v\u017edy vyta\u017eena do v\u00fd\u0161ky (min. 15 cm) na svislou \u010d\u00e1st atiky a ukon\u010dena li\u0161tou.<\/li>\n\n\n\n<li>Prostupy: Je nutn\u00e9 pou\u017e\u00edt prefabrikovan\u00e9 tvary nebo tekutou hydroizolaci pro dokonal\u00e9 ut\u011bsn\u011bn\u00ed v m\u00edst\u011b potrub\u00ed nebo kom\u00ednu.<\/li>\n\n\n\n<li>Kontrola Spoj\u016f: U f\u00f3li\u00ed a p\u00e1s\u016f je kritick\u00e1 kontrola spoj\u016f a sv\u00e1r\u016f. U tekut\u00fdch izolac\u00ed je nutn\u00e9 dodr\u017eet p\u0159edepsanou tlou\u0161\u0165ku.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Hydroizolace ploch\u00e9 st\u0159echy nebo terasy vy\u017eaduje nejv\u011bt\u0161\u00ed investici do kvality pr\u00e1ce a materi\u00e1lu. Chyby zde vedou k drah\u00fdm a komplikovan\u00fdm oprav\u00e1m. Ne\u0161et\u0159ete na detailech, zvolte kvalitn\u00ed, prov\u011b\u0159en\u00fd materi\u00e1l a hlavn\u011b se obra\u0165te na specializovanou firmu s certifikovan\u00fdmi pracovn\u00edky. I mal\u00e1 chyba m\u016f\u017ee ohrozit celou st\u0159echu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ploch\u00e9 st\u0159echy a terasy jsou z hlediska stavebn\u00ed fyziky nejv\u00edce exponovan\u00fdmi \u010d\u00e1stmi budovy. Jejich hlavn\u00ed ochrana &#8211; hydroizolace &#8211; je neust\u00e1le vystavena UV z\u00e1\u0159en\u00ed, teplotn\u00edm v\u00fdkyv\u016fm, mrazu a&#8230;<\/p>\n","protected":false},"author":3,"featured_media":10376,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[40],"tags":[],"class_list":["post-10375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/posts\/10375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/comments?post=10375"}],"version-history":[{"count":1,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/posts\/10375\/revisions"}],"predecessor-version":[{"id":10378,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/posts\/10375\/revisions\/10378"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/media\/10376"}],"wp:attachment":[{"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/media?parent=10375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/categories?post=10375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wachal.cz\/en\/wp-json\/wp\/v2\/tags?post=10375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}