Thaum nws los txog rau cov vuas vov, ntau tus neeg paub txog lawv. Niaj hnub no, feem ntau ntawm cov nroog yog cov tsev siab, yog li cov vuas vov ntawm lub ru tsev tseem ceeb heev, ntawm ib sab tes, lawv ua lub luag haujlwm ntawm kev tiv thaiv hnub thiab nag, ntawm qhov tod tes, lawv kuj yog tus nqa khoom ntawm Suav teb zoo nkauj.

Cov vuas glazed nrog phab ntsa dawb nyob rau sab qab teb ntawm tus dej Yangtze yeej ib txwm muab kev lom zem zoo rau tib neeg. Ua ib yam khoom siv hauv tsev, vuas muaj keeb kwm ntev hauv Suav teb, hnub rov qab mus rau thaum ntxov Western Zhou Dynasty. Muaj ob peb lub cib thiab vuas tau pom ntawm qhov chaw ntawm thaum ntxov Western Zhou Dynasty hauv Fengqi Village, Qishan, Shaanxi Province.

Asphalt shingleUa ib hom pobzeb tshiab, ntau tus neeg yuav tsis paub, nws yog ua los ntawm dab tsi, nws tsis yog kev tiv thaiv ib puag ncig, nws lub neej kev pabcuam, hnub no los muab kev qhia ntxaws rau koj.

Cov shingle asphaltyog cov vuas vov tsev uas ua los ntawm cov fiberglass uas muaj cov xim av me me ntawm ib sab tes thiab cov khoom siv cais tawm ntawm qhov tod tes. SBS muaj kev ywj pheej zoo heev thiab kev tiv thaiv kev hloov pauv. Tsis zoo li cov ntaub ntawv polymer, asphalt muaj cov khoom sib xyaw ua ke ntawm cov molecule me me. Lub zog khi ntawm cov molecule me me no nyob ntawm qhov kub thiab txias. Kev sib xyaw ntawm polymer thiab asphalt tuaj yeem ua rau lub zog khi ruaj khov dua li ntawm asphalt nyoos thiab asphalt oxidized. Cov asphalt shingles feem ntau vam khom cov shingles sab saud los kaw cov shingles qis dua kom tiv thaiv cua los ntawm tshuab mus.

Cov shingle asphalt hloov kho SBS muaj peev xwm khoov thiab rov qab los tom qab cua hlob, uas txo qhov ua tau tias cua yuav tsa. Cov shingle asphalt kuj tseem hu ua fiberglass shingle, linoleum shingle, fiberglass tire asphalt shingle. Lub neej ua haujlwm dav dav ntawm cov shingle asphalt txheem yog li 30 xyoo, yog li peb kuj yuav tsum xaiv cov chaw tsim khoom ib txwm thaum yuav, yog li seb qhov zoo ntawm cov shingle asphalt puas tau lees paub zoo dua.

Tam sim no, ntau lub tsev nyob hauv lub tebchaws nyiam siv cov asphalt shingles, lossis qhov no yog kev nce qib hauv zej zog, kuv tsis paub tias koj siv hom shingles twg hauv tsev?

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