Cov dej dej vapor permeability ntawm lub nBr / pvc roj hmab ua npuas ncauj?

Dej vapor permeability yog qhov tseem ceeb rau kev xav txog thaum ntsuas qhov ua kom zoo ntawm NBR / PVC cov roj hmab ua npuas rwb thaiv tsev. Cov cuab yeej no hais txog cov khoom siv muaj peev xwm tso dej vapor kom dhau mus. Rau NBR / PVC cov roj hmab ua npuas ncauj rwb thaiv tsev, nkag siab txog nws cov dej vapor permeability yog qhov tseem ceeb rau kev txiav txim siab nws cov kev siv.

Cov dej vapor permeability ntawm nbr / pvc roj av rwb thaiv tsev yog qhov tseem ceeb hauv kev lag luam kev tsim kho thiab HVAC. Hom kev tawm ntawm feem ntau siv nyob rau hauv cov ntawv thov uas noo noo tsis kam yog qhov tseem ceeb, xws li hvac devilia, tub yees txias chaw. To taub cov dej vapor permeability ntawm cov khoom siv no yog qhov tseem ceeb los ua kom pom nws cov khoom insulating dhau sijhawm.

Cov dej vapor permeability ntawm nbr / pvc roj av cov roj hmab rwb thaiv tsev feem ntau yog ntsuas hauv cov koog xws li perm lossis ntses). Ib qho chaw dej qis dua vapor permeability tus nqi qhia tau tias cov khoom siv yog tiv taus cov dej tso tawm ntau, uas yog qhov tsim nyog nyob rau hauv ntau cov ntawv thov rwb thaiv tsev ntau. Cov cuab yeej yog kuaj nyob rau qhov xwm txheej tshwj xeeb, xws li cov huab cua sov thiab av noo, los muab cov ntaub ntawv raug rau kev sib piv.

Thaum soj ntsuam cov dej vapor ermeability ntawm nbr / pvc roj av rwb thaiv tsev, nws yog ib qho tseem ceeb kom xav txog cov cai tshwj xeeb ntawm cov ntawv thov. Piv txwv li, hauv cov chaw ntim khoom txias, cov rwb thaiv tsev yuav tsum tsis txhob muaj kev tiv thaiv hws thiab noo noo tsim kom muaj kev ncaj ncees ntawm cov khoom lag luam khaws cia. Hauv HVAC cov tshuab, cov ntaub ntawv rwb thaiv tsev yuav tsum tuaj yeem tiv thaiv sib txawv thiab cov av noo uas tsis cuam tshuam lawv cov kev ua tau zoo.

Hauv cov ntsiab lus, cov dej vapor permeability ntawm NBR / PVC roj hmab ua npuas ncauj rwb thaiv tsev yog qhov tseem ceeb hauv kev txiav txim siab ntawm nws cov kev siv. Los ntawm kev nkag siab cov xeeb ceem no thiab xaiv cov ntaub ntawv rwb thaiv tsev nrog cov thawj tswj kav dej tsim nyog tuaj yeem ua rau lub chaw ua haujlwm tsim nyog thiab siv tau lub rwb thaiv tsev. Thaum soj ntsuam cov dej vapor ermeability ntawm nbr / pvc roj hmab ua npuas ncauj rau ib daim ntawv thov ib puag ncig, cov kev xav tau ib puag ncig thiab kev ua tau zoo ib puag ncig.