{"id":969,"date":"2026-07-14T09:59:49","date_gmt":"2026-07-14T07:59:49","guid":{"rendered":"https:\/\/alkytoneurope.eu\/cz\/?p=969"},"modified":"2026-07-14T09:59:49","modified_gmt":"2026-07-14T07:59:49","slug":"rozdil-mezi-zarubnemi-drevo-kov-udrzba","status":"publish","type":"post","link":"https:\/\/alkytoneurope.eu\/cz\/rozdil-mezi-zarubnemi-drevo-kov-udrzba\/","title":{"rendered":"Rozd\u00edl mezi z\u00e1rubn\u011bmi: kter\u00e9 v\u00e1m daj\u00ed m\u00e9n\u011b pr\u00e1ce \u2013 d\u0159ev\u011bn\u00e9, nebo kovov\u00e9?"},"content":{"rendered":"

Pokud chcete z\u00e1rubn\u011b s men\u0161\u00ed pravidelnou \u00fadr\u017ebou, ve v\u011bt\u0161in\u011b b\u011b\u017en\u00fdch podm\u00ednek vych\u00e1zej\u00ed l\u00e9pe kovov\u00e9. Jsou pevn\u011bj\u0161\u00ed a rozm\u011brov\u011b stabiln\u011bj\u0161\u00ed, po\u0161kozen\u00fd n\u00e1t\u011br je v\u0161ak t\u0159eba rychle opravit, aby neza\u010daly korodovat. D\u0159ev\u011bn\u00e9 nebo d\u0159evovl\u00e1knit\u00e9 z\u00e1rubn\u011b p\u016fsob\u00ed p\u0159irozen\u011bji, ale citliv\u011bji reaguj\u00ed na vlhkost a po\u0161kozen\u00ed povrchu.<\/span><\/p>\n


\n<\/span>Skute\u010dn\u00fd rozd\u00edl se proto neprojev\u00ed pouze p\u0159i n\u00e1kupu, ale p\u0159edev\u0161\u00edm v tom, kolik pr\u00e1ce a pen\u011bz si z\u00e1rubn\u011b vy\u017e\u00e1daj\u00ed b\u011bhem dal\u0161\u00edch let. Pod\u00edvejme se, co jednotliv\u00e9 materi\u00e1ly ni\u010d\u00ed, jak se opravuj\u00ed a kdy se renovace je\u0161t\u011b vyplat\u00ed.<\/span><\/p>\n

Z\u00e1kladn\u00ed rozd\u00edl mezi z\u00e1rubn\u011bmi<\/b><\/h2>\n

D\u0159evo a kov reaguj\u00ed na sv\u00e9 okol\u00ed \u00fapln\u011b jinak. D\u0159ev\u011bn\u00e1 z\u00e1rube\u0148 \u017eije s vlhkost\u00ed. Kdy\u017e je vzduch vlhk\u00fd, nas\u00e1v\u00e1 vodu a pracuje. Kdy\u017e je such\u00fd, smr\u0161\u0165uje se. Pr\u00e1v\u011b to \u010dasem naru\u0161uje n\u00e1t\u011bry a uvol\u0148uje spoje.<\/span><\/p>\n

Kovov\u00e1 z\u00e1rube\u0148 se neh\u00fdbe. Je tvrd\u00e1, rozm\u011brov\u011b st\u00e1l\u00e1 a snese po\u0159\u00e1dn\u00fd n\u00e1raz. M\u00e1 ale jednoho nep\u0159\u00edtele, kter\u00fd d\u0159evo netr\u00e1p\u00ed, a t\u00edm je rez.<\/span><\/p>\n


\n<\/span>Z hlediska \u017eivotnosti nem\u00e1 smysl pt\u00e1t se, kter\u00fd materi\u00e1l je lep\u0161\u00ed. D\u0159ev\u011bn\u00e1 z\u00e1rube\u0148 s poctivou \u00fadr\u017ebou vydr\u017e\u00ed des\u00edtky let. Kovov\u00e1 tak\u00e9, pokud ji ochr\u00e1n\u00edte p\u0159ed koroz\u00ed. Rozhoduje to, zda jste ochotni prov\u00e1d\u011bt spr\u00e1vnou \u00fadr\u017ebu podle dan\u00e9ho materi\u00e1lu.<\/span><\/p>\n

