[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.grafica.sk\/vyhody-chladnych-striech-pocas-horucav\/#Article","mainEntityOfPage":"https:\/\/www.grafica.sk\/vyhody-chladnych-striech-pocas-horucav\/","headline":"V\u00fdhody chladn\u00fdch striech po\u010das hor\u00fa\u010dav","name":"V\u00fdhody chladn\u00fdch striech po\u010das hor\u00fa\u010dav","description":"U\u017e d\u00e1vnej\u0161ie bolo dok\u00e1zan\u00e9, \u017ee strechy s bielym povrchom dok\u00e1\u017eu zn\u00ed\u017ei\u0165 efekt mestsk\u00e9ho tepeln\u00e9ho ostrova t\u00fdm, \u017ee odr\u00e1\u017eaj\u00fa sveteln\u00fa energiu sp\u00e4\u0165 do vesm\u00edra, a tak redukuj\u00fa teplotu v mest\u00e1ch. Veci z N\u00e1rodn\u00e9ho laborat\u00f3ria Lawrence Berkeley, ktor\u00ed vo svojom v\u00fdskume sk\u00famali \u010d\u00ednske mesto Kanton, zistili, \u017ee po\u010das hor\u00fa\u010dav je tento efekt e\u0161te omnoho v\u00fdraznej\u0161\u00ed. Reflekt\u00edvne strechy, […]","datePublished":"2017-05-29","dateModified":"2023-04-26","author":{"@type":"Person","@id":"https:\/\/www.grafica.sk\/author\/#Person","name":"","url":"https:\/\/www.grafica.sk\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/f3f77307dfb7a1a6ad06d8ef95ed6ed296a0507575d3814dc8c8630c3a7fa477?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/f3f77307dfb7a1a6ad06d8ef95ed6ed296a0507575d3814dc8c8630c3a7fa477?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"grafica.sk","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.grafica.sk\/wp-content\/uploads\/img_a281927_w2040_t1501322836.jpg","url":"https:\/\/www.grafica.sk\/wp-content\/uploads\/img_a281927_w2040_t1501322836.jpg","height":0,"width":0},"url":"https:\/\/www.grafica.sk\/vyhody-chladnych-striech-pocas-horucav\/","about":["Technika"],"wordCount":372,"articleBody":"U\u017e d\u00e1vnej\u0161ie bolo dok\u00e1zan\u00e9, \u017ee strechy s bielym povrchom dok\u00e1\u017eu zn\u00ed\u017ei\u0165 efekt mestsk\u00e9ho tepeln\u00e9ho ostrova t\u00fdm, \u017ee odr\u00e1\u017eaj\u00fa sveteln\u00fa energiu sp\u00e4\u0165 do vesm\u00edra, a tak redukuj\u00fa teplotu v mest\u00e1ch. Veci z N\u00e1rodn\u00e9ho laborat\u00f3ria Lawrence Berkeley, ktor\u00ed vo svojom v\u00fdskume sk\u00famali \u010d\u00ednske mesto Kanton, zistili, \u017ee po\u010das hor\u00fa\u010dav je tento efekt e\u0161te omnoho v\u00fdraznej\u0161\u00ed. Reflekt\u00edvne strechy, takzvan\u00e9 chladn\u00e9 strechy, \u0161etria energiami t\u00fdm, \u017ee udr\u017eiavaj\u00fa strechy omnoho chladnej\u0161\u00edmi aj bez ak\u00e9jko\u013evek klimatiz\u00e1cie.V\u00a0novej \u0161t\u00fadii vedci dali do s\u00favislosti region\u00e1lny klimatick\u00fd model s\u00a0mestsk\u00fdm modelom, ktor\u00fd vedcom umo\u017enil pozmeni\u0165 odr\u00e1\u017eanie svetla od striech Do\u0161lo k zisteniu, \u017ee priemern\u00e1 mestsk\u00e1 denn\u00e1 teplota sa po\u010das hor\u00fa\u010dav zn\u00ed\u017eila o\u00a01,2 \u00b0C, \u010do je o\u00a050 % viac, ne\u017e o\u00a0ko\u013eko sa zn\u00ed\u017eila po\u010das be\u017en\u00e9ho letn\u00e9ho d\u0148a (0,8 \u00b0C).\u00a0\u00a0\u00a0Vedci zistili, \u00a0\u017ee \u010d\u00edm je teplej\u0161ie, t\u00fdm efekt\u00edvnej\u0161ie dok\u00e1\u017ee budovu takzvan\u00e1 chladn\u00e1 strecha ochladi\u0165. Ide o\u00a0v\u00fdrazn\u00fd rozdiel, za ktor\u00fd m\u00f4\u017ee hlavne fakt, \u017ee po\u010das hor\u00fa\u010dav sa nad mestom dr\u017e\u00ed st\u00e1le ten ist\u00fd, stojat\u00fd vzduch.\u00a0\u00a0\u00a0R\u00fdchlo sa zohrievaj\u00face povrchy, ako napr\u00edklad tmav\u00e9 strechy, ohrievaj\u00fa okolit\u00fd vzduch a\u00a0vytv\u00e1raj\u00fa tak efekt mestsk\u00e9ho tepeln\u00e9ho ostrova. Chladn\u00e9 strechy dok\u00e1\u017eu v\u00fdrazne zn\u00ed\u017ei\u0165 spotrebu energie a\u00a0emisie sklen\u00edkov\u00fdch plynov v\u00a0podnebiach s\u00a0vy\u0161\u0161\u00edmi teplotami v letnom obdob\u00ed.\u00a0\u00a0V\u00fdskum hor\u00fa\u010dav je d\u00f4le\u017eit\u00fd nielen pre energetiku, ale aj pre zdravie, ke\u010f\u017ee hor\u00fa\u010davy s\u00fa pre viacer\u00fdch \u013eud\u00ed ve\u013ek\u00fdm zdravotn\u00fdm rizikom.\u00a0\u00a0V\u00a0r\u00e1mci svojej \u0161t\u00fadie vedci nasimulovali v\u0161etky strechy mesta s\u00a0\u00farov\u0148ou reflektivity (odrazivosti) zodpovedaj\u00facou star\u0161ej bielej streche. Pre v\u00fdskum je nevyhnutn\u00e9, aby prezentoval \u0161tatisticky v\u00fdznamn\u00e9 sign\u00e1ly. Vedec Millstein z v\u00fdskumu dodal, \u017ee \u013eudia nemusia strechy vymie\u0148a\u0165 okam\u017eite \u2013 ak v\u0161ak bude raz ich strecha predsa len potrebova\u0165 v\u00fdmenu, stoj\u00ed za to zamyslie\u0165 sa nad chladnou strechou, ktor\u00e1 je be\u017ene finan\u010dne dostupnou alternat\u00edvou ako drah\u0161ia klasick\u00e1 strecha.                                                                                                                                                                                                                                                                                                                                                                                        3.8\/5 - (12 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"V\u00fdhody chladn\u00fdch striech po\u010das hor\u00fa\u010dav","item":"https:\/\/www.grafica.sk\/vyhody-chladnych-striech-pocas-horucav\/#breadcrumbitem"}]}]