{"id":30831,"date":"2019-06-04T14:54:50","date_gmt":"2019-06-04T12:54:50","guid":{"rendered":"http:\/\/136.144.181.85\/~nedzink\/technicke-info\/nosne-konstrukce\/konstrukce-bez-odvetrani-zezadu\/"},"modified":"2019-06-04T14:54:50","modified_gmt":"2019-06-04T12:54:50","slug":"konstrukce-bez-odvetrani-zezadu","status":"publish","type":"page","link":"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-bez-odvetrani-zezadu\/","title":{"rendered":"Konstrukce bez odv\u011btr\u00e1n\u00ed zezadu"},"content":{"rendered":"<p>\n\t&nbsp;<\/p>\n<p>\n\tKonstrukce bez odv\u011btr&aacute;n&iacute; lze prov&aacute;d\u011bt pouze po kontrole, naprojektov&aacute;n&iacute; a detailn&iacute;m napl&aacute;nov&aacute;n&iacute; se spole\u010dnost&iacute; NedZink. V z&aacute;vislosti na typu st\u0159echy (nap\u0159. ploch&aacute; st\u0159echa; st\u0159echa se zm\u011bnami sklonu; st\u0159echa s prostupy) m\u016f\u017ee b&yacute;t &uacute;\u010deln&eacute; up\u0159ednostnit nev\u011btranou konstrukci. P\u0159itom se kladou vysok&eacute; po\u017eadavky na p\u0159esn&eacute; napl&aacute;nov&aacute;n&iacute; a proveden&iacute; ka\u017ed&eacute;ho detailu.<\/p>\n<p>\n\tTransport<strong>vlhkosti<\/strong><\/p>\n<p>\n\tNev\u011btran&aacute; konstrukce NedZink je schopn&aacute; pouze v mal&eacute; m&iacute;\u0159e odv&aacute;d\u011bt ven z konstrukce vlhkost, kter&aacute; pronikne pod plech. K tomuto transportu sm\u011brem ven obvykle doch&aacute;z&iacute; pouze p\u0159i pr\u016fchodu p&aacute;ry stojat&yacute;mi dr&aacute;\u017ekami\/falci v tepl&eacute;m ro\u010dn&iacute;m obdob&iacute;. Ale pro nadm\u011brn&eacute; nahromad\u011bn&iacute; vlhkosti se toto d\u011bje p\u0159&iacute;li&scaron; pomalu, ne\u017e aby bylo mo\u017en&eacute; zabr&aacute;nit v&yacute;skytu koroze na spodn&iacute; stran\u011b plechu, &scaron;kod&aacute;m nosn&eacute; konstrukce v d\u016fsledku koroze nebo zmen&scaron;en&iacute; odporu p\u0159i pr\u016fchodu tepla.<\/p>\n<p>\n\tTak je mo\u017en&eacute; zabr&aacute;nit hromad\u011bn&iacute; vlhkosti:<\/p>\n<ul>\n<li style=\"margin-left: 18pt; \">\n\t\t&nbsp;eliminovat zabudovanou vlhkost stavebn&iacute;ch hmot<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\t&nbsp;chr&aacute;nit konstrukce p\u0159ed provlhnut&iacute;m b\u011bhem doby v&yacute;stavby<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\t&nbsp;eliminovat difuzi p&aacute;ry<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\t&nbsp;odstranit tepeln&eacute; mosty<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\t&nbsp;db&aacute;t na \u0159&aacute;dn&eacute; \u0159emesln&eacute; proveden&iacute;<\/li>\n<\/ul>\n<p>\n\tVlhkost, kter&eacute; nelze zabr&aacute;nit, mus&iacute; b&yacute;t \u010dasem z konstrukce odvedena ven tak, aby p\u0159itom nezp\u016fsobila \u017e&aacute;dn&eacute; &scaron;kody.<\/p>\n<p>\n\tZabudovan&aacute; <strong>vlhkost stavebn&iacute;ch hmot<\/strong><\/p>\n<p>\n\tPou\u017eit&eacute; stavebn&iacute; hmoty musej&iacute; b&yacute;t p\u0159i mont&aacute;\u017ei such&eacute; a p\u0159i skladov&aacute;n&iacute;, doprav\u011b a mont&aacute;\u017ei je t\u0159eba je chr&aacute;nit proti provlhnut&iacute; zp\u016fsoben&eacute;m pov\u011btrnostn&iacute;mi vlivy. Pou\u017eij&iacute; se normalizovan&eacute; stavebn&iacute; hmoty, kter&eacute; jsou odoln&eacute; v\u016f\u010di teplot&aacute;m a deformac&iacute;m.<\/p>\n<p>\n\t<strong>Ochrana p\u0159ed provlhnut&iacute;m b\u011bhem v&yacute;stavby<\/strong><\/p>\n<p>\n\tB\u011bhem prov&aacute;d\u011bn&iacute; prac&iacute; je t\u0159eba chr&aacute;nit vhodn&yacute;mi prost\u0159edky proti provlhnut&iacute; pou\u017e&iacute;van&eacute; stavebn&iacute; hmoty, obzvl&aacute;&scaron;\u0165 materi&aacute;ly jako d\u0159evo a materi&aacute;ly z miner&aacute;ln&iacute;ch vl&aacute;ken, kter&eacute; maj&iacute; vysokou schopnost absorpce vlhkosti. Tohoto lze dos&aacute;hnout nap\u0159. do\u010dasnou ochranou z f&oacute;li&iacute; nebo plachet.<\/p>\n<p>\n\t<strong>Difuze p&aacute;ry<\/strong><\/p>\n<p>\n\tZabr&aacute;n\u011bn&iacute; pronik&aacute;n&iacute; vlhkosti difuz&iacute; z vnit\u0159n&iacute;ho prostoru budov je dal&scaron;&iacute;m podstatn&yacute;m p\u0159edpokladem pro funk\u010dn&iacute; bezpe\u010dnost. K tomu se pou\u017eije vzduchot\u011bsn&aacute; a parot\u011bsn&aacute; z&aacute;brana s hodnotou tlaku nasycen&eacute; vodn&iacute; p&aacute;ry &ge; 100 m podle DIN 4108. Krom\u011b toho je pot\u0159eba dodr\u017eet normu DIN 4108, na\u0159&iacute;zen&iacute; pro tepelnou ochranu a na\u0159&iacute;zen&iacute; pro &uacute;spory energi&iacute; v p\u0159&iacute;slu&scaron;n&eacute;m platn&eacute;m zn\u011bn&iacute;.<\/p>\n<p>\n\t<strong>Tepeln&eacute; mosty<\/strong><\/p>\n<p>\n\tTepeln&eacute; mosty mohou m&iacute;t r\u016fzn&eacute; p\u0159&iacute;\u010diny a sv&yacute;m p\u016fsoben&iacute;m mohou m&iacute;t za n&aacute;sledek pronik&aacute;n&iacute; zkondenzovan&eacute; vody do konstrukce. Zvl&aacute;&scaron;tn&iacute; pozornost je t\u0159eba v\u011bnovat ulo\u017een&iacute; tepeln&eacute; izolace tak, aby v n&iacute; nebyly sp&aacute;ry a mezery. Prostupuj&iacute;c&iacute; kotvic&iacute; prvky se vol&iacute; a zabudov&aacute;vaj&iacute; tak, aby byla zaru\u010dena bezvadn&aacute; funk\u010dnost bez n&aacute;sledn&yacute;ch &scaron;kod.<\/p>\n<p>\n\t<strong>\u0158emesln&eacute; proveden&iacute;<\/strong><\/p>\n<p>\n\tPro funguj&iacute;c&iacute; konstrukci je nezbytn&eacute; pe\u010dliv&eacute; proveden&iacute; mont&aacute;\u017en&iacute;ch prac&iacute; v souladu s p\u0159edpisy, obzvl&aacute;&scaron;\u0165 se to t&yacute;k&aacute; detail\u016f p\u0159i napojen&iacute;, proto\u017ee vlhkost proniklou pod plech lze odv&aacute;d\u011bt pouze velmi pomalu a v nepatrn&eacute;m mno\u017estv&iacute;.