{"id":30844,"date":"2019-06-04T14:54:53","date_gmt":"2019-06-04T12:54:53","guid":{"rendered":"http:\/\/136.144.181.85\/~nedzink\/technicke-info\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/"},"modified":"2019-06-04T14:54:53","modified_gmt":"2019-06-04T12:54:53","slug":"konstrukce-s-odvetranim-zezadu","status":"publish","type":"page","link":"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/","title":{"rendered":"Konstrukce s odv\u011btr\u00e1n\u00edm zezadu"},"content":{"rendered":"<p>\n\t&nbsp;<\/p>\n<p>\n\tKonstrukce st\u0159ech a st\u011bn odv\u011btr&aacute;van&yacute;ch vzduchovou mezerou pod kryc&iacute; vrstvou maj&iacute; odv&aacute;d\u011bt na z&aacute;klad\u011b funguj&iacute;c&iacute;ho pohybu vzduchu vlhkost proniklou do konstrukce pomoc&iacute; otvor\u016f pro p\u0159iv&aacute;d\u011bn&yacute; a odv&aacute;d\u011bn&yacute; vzduch.<\/p>\n<p>\n\tAby se zajistila bezpe\u010dn&aacute; a spolehliv&aacute; funkce odv\u011btr&aacute;van&eacute; konstrukce, je nutn&eacute; dodr\u017eet n\u011bkter&eacute; p\u0159edpoklady:<\/p>\n<ul>\n<li style=\"margin-left: 18pt; \">\n\t\t&nbsp;V\u011btran&aacute; mezera nem\u016f\u017ee vyrovnat pochyben&iacute; vznikl&aacute; p\u0159i zaji&scaron;t\u011bn&iacute; vzduchut\u011bsnosti cel&eacute; konstrukce<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\tJe nutn&eacute; zabudovat vhodn&eacute; vzduchov&eacute; z&aacute;brany a paroz&aacute;brany a p\u0159ipojit je na navazuj&iacute;c&iacute; stavebn&iacute; konstrukce tak, aby byly vzduchot\u011bsn&eacute;<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\tVeden&iacute; vzduchu mus&iacute; umo\u017e\u0148ovat kontinu&aacute;ln&iacute; proud\u011bn&iacute; vzduchu<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\tPou\u017e&iacute;van&eacute; materi&aacute;ly mus&iacute; b&yacute;t zcela such&eacute;<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\tPo dobu v&yacute;stavby se p\u0159echodn\u011b chr&aacute;n&iacute; otev\u0159en&eacute; spoje a sp&aacute;ry proti pronik&aacute;n&iacute; vlhkosti ze sr&aacute;\u017eek<\/li>\n<li style=\"margin-left: 18pt; \">\n\t\tNa t\u011bsno ulo\u017een&eacute; tepeln&eacute; izolace<\/li>\n<\/ul>\n<p>\n\t<strong>Hlavn&iacute; p\u016fsoben&iacute; funguj&iacute;c&iacute;ho odv\u011btr&aacute;n&iacute;:<\/strong><\/p>\n<p>\n\t<strong>Obsah vlhkosti ve vn\u011bj&scaron;&iacute;m vzduchu<\/strong><\/p>\n<p>\n\tV z&aacute;vislosti na obsahu vlhkosti ve vn\u011bj&scaron;&iacute;m vzduchu, kter&yacute; proud&iacute; dovnit\u0159, m\u016f\u017ee doch&aacute;zet p\u0159i stejn&eacute;m objemu vzduchu k odv\u011btr&aacute;n&iacute; r\u016fzn&yacute;ch objem\u016f vlhkosti.<\/p>\n<p>\n\t<strong>Proud\u011bn&iacute; vzduchu<\/strong><\/p>\n<p>\n\tJe t\u0159eba navrhovat pokud mo\u017eno p\u0159&iacute;m&eacute; v\u011btran&eacute; mezery bez jak&yacute;chkoliv omezen&iacute;.<\/p>\n<p>\n\t<strong>Zah\u0159&aacute;t&iacute; proudu vzduchu zbytkov&yacute;m teplem zevnit\u0159 budovy<\/strong><\/p>\n<p>\n\tSe zlep&scaron;enou kvalitou izola\u010dn&iacute;ch materi&aacute;l\u016f, jejich st&aacute;le v\u011bt&scaron;&iacute; tlou&scaron;\u0165kou a z toho vypl&yacute;vaj&iacute;c&iacute; lep&scaron;&iacute; tepelnou ochranou doch&aacute;z&iacute; ke st&aacute;le men&scaron;&iacute;mu prostupu &bdquo;tepla&ldquo; do v\u011btran&eacute; mezery. T&iacute;m odpad&aacute; faktor, kter&yacute; bylo v minulosti nutno zohlednit v dimenzov&aacute;n&iacute; v\u011btran&eacute; mezery.<\/p>\n<p>\n\t<strong>Tlou&scaron;\u0165ka v\u011btran&eacute; mezery<\/strong><\/p>\n<p>\n\tV z&aacute;vislosti na sklonu konstrukce je nutno dodr\u017eet minim&aacute;ln&iacute; tlou&scaron;\u0165ky v\u011btran&eacute; mezery.