Iyini i-Water Vapor Permeability (WVP) yezinto zokufakelwa?

Uma usembonini yezokwakha noma uhlela ukugqumisa ikhaya, kungenzeka ukuthi uhlangabezane negama elithi water vapor permeability (WVP).Kodwa iyini ngempela i-WVP?Kungani kubalulekile lapho ukhetha izinto zokufakelwa?

I-Water vapor permeability (WVP) isilinganiso sekhono lempahla lokuvumela ukudlula komhwamuko wamanzi.I-WVP iyisici esibalulekile okufanele icatshangelwe uma kuziwa ekufakeni amanzi njengoba kuthinta ukusebenza kukonke kwe-insulation ekugcineni indawo yasendlini enethezekile neyonga amandla.

Izinto zokuvikela ukushisa ezine-WVP ephansi zingavimbela ngempumelelