Vapor barrier zaj duab xis yog cov khoom siv los npaj cov ru tsev nrog ntau hom txheej txheej. Nws lub luag haujlwm tseem ceeb yog los tiv thaiv cov txheej txheem thermal rwb thaiv tsev los ntawm cov dej vapor, uas tuaj yeem nce thaum ntxuav, da dej, ua noj thiab lwm yam haujlwm hauv tsev.
Nyob rau hauv Soviet Union, xws li cov khoom siv tshwj xeeb vapor barrier zaj duab xis yeej tsis tuaj. Nyob rau hauv lub ru tsev, qhov zoo tshaj plaws, lub tes tsho polyethylene zaj duab xis tau siv, thiab feem ntau tsuas yog vov tsev xav, glassine los yog vov tsev. Cov ntaub ntawv tshiab tau tshwm sim tom qab kev tsim kho ntawm cov tsev neeg tseem ceeb tau pib, qhov uas xav tau cov thev naus laus zis tshaj plaws.
Ntawm lawv niaj hnub no peb tuaj yeem paub qhov txawv ntawm cov khoom siv polyethylene muaj zog ntxiv, uas tuaj yeem siv tau rau ob qho tib si chav dej thiab dej tsis zoo. Rau vapor barrier, cov yeeb yaj kiab uas tsis yog perforated feem ntau yog siv. Ib daim ntaub lossis ib lub mesh tshwj xeeb yog siv los ua lub hauv paus.
Qee zaum, thaum chav sib cais muaj qhov kub thiab txias (da dej, chav ua noj,sauna, pas dej da dej), tshwj xeeb vapor barrier zaj duab xis yuav tsum tau. Nyob rau hauv cov ntaub ntawv no, polyethylene zaj duab xis uas muaj txhuas ntawv ci lamination nyob rau hauv yuav tsum tau siv.
Cov khoom xws li vapor barrier zaj duab xis, kev teeb tsa uas tsis yooj yim, yuav tsum muaj nyob rau hauv kev tsim kho ntawm ib lub ru tsev. Vim qhov tsis muaj vapor barrier txheej cuam tshuam rau lub thermal rwb thaiv tsev yam ntxwv ntawm chav tsev, vim hais tias cov thermal rwb thaiv tsev uas tau ntub los ntawm hauv qab no muaj ib tug ntau dua ntawm tshav kub outflow. Cov zaj duab xis yog nteg on top ntawm rwb thaiv tsev ntawm lub rafters thiab fastened nrog staplers los yog rau tes. Lub overlaps yuav tsum tau insulated nrog ib tug vapor-tight film. Cov pob qij txha yuav tsum tau muab khi nrog cov hlua khi. Nyob rau sab saum toj ntawm zaj duab xis, feem ntau, waterproofing, counter-lattice los muab qhov sib txawv ntawm huab cua, lathing thiab cov khoom siv vov tsev nws tus kheej (cov vuas hlau, vov tsev hlau, mos, bitumen, composite ru tsev, thiab lwm yam) feem ntau nteg.
Vapor barrier zaj duab xis Yutafol yog cov khoom siv hauv tsev classic. Nws muaj ob qho tib si nrog txhuas txheej (Yutafol NAL) thiab tsis muaj (Yutafol N). Cov khoom siv muaj lub zog mesh laminated ntawm ob sab nrog cov khoom siv polyethylene. Cov yeeb yaj kiab yog tsim rau kev teeb tsa qhov chaw nyob hauv qab lub ru tsev tiaj tus thiab pitched. Cov khoom muaj ntawv pov thawj. Yob qhov ntev yog 1.5 x 50 meters, cov khoom tuab yog 0.17-0.22 hli rau cov yeeb yaj kiab zoo tib yam thiab 0.3 hli rau zaj duab xis nrog txhuas txheej. Yutafol nyob ntevkhoom. Nws ntseeg tau hais tias ib zaj duab xis nteg tau zoo yuav nyob nruab nrab ntev npaum li txhua lub ru tsev npog qhov nruab nrab. Thiab suav nrog cov khoom tshwj xeeb kom ntseeg tau tias cov nplaim taws tsawg.
Ntxiv rau qhov ua kom zoo dua cov rwb thaiv tsev thermal ntawm lub tsev, vapor barrier zaj duab xis pab txuag nyiaj, vim nws cov flooring ho expands lub neej ntawm rwb thaiv tsev.