<\/p>\n<p>\n\t<strong>Tabulka 1:<\/strong><\/p>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width: 500px\">\n<tbody>\n<tr>\n<td>\n\t\t\t\tSklon<\/td>\n<td>\n\t\t\t\tTlou&scaron;\u0165ka vzduchov&eacute; mezery<\/td>\n<td>\n\t\t\t\tVelikost p\u0159iv&aacute;d\u011bc&iacute;ho otvoru ve vztahu ke st\u0159e&scaron;n&iacute; plo&scaron;e<\/td>\n<td>\n\t\t\t\tVelikost odv&aacute;d\u011bc&iacute;ho otvoru ve vztahu ke st\u0159e&scaron;n&iacute; plo&scaron;e<\/td>\n<\/tr>\n<tr>\n<td>\n\t\t\t\t&ge;3&deg; &le;20&deg;<\/td>\n<td>\n\t\t\t\t100 mm<\/td>\n<td>\n\t\t\t\t1\/500<\/td>\n<td>\n\t\t\t\t1\/400<\/td>\n<\/tr>\n<tr>\n<td>\n\t\t\t\t&gt;20&deg;<\/td>\n<td>\n\t\t\t\t50 mm<\/td>\n<td>\n\t\t\t\t1\/500<\/td>\n<td>\n\t\t\t\t1\/400<\/td>\n<\/tr>\n<tr>\n<td>\n\t\t\t\t&ge;3&deg; &le;10&deg;<\/td>\n<td>\n\t\t\t\t100 mm p\u0159&iacute;\u010dn&eacute; v\u011btr&aacute;n&iacute;<\/td>\n<td>\n\t\t\t\t&nbsp;<\/td>\n<td>\n\t\t\t\t&nbsp;<\/td>\n<\/tr>\n<tr>\n<td>\n\t\t\t\tFas&aacute;da&nbsp; 90&deg;<\/td>\n<td>\n\t\t\t\t20 mm<\/td>\n<td>\n\t\t\t\t1\/100<\/td>\n<td>\n\t\t\t\t1\/800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n\t&nbsp;<\/p>\n<p>\n\t<strong>D&eacute;lka v\u011btran&eacute; mezery<\/strong><\/p>\n<p>\n\tJestli\u017ee p\u0159evy&scaron;uje d&eacute;lka v\u011btran&eacute; mezery cca 15 m, m\u016f\u017ee proud\u011bn&iacute; vzduchu t\u0159en&iacute;m o soused&iacute;c&iacute; konstrukce zaniknout. Jestli\u017ee jsou navr\u017eeny velk&eacute; osov&eacute; vzd&aacute;lenosti krokv&iacute;, m\u011bly by se rozd\u011blit do jednotliv&yacute;ch v\u011btrac&iacute;ch &uacute;sek\u016f.<\/p>\n<p>\n\t<strong>Sklon konstrukce<\/strong><\/p>\n<p>\n\tJak je zn&aacute;zorn\u011bno v <em>tabulce 1<\/em>, m&aacute; sklon st\u0159echy projektovan&eacute; konstrukce rozhoduj&iacute;c&iacute; vliv na funkci prov\u011btr&aacute;v&aacute;n&iacute;. Je t\u0159eba d&aacute;t pozor na to, aby byly zm\u011bny sklon\u016f zahrnuty do konstrukce v\u011btrac&iacute; mezery.<\/p>\n<p>\n\t<strong>Otvory pro p\u0159iv&aacute;d\u011bn&yacute; a odv&aacute;d\u011bn&yacute; vzduch<\/strong><\/p>\n<p>\n\tOtvory pro odv&aacute;d\u011bn&iacute; vzduchu se navrhuj&iacute; v\u017edy v nejvy&scaron;&scaron;&iacute;m m&iacute;st\u011b a nas&aacute;vac&iacute; otvory na spodu v\u011btran&eacute; mezry, aby byla dosa\u017eena co mo\u017en&aacute; nejvy&scaron;&scaron;&iacute; &uacute;\u010dinn&aacute; v&yacute;&scaron;ka.<\/p>\n<p>\n\tOtvory maj&iacute; b&yacute;t provedeny jako pr\u016fb\u011b\u017en&eacute; dr&aacute;\u017eky, proto\u017ee jednotliv&eacute; otvory vykazuj&iacute; p\u0159i stejn&eacute;m pr\u016f\u0159ezu pro odv\u011btr&aacute;v&aacute;n&iacute; hor&scaron;&iacute; &uacute;\u010dinnost. Jestli\u017ee se pou\u017eij&iacute; z d\u016fvodu ochrany p\u0159ed hmyzem v\u011btrac&iacute; m\u0159&iacute;\u017eky, potom je t\u0159eba zajistit, aby m\u011bl zb&yacute;vaj&iacute;c&iacute; pr\u016f\u0159ez pot\u0159ebnou velikost pro odv\u011btr&aacute;n&iacute;. Jinak je t\u0159eba zv\u011bt&scaron;it rozm\u011bry v&yacute;\u0159ezu pro odv\u011btr&aacute;v&aacute;n&iacute;.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Konstrukce st\u0159ech a st\u011bn odv\u011btr&aacute;van&yacute;ch vzduchovou mezerou pod kryc&iacute; vrstvou maj&iacute; odv&aacute;d\u011bt na z&aacute;klad\u011b funguj&iacute;c&iacute;ho pohybu vzduchu vlhkost proniklou do konstrukce pomoc&iacute; otvor\u016f pro p\u0159iv&aacute;d\u011bn&yacute; a odv&aacute;d\u011bn&yacute; vzduch. Aby se zajistila bezpe\u010dn&aacute; a spolehliv&aacute; funkce odv\u011btr&aacute;van&eacute; konstrukce, je nutn&eacute; dodr\u017eet n\u011bkter&eacute; p\u0159edpoklady: &nbsp;V\u011btran&aacute; mezera nem\u016f\u017ee vyrovnat pochyben&iacute; vznikl&aacute; p\u0159i zaji&scaron;t\u011bn&iacute; vzduchut\u011bsnosti cel&eacute; konstrukce Je [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":30781,"menu_order":780,"comment_status":"closed","ping_status":"closed","template":"template-import.