Tus nqi R ntawm cov rwb thaiv tsev yog dab tsi?

Yog tias koj tab tom yuav khoom siv rwb thaiv tsev, tej zaum koj twb tau ntsib lo lus "R-value." Tab sis nws yog dab tsi tiag? Vim li cas nws thiaj tseem ceeb thaum xaiv cov khoom rwb thaiv tsev zoo rau koj lub tsev?

Tus nqi R ntawm ib lub rwb thaiv tsev yog qhov ntsuas nws qhov kev tiv taus cua sov. Hais yooj yim xwb, nws qhia tau tias lub rwb thaiv tsev tiv taus cua sov zoo npaum li cas. Tus nqi R siab dua, qhov zoo dua ntawm kev rwb thaiv tsev kom koj sov thaum lub caij ntuj no thiab txias thaum lub caij ntuj sov.

Tus nqi R yog ib qho tseem ceeb uas yuav tsum xav txog thaum xaiv cov khoom rwb thaiv tsev rau koj lub tsev. Nws tuaj yeem pab koj txiav txim siab seb hom thiab qhov ntau npaum li cas ntawm cov khoom rwb thaiv tsev uas xav tau los tswj qhov kub thiab txias ntawm koj lub tsev thiab txo cov nqi hluav taws xob.

Tej thaj chaw sib txawv ntawm koj lub tsev yuav xav tau cov nqi R sib txawv, nyob ntawm koj huab cua thiab qhov ntau ntawm cov khoom rwb thaiv tsev uas twb muaj lawm. Piv txwv li, cov khoom rwb thaiv tsev hauv qab nthab feem ntau xav tau cov nqi R siab dua li cov khoom rwb thaiv tsev ntawm phab ntsa vim tias cua sov feem ntau nce thiab tawm hauv qab nthab.

Lub Tsev Haujlwm Saib Xyuas Zog ntawm Tebchaws Meskas muab cov lus qhia txog tus nqi R raws li thaj chaw huab cua. Cov lus qhia no tuaj yeem pab cov tswv tsev thiab cov neeg ua vaj tse txiav txim siab tus nqi R uas tsim nyog rau lawv qhov chaw tshwj xeeb.

Hauv cov huab cua txias, cov nqi R siab dua raug pom zoo kom txo qhov poob cua sov thiab txo kev siv hluav taws xob. Hauv cov huab cua sov, tus nqi R qis dua yuav txaus los tiv thaiv kev nce cua sov thiab tswj qhov kub hauv tsev kom xis nyob.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tus nqi R tsuas yog ib qho uas yuav tsum xav txog thaum xaiv cov khoom siv rwb thaiv tsev. Lwm yam xws li kev tiv taus dej noo, kev nyab xeeb hluav taws thiab cov nqi teeb tsa kuj yuav tsum tau xav txog.

Muaj ntau hom khoom siv rwb thaiv tsev muaj, txhua yam muaj nws tus nqi R. Fiberglass, cellulose, foam board, thiab spray foam yog qee qhov kev xaiv uas siv ntau, txhua yam muaj cov nqi R sib txawv thiab cov txheej txheem teeb tsa sib txawv.

Thaum piv cov ntaub ntawv rwb thaiv tsev, tsis yog tsuas xav txog tus nqi R xwb, tab sis kuj xav txog kev ua tau zoo thiab lub neej ntev ntawm cov ntaub ntawv rwb thaiv tsev. Tej yam ntaub ntawv yuav muaj tus nqi R siab dua tab sis yuav tsis ua haujlwm zoo hauv qee yam mob lossis xav tau kev saib xyuas ntau dua.

Ntxiv rau kev xaiv cov khoom siv rwb thaiv tsev zoo, kev teeb tsa kom raug yog qhov tseem ceeb rau kev ua kom koj qhov R-tus nqi ua haujlwm tau zoo tshaj plaws. Qhov sib txawv, kev nias, thiab cua xau tuaj yeem ua rau kev ua haujlwm ntawm cov rwb thaiv tsev tsis zoo, ua rau txo qis kev tiv taus cua sov thiab kev siv hluav taws xob.

Yuav kom tau txiaj ntsig zoo tshaj plaws, nws raug nquahu kom sab laj nrog tus kws kho cua sov uas tuaj yeem soj ntsuam qhov xav tau tshwj xeeb ntawm koj lub tsev thiab pom zoo hom cua sov thiab R-value uas tsim nyog tshaj plaws.

Hauv kev xaus lus, tus nqi R ntawm cov khoom siv rwb thaiv tsev ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws qhov kev tiv taus cua sov thiab kev ua haujlwm zoo hauv kev tswj qhov kub ntawm koj lub tsev. Los ntawm kev paub tus nqi R uas pom zoo rau koj qhov chaw nyob thiab xaiv cov rwb thaiv tsev zoo, koj tuaj yeem txhim kho kev siv hluav taws xob, txo cov nqi cua sov thiab txias, thiab tsim kom muaj ib puag ncig hauv tsev zoo dua.