\u00dadr\u017eba d\u0159ev\u011bn\u00fdch z\u00e1rubn\u00ed<\/b><\/h2>\n

Ne ka\u017ed\u00e1 z\u00e1rube\u0148, kter\u00e1 vypad\u00e1 jako d\u0159ev\u011bn\u00e1, je vyrobena z masivn\u00edho d\u0159eva. Mnoh\u00e9 modern\u00ed oblo\u017ekov\u00e9 z\u00e1rubn\u011b jsou z MDF, d\u0159evot\u0159\u00edsky nebo d\u0159evopolymern\u00edho kompozitu. Jednotliv\u00e9 materi\u00e1ly p\u0159itom reaguj\u00ed na vodu rozd\u00edln\u011b. V\u00fdrobci nap\u0159\u00edklad rozli\u0161uj\u00ed standardn\u00ed MDF, MDF odolnou proti vlhkosti a vodot\u011bsn\u00e1 kompozitn\u00ed \u0159e\u0161en\u00ed.<\/span><\/p>\n


\n<\/span>D\u0159ev\u011bnou z\u00e1rube\u0148 ni\u010d\u00ed voda a mechanick\u00e9 opot\u0159eben\u00ed. Nej\u010dast\u011bj\u0161\u00ed probl\u00e9my pozn\u00e1te na prvn\u00ed pohled: odlupuj\u00edc\u00ed se lak nebo barva, tmav\u00e9 skvrny od vlhkosti, nabobtnal\u00e1 m\u00edsta u podlahy a zat\u00e9kaj\u00edc\u00ed rohy. V koupeln\u011b a u vchodu k tomu doch\u00e1z\u00ed rychleji ne\u017e v such\u00e9m ob\u00fdvac\u00edm pokoji.<\/span><\/p>\n


\n<\/span>Nejnebezpe\u010dn\u011bj\u0161\u00ed je hniloba. Za\u010d\u00edn\u00e1 nen\u00e1padn\u011b ve spodn\u00ed \u010d\u00e1sti z\u00e1rubn\u011b, kde se dr\u017e\u00ed vlhkost z myt\u00ed podlahy. Ne\u017e si j\u00ed v\u0161imnete, d\u0159evo u\u017e je m\u011bkk\u00e9 a samotn\u00e1 oprava z\u00e1rubn\u00ed je podstatn\u011b n\u00e1ro\u010dn\u011bj\u0161\u00ed.<\/span><\/p>\n


\n<\/span>\u00dadr\u017eba d\u0159ev\u011bn\u00e9 z\u00e1rubn\u011b nen\u00ed \u017e\u00e1dn\u00e1 v\u011bda, jen je t\u0159eba ji prov\u00e1d\u011bt. Jednou ro\u010dn\u011b z\u00e1rube\u0148 d\u016fkladn\u011b prohl\u00e9dn\u011bte, zejm\u00e9na spodn\u00ed rohy a okol\u00ed pant\u016f. Drobn\u00e9 od\u011brky a praskliny v n\u00e1t\u011bru p\u0159ebruste a p\u0159et\u0159ete d\u0159\u00edve, ne\u017e se p\u0159es n\u011b dostane vlhkost do d\u0159eva. Lakovan\u00fd nebo nat\u0159en\u00fd povrch obnovte p\u0159ibli\u017en\u011b ka\u017ed\u00e9 t\u0159i a\u017e p\u011bt let podle toho, jak je nam\u00e1han\u00fd.<\/span><\/p>\n

 <\/p>\n\"\"\n

\u00dadr\u017eba kovov\u00fdch z\u00e1rubn\u00ed<\/b><\/h2>\n

Kovov\u00e1 z\u00e1rube\u0148 d\u00e1 m\u00e9n\u011b ka\u017edodenn\u00ed pr\u00e1ce, ale kdy\u017e zanedb\u00e1te ochranu, n\u00e1sledky jsou dra\u017e\u0161\u00ed. \u0158e\u010d je o korozi. Nej\u010dast\u011bji se objev\u00ed tam, kde je poru\u0161en\u00fd n\u00e1t\u011br: u pant\u016f, na hran\u00e1ch a v m\u00edstech po n\u00e1razu voz\u00edku nebo n\u00e1bytku.<\/span><\/p>\n


\n<\/span>Princip ochrany je jednoduch\u00fd. Kov pot\u0159ebuje souvislou vrstvu, kter\u00e1 ho odd\u011bl\u00ed od vzduchu a vlhkosti. Jakmile se tato vrstva p\u0159eru\u0161\u00ed, rez si najde cestu. Proto jsou kovov\u00e9 z\u00e1rubn\u011b p\u0159edev\u0161\u00edm o jedn\u00e9 v\u011bci: udr\u017eet n\u00e1t\u011br neporu\u0161en\u00fd a v\u010das opravit ka\u017ed\u00fd \u0161kr\u00e1banec.<\/span><\/p>\n


\n<\/span>U vstupn\u00edch a sklepn\u00edch z\u00e1rubn\u00ed, kter\u00e9 jsou vystaveny vlhkosti \u010di pov\u011btrnostn\u00edm vliv\u016fm, s\u00e1hn\u011bte po kvalitn\u00edm antikorozn\u00edm n\u00e1t\u011bru. <\/span>Venkovn\u00ed barva na kov<\/b><\/a> mus\u00ed sn\u00e9st teplotn\u00ed v\u00fdkyvy i vlhkost, ani\u017e by praskala a odlupovala se. Na exponovan\u00fdch m\u00edstech se vyplat\u00ed <\/span>venkovn\u00ed antikorozn\u00ed barva na kov<\/b><\/a>, kter\u00e1 p\u0159\u00edmo chr\u00e1n\u00ed a z\u00e1rove\u0148 p\u0159ekryje i m\u00edrnou rez.<\/span><\/p>\n


\n<\/span>Kdy zas\u00e1hnout? Hned, jak uvid\u00edte prvn\u00ed hn\u011bdou skvrnu. Koroze nepo\u010dk\u00e1, a\u017e se k n\u00ed dostanete, pracuje i p\u0159es zimu. Drobnou rez o\u010dist\u011bte, odmast\u011bte a p\u0159et\u0159ete, ne\u010dekejte do dal\u0161\u00ed sez\u00f3ny.<\/span><\/p>\n

Zde se hod\u00ed kvalitn\u00ed <\/span>barva na z\u00e1rubn\u011b<\/b><\/a>, kter\u00e1 funguje jako z\u00e1kladn\u00ed i vrchn\u00ed n\u00e1t\u011br v jednom (2v1) a lze ji nan\u00e9st p\u0159\u00edmo na rez. Na siln\u011bji zkorodovan\u00fdch m\u00edstech nejprve pou\u017eijte <\/span>antikorozn\u00ed z\u00e1klad<\/b><\/a> a a\u017e pot\u00e9 vrchn\u00ed n\u00e1t\u011br. P\u0159i kontrole dodr\u017eujte interval alespo\u0148 jednou ro\u010dn\u011b, ide\u00e1ln\u011b na podzim p\u0159ed zimou.<\/span><\/p>\n

 <\/p>\n\"\"\n

Oprava z\u00e1rubn\u00ed a renovace dve\u0159\u00ed a z\u00e1rubn\u00ed<\/b><\/h2>\n

Oprava z\u00e1rubn\u00ed vypad\u00e1 u d\u0159eva a kovu jinak, p\u0159esto\u017ee c\u00edl je stejn\u00fd: vr\u00e1tit povrchu ochranu a vzhled.<\/span><\/p>\n


\n<\/span>U d\u0159ev\u011bn\u00e9 z\u00e1rubn\u011b opravujete p\u0159edev\u0161\u00edm nabobtnal\u00e1 a odloupnut\u00e1 m\u00edsta. Po\u0161kozen\u00fd n\u00e1t\u011br obrous\u00edte, popraskan\u00e9 spoje zatmel\u00edte tmelem na d\u0159evo a po zaschnut\u00ed p\u0159ebrous\u00edte a p\u0159et\u0159ete. Pokud je d\u0159evo nahnil\u00e9 jen lok\u00e1ln\u011b, lze ho vy\u0159\u00edznout a doplnit. Kdy\u017e je hniloba rozs\u00e1hl\u00e1, oprava p\u0159est\u00e1v\u00e1 d\u00e1vat smysl.<\/span><\/p>\n


