Mus nthuav thiab theej peculiar ntsiab ntawm tus tsim ntawm qhov chaw nyob hauv ib co qauv kev niaj hnub tuaj yeem raug ntaus nqi iav sab hauv lub qhov rooj. Lawv tau muab tso rau hauv thawj qhov chaw thaum lub qhov rooj tsis yog txhais meej, tab sis muaj ib qho yuav tsum tau cais, piv txwv li, ib chav loj loj ua ob.
Hom kev zawm hniav iav
Txhua lub iav sliding qhov rooj yuav muab faib ua hom, ua ntej ntawm tag nrho cov, nyob ntawm lawv cov qauv sab nraud - lawv muaj peev xwm ua tsis tau, thaum lub qhov rooj nplooj yog ib daig iav; thiab thav duab, thaum lub iav yog ntxig rau hauv cov duab ntawm ib cov khoom (yas, hlau, ntoo). Thiab tus ncej nws tus kheej hauv iav zawv zawg qhov rooj tuaj yeem ua haujlwm ua ib qho ntxiv ntawm cov khoom siv tha xim sab hauv. Feem ntau, cov neeg tsim qauv sab hauv pom zoo siv cov iav xws li iav sab hauv, qhov tshwj xeeb tshaj yog nrog cov ntoo, los kho lub qhov rooj ntawm chav tsev thiab chav ua noj. Nyob rau hauv cov ntaub ntawv no, lub thav duab yuav xaiv (ua kom yuam) nyob rau hauv tib lub style li, piv txwv li, lub facades ntawm chav ua noj.
Qhov kev faib tawm tom ntej no rau cov hom iav hauv cov qhov rooj ntawm lub qhov rooj, uas tseem hu ua qhov rooj-coupe, yog hom iav siv. Rau cov qhov rooj, ob hom iav (8-12 hli tuab) siv - tshwj xeeb npau npau thiab triplex nrog ob-lossis peb-txheej qauv. Tempered khob, raws li lub npe implies, muaj ib tug tshwj xeeb ua tshuab (hardening), raws li ib tug ntawm uas nws acquires tshwj xeeb lub zog. Nyob rau hauv cov ntaub ntawv ntawm ib tug muaj zog feem, xws li ib lub khob yog tawg rau hauv me me pieces - lawv yuav tsis ua rau raug mob loj. Triplex iav siv cov cuab yeej ntawm kev siv cov yeeb yaj kiab tshwj xeeb uas txuas mus rau iav ntu ntawm qib molecular. Raws li qhov cuam tshuam, qhov no ua rau cov duab no tiv thaiv fragmentation ntawm cov khoom tawg - lub iav tsuas yog crackes, tab sis tsis crumble. Txhua hom iav tuaj yeem tau kho kom zoo, uas yog ib qho yooj yim xaiv rau koj saj thiab tha xim sab hauv - siv ntau hom kev kos duab, kos duab, co duab, ntim ntawm cov xim iav los yog cov xim iav.
Cov zawv zawg iav qhov rooj - qhov no tsis yog thawj qhov tsim ntawm qhov rooj, tab sis kuj yog ib txoj kev nthuav kev nthuav dav ntawm qhov chaw, vim tias lawv pom ib qho yooj yim thiab airy thiab ib qho ntxiv, lawv muaj kev sib kis ntawm cov kis loj.
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