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-30844","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 s odv\u011btr\u00e1n\u00edm 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-s-odvetranim-zezadu\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Konstrukce s odv\u011btr\u00e1n\u00edm zezadu \u2013 NedZink\" \/>\n<meta property=\"og:description\" content=\"&nbsp; Konstrukce st\u0159ech a st\u011bn odv\u011btr&aacute;van&yacute;ch vzduchovou mezerou pod kryc&iacute; vrstvou maj&iacute; odv&aacute;d\u011bt na z&aacute;klad\u011b funguj&iacute;c&iacute;ho pohybu vzduchu vlhkost proniklou do konstrukce pomoc&iacute; otvor\u016f pro p\u0159iv&aacute;d\u011bn&yacute; a odv&aacute;d\u011bn&yacute; vzduch. Aby se zajistila bezpe\u010dn&aacute; a spolehliv&aacute; funkce odv\u011btr&aacute;van&eacute; konstrukce, je nutn&eacute; dodr\u017eet n\u011bkter&eacute; p\u0159edpoklady: &nbsp;V\u011btran&aacute; mezera nem\u016f\u017ee vyrovnat pochyben&iacute; vznikl&aacute; p\u0159i zaji&scaron;t\u011bn&iacute; vzduchut\u011bsnosti cel&eacute; konstrukce Je [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/\" \/>\n<meta property=\"og:site_name\" content=\"NedZink\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/\",\"url\":\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/\",\"name\":\"Konstrukce s odv\u011btr\u00e1n\u00edm zezadu \u2013 NedZink\",\"isPartOf\":{\"@id\":\"https:\/\/www.nedzink.com\/cs\/#website\"},\"datePublished\":\"2019-06-04T12:54:53+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.nedzink.com\/cs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Nosn\u00e9 konstrukce\",\"item\":\"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Konstrukce s odv\u011btr\u00e1n\u00edm zezadu\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.nedzink.com\/cs\/#website\",\"url\":\"https:\/\/www.nedzink.com\/cs\/\",\"name\":\"NedZink\",\"description\":\"Zink fabrikant\",\"publisher\":{\"@id\":\"https:\/\/www.nedzink.com\/cs\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.nedzink.com\/cs\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.nedzink.com\/cs\/#organization\",\"name\":\"NedZink\",\"url\":\"https:\/\/www.nedzink.com\/cs\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/www.nedzink.com\/cs\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.nedzink.com\/wp-content\/uploads\/2019\/08\/logo-nedzink_fc_zk.jpg\",\"contentUrl\":\"https:\/\/www.nedzink.com\/wp-content\/uploads\/2019\/08\/logo-nedzink_fc_zk.jpg\",\"width\":2160,\"height\":688,\"caption\":\"NedZink\"},\"image\":{\"@id\":\"https:\/\/www.nedzink.com\/cs\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Konstrukce s odv\u011btr\u00e1n\u00edm zezadu \u2013 NedZink","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.nedzink.com\/cs\/nosne-konstrukce\/konstrukce-s-odvetranim-zezadu\/","og_locale":"cs_CZ","og_type":"article","og_title":"Konstrukce s odv\u011btr\u00e1n\u00edm zezadu \u2013 NedZink","og_description":"&nbsp; Konstrukce st\u0159ech a st\u011bn odv\u011btr&aacute;van&yacute;ch vzduchovou mezerou pod kryc&iacute; vrstvou maj&iacute; odv&aacute;d\u011bt na z&aacute;klad\u011b funguj&iacute;c&iacute;ho pohybu vzduchu vlhkost proniklou do konstrukce pomoc&iacute; otvor\u016f pro p\u0159iv&aacute;d\u011bn&yacute; a odv&aacute;d\u011bn&yacute; vzduch. 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