\n<\/span>U kovov\u00e9 z\u00e1rubn\u011b je postup p\u0159\u00edmo\u010da\u0159ej\u0161\u00ed. Odlupuj\u00edc\u00ed se n\u00e1t\u011br a rez odstran\u00edte dr\u00e1t\u011bn\u00fdm kart\u00e1\u010dem nebo brusn\u00fdm pap\u00edrem, povrch odmast\u00edte a nech\u00e1te vyschnout. Pot\u00e9 nanesete antikorozn\u00ed n\u00e1t\u011br. S p\u0159et\u0159en\u00edm neot\u00e1lejte.<\/span><\/p>\n


\n<\/span>Renovace dve\u0159\u00ed a z\u00e1rubn\u00ed je o stupe\u0148 v\u011bt\u0161\u00ed z\u00e1sah ne\u017e b\u011b\u017en\u00e1 oprava. T\u00fdk\u00e1 se cel\u00e9ho kompletu v\u010detn\u011b dve\u0159\u00ed a kov\u00e1n\u00ed. A zde v\u011bt\u0161ina lid\u00ed \u0159e\u0161\u00ed jednu ot\u00e1zku: renovovat, nebo vym\u011bnit?<\/span><\/p>\n

Renovace se vyplat\u00ed, kdy\u017e je konstrukce zdrav\u00e1. D\u0159ev\u011bn\u00e1 z\u00e1rube\u0148 bez hniloby a kovov\u00e1 bez prorezav\u011bn\u00ed a\u017e na d\u00edru jsou dobr\u00fdmi kandid\u00e1ty na obnovu. Sta\u010d\u00ed p\u0159\u00edprava povrchu a kvalitn\u00ed n\u00e1t\u011br a m\u00e1te je jako nov\u00e9 za zlomek ceny, kterou byste zaplatili za kompletn\u00ed v\u00fdm\u011bnu. V\u00fdm\u011bna se vyplat\u00ed tehdy, kdy\u017e je materi\u00e1l naru\u0161en\u00fd do hloubky: prohnil\u00e9 d\u0159evo nebo kov prorezav\u011bl\u00fd skrz na skrz. V takov\u00e9m p\u0159\u00edpad\u011b byste do renovace investovali pen\u00edze, kter\u00e9 v\u00e1m stejn\u011b nevr\u00e1t\u00ed pevnost.<\/span><\/p>\n\"\"\n\"\"\n

Nej\u010dast\u011bj\u0161\u00ed chyby p\u0159i \u00fadr\u017eb\u011b<\/b><\/h2>\n
    \n
  • \u010cek\u00e1n\u00ed, dokud nen\u00ed probl\u00e9m viditeln\u00fd i z d\u00e1lky<\/b>. Malou rez nebo odloupnut\u00fd lak vy\u0159e\u0161\u00edte za hodinu, prorezav\u011blou nebo prohnilou z\u00e1rube\u0148 za podstatn\u011b v\u00edce.<\/span><\/li>\n
  • Nat\u00edr\u00e1n\u00ed bez p\u0159\u00edpravy povrchu<\/b>. Barva nanesen\u00e1 na mastnotu, prach nebo nedr\u017e\u00edc\u00ed starou vrstvu se odloupne, a\u0165 je jakkoli kvalitn\u00ed.<\/span><\/li>\n
  • Nevhodn\u00fd n\u00e1t\u011br do exteri\u00e9ru.<\/b> Interi\u00e9rov\u00e1 barva na venkovn\u00ed kovov\u00e9 z\u00e1rubni dlouho nevydr\u017e\u00ed.<\/span><\/li>\n
  • P\u0159et\u00edr\u00e1n\u00ed rzi m\u00edsto jej\u00edho odstran\u011bn\u00ed.<\/b> Koroze pod novou vrstvou pokra\u010duje d\u00e1l a po \u010dase ji vytla\u010d\u00ed.<\/span><\/li>\n
  • Ignorov\u00e1n\u00ed spodn\u00edch roh\u016f d\u0159ev\u011bn\u00e9 z\u00e1rubn\u011b<\/b>. Pr\u00e1v\u011b tam se dr\u017e\u00ed vlhkost a za\u010d\u00edn\u00e1 hniloba.<\/span><\/li>\n<\/ul>\n\"\"\n