<\/p>\n<p>\n\t<strong>D\u011blic&iacute; vrstva<\/strong><\/p>\n<p>\n\tP\u0159i prov&aacute;d\u011bn&iacute; nev\u011btran&yacute;ch konstrukc&iacute; s materi&aacute;ly NedZink se v\u017edy namontuje p\u0159&iacute;mo pod plech difuzn&iacute; d\u011blic&iacute; vrstva. T&iacute;m doch&aacute;z&iacute; k odstran\u011bn&iacute; vlhkosti, kter&aacute; se dostane pod plech a \u010dasem je odvedena, ani\u017e by zp\u016fsobila &scaron;kody.<\/p>\n<p>\n\t<strong>Ochrann&aacute; vrstva na spodn&iacute; stran\u011b<\/strong><\/p>\n<p>\n\tPro konstrukce se zv&yacute;&scaron;en&yacute;mi n&aacute;roky (nap\u0159. plov&aacute;rny, velkokapacitn&iacute; kuchyn\u011b) je k dispozici NedZink NOVA s ochrannou vrstvou na spodn&iacute; stran\u011b.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Konstrukce bez odv\u011btr&aacute;n&iacute; lze prov&aacute;d\u011bt pouze po kontrole, naprojektov&aacute;n&iacute; a detailn&iacute;m napl&aacute;nov&aacute;n&iacute; se spole\u010dnost&iacute; NedZink. V z&aacute;vislosti na typu st\u0159echy (nap\u0159. ploch&aacute; st\u0159echa; st\u0159echa se zm\u011bnami sklonu; st\u0159echa s prostupy) m\u016f\u017ee b&yacute;t &uacute;\u010deln&eacute; up\u0159ednostnit nev\u011btranou konstrukci. P\u0159itom se kladou vysok&eacute; po\u017eadavky na p\u0159esn&eacute; napl&aacute;nov&aacute;n&iacute; a proveden&iacute; ka\u017ed&eacute;ho detailu. Transportvlhkosti Nev\u011btran&aacute; konstrukce NedZink je schopn&aacute; [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":30781,"menu_order":770,"comment_status":"closed","ping_status":"closed","template":"template-import.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-30831","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Konstrukce bez odv\u011btr\u00e1n\u00ed zezadu \u2013 NedZink<\/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.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-bez-odvetrani-zezadu\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Konstrukce bez odv\u011btr\u00e1n\u00ed zezadu \u2013 NedZink\" \/>\n<meta property=\"og:description\" content=\"&nbsp; Konstrukce bez odv\u011btr&aacute;n&iacute; lze prov&aacute;d\u011bt pouze po kontrole, naprojektov&aacute;n&iacute; a detailn&iacute;m napl&aacute;nov&aacute;n&iacute; se spole\u010dnost&iacute; NedZink. V z&aacute;vislosti na typu st\u0159echy (nap\u0159. ploch&aacute; st\u0159echa; st\u0159echa se zm\u011bnami sklonu; st\u0159echa s prostupy) m\u016f\u017ee b&yacute;t &uacute;\u010deln&eacute; up\u0159ednostnit nev\u011btranou konstrukci. P\u0159itom se kladou vysok&eacute; po\u017eadavky na p\u0159esn&eacute; napl&aacute;nov&aacute;n&iacute; a proveden&iacute; ka\u017ed&eacute;ho detailu. 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