    Kontroln\u00ed seznam \u00fadr\u017eby z\u00e1rubn\u00ed<\/b><\/h2>\n
      \n
    • Jednou ro\u010dn\u011b prohl\u00e9dn\u011bte v\u0161echny z\u00e1rubn\u011b, zejm\u00e9na spodn\u00ed rohy, panty a hrany.<\/span><\/li>\n
    • U d\u0159ev\u011bn\u00e9 z\u00e1rubn\u011b hledejte odloupnut\u00fd lak, tmav\u00e9 skvrny a nabobtnal\u00e1 m\u00edsta.<\/span><\/li>\n
    • U kovov\u00e9 z\u00e1rubn\u011b hledejte prvn\u00ed hn\u011bd\u00e9 skvrny, puch\u00fd\u0159e pod barvou a odlupuj\u00edc\u00ed se n\u00e1t\u011br.<\/span><\/li>\n
    • Drobn\u00e1 po\u0161kozen\u00ed opravte ihned, ne\u010dekejte na dal\u0161\u00ed sez\u00f3nu.<\/span><\/li>\n
    • P\u0159ed nat\u00edr\u00e1n\u00edm povrch v\u017edy o\u010dist\u011bte, odmast\u011bte a nechte vyschnout.<\/span><\/li>\n
    • Obnovu n\u00e1t\u011bru napl\u00e1nujte podle materi\u00e1lu a nam\u00e1h\u00e1n\u00ed, ide\u00e1ln\u011b p\u0159ed zimou.<\/span><\/li>\n<\/ul>\n

      Kter\u00e9 \u0159e\u0161en\u00ed se vyplat\u00ed v\u00edce?<\/b><\/h2>\n

      D\u0159ev\u011bn\u00e1 z\u00e1rube\u0148 je spr\u00e1vnou volbou, pokud v\u00e1m z\u00e1le\u017e\u00ed na tepl\u00e9m, p\u0159\u00edrodn\u00edm vzhledu a jste ochotni v\u011bnovat j\u00ed pravidelnou p\u00e9\u010di. Hod\u00ed se do su\u0161\u0161\u00edch interi\u00e9r\u016f a pro lidi, kte\u0159\u00ed nemaj\u00ed probl\u00e9m jednou za n\u011bkolik let s\u00e1hnout po brusn\u00e9m pap\u00edru a \u0161t\u011btci.<\/span>
      \n<\/span>Kovov\u00e1 z\u00e1rube\u0148 se vyplat\u00ed tam, kde chcete pevnost, rozm\u011brovou st\u00e1lost a m\u00e9n\u011b \u010dast\u00e9 z\u00e1sahy. Je vhodn\u00e1 u vstup\u016f, ve sklepech, d\u00edln\u00e1ch a v\u0161ude, kde schyt\u00e1 n\u00e1raz. Podm\u00ednka je jedin\u00e1: udr\u017eet antikorozn\u00ed ochranu. Kdy\u017e ji spln\u00edte, kovov\u00e9 z\u00e1rubn\u011b v\u00e1m daj\u00ed m\u00e9n\u011b pr\u00e1ce ne\u017e d\u0159ev\u011bn\u00e9.<\/span><\/p>\n

      Z\u00e1v\u011br<\/b><\/h2>\n

      Rozd\u00edl mezi z\u00e1rubn\u011bmi se nakonec smrskne na jednu v\u011bc: zda prov\u00e1d\u00edte \u00fadr\u017ebu, kterou dan\u00fd materi\u00e1l pot\u0159ebuje. D\u0159evo odm\u011bn\u00ed pravidelnou p\u00e9\u010di. Kov odm\u011bn\u00ed v\u010dasnou ochranu p\u0159ed rz\u00ed.<\/span>
      \n<\/span>Zkontrolujte sv\u00e9 z\u00e1rubn\u011b je\u0161t\u011b letos. Hodina s brusn\u00fdm pap\u00edrem a dobr\u00fdm n\u00e1t\u011brem je\u0161t\u011b dnes v\u00e1m u\u0161et\u0159\u00ed v\u00fdm\u011bnu za n\u011bkolik let.<\/span><\/p>\n

      \u010casto kladen\u00e9 ot\u00e1zky<\/b><\/h2>\n

      Jak \u010dasto m\u00e1m kontrolovat z\u00e1rubn\u011b?<\/b><\/p>\n

      Alespo\u0148 jednou ro\u010dn\u011b, ide\u00e1ln\u011b na podzim p\u0159ed zimou. Pozornost v\u011bnujte spodn\u00edm roh\u016fm, pant\u016fm a hran\u00e1m, kde po\u0161kozen\u00ed nej\u010dast\u011bji za\u010d\u00edn\u00e1.<\/span><\/p>\n

      Lze kovovou z\u00e1rube\u0148 nat\u0159\u00edt p\u0159\u00edmo na rez?<\/b><\/p>\n

      Ano, pokud jde o m\u00edrnou, dob\u0159e o\u010di\u0161t\u011bnou rez. Antikorozn\u00ed n\u00e1t\u011br 2v1 se nan\u00e1\u0161\u00ed p\u0159\u00edmo na povrch po ru\u010dn\u00edm o\u010di\u0161t\u011bn\u00ed. P\u0159i siln\u00e9 korozi nejprve pou\u017eijte antikorozn\u00ed z\u00e1klad.<\/span><\/p>\n

      Kdy se vyplat\u00ed z\u00e1rube\u0148 rad\u011bji vym\u011bnit ne\u017e renovovat?<\/b><\/p>\n

      Kdy\u017e je materi\u00e1l naru\u0161en\u00fd do hloubky: prohnil\u00e9 d\u0159evo nebo kov prorezav\u011bl\u00fd skrz na skrz. U zdrav\u00e9 konstrukce je renovace v\u00fdrazn\u011b levn\u011bj\u0161\u00ed ne\u017e v\u00fdm\u011bna.<\/span><\/p>\n

      Jakou barvu pou\u017e\u00edt na venkovn\u00ed kovovou z\u00e1rube\u0148?<\/b><\/p>\n

      Venkovn\u00ed antikorozn\u00ed barvu na kov, kter\u00e1 snese teplotn\u00ed v\u00fdkyvy a vlhkost bez prask\u00e1n\u00ed a odlupov\u00e1n\u00ed. Interi\u00e9rov\u00e1 barva do exteri\u00e9ru nesta\u010d\u00ed.<\/span><\/p>\n

      Je n\u00e1ro\u010dn\u011bj\u0161\u00ed na \u00fadr\u017ebu d\u0159ev\u011bn\u00e1, nebo kovov\u00e1 z\u00e1rube\u0148?<\/b><\/p>\n

      D\u0159ev\u011bn\u00e1 vy\u017eaduje \u010dast\u011bj\u0161\u00ed pravidelnou p\u00e9\u010di. Kovov\u00e1 d\u00e1 m\u00e9n\u011b ka\u017edodenn\u00ed pr\u00e1ce, ale zanedb\u00e1n\u00ed ochrany proti korozi vyjde dr\u00e1\u017e.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

      Pokud chcete z\u00e1rubn\u011b s men\u0161\u00ed pravidelnou \u00fadr\u017ebou, ve v\u011bt\u0161in\u011b b\u011b\u017en\u00fdch podm\u00ednek vych\u00e1zej\u00ed l\u00e9pe kovov\u00e9. Jsou pevn\u011bj\u0161\u00ed a rozm\u011brov\u011b stabiln\u011bj\u0161\u00ed, po\u0161kozen\u00fd n\u00e1t\u011br je v\u0161ak t\u0159eba rychle opravit, aby neza\u010daly korodovat. D\u0159ev\u011bn\u00e9 nebo d\u0159evovl\u00e1knit\u00e9 z\u00e1rubn\u011b p\u016fsob\u00ed p\u0159irozen\u011bji, ale citliv\u011bji reaguj\u00ed na vlhkost a po\u0161kozen\u00ed povrchu. Skute\u010dn\u00fd rozd\u00edl se proto neprojev\u00ed pouze p\u0159i n\u00e1kupu, ale p\u0159edev\u0161\u00edm v tom, […]<\/p>\n","protected":false},"author":6,"featured_media":971,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2,7],"tags":[],"class_list":["post-969","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-barvy","category-farby"],"acf":[],"yoast_head":"\nRozd\u00edl mezi z\u00e1rubn\u011bmi: d\u0159evo vs. kov a \u00fadr\u017eba<\/title>\n<meta name=\"description\" content=\"Jak\u00fd je rozd\u00edl mezi z\u00e1rubn\u011bmi ze d\u0159eva a kovu z hlediska \u00fadr\u017eby, \u017eivotnosti a n\u00e1klad\u016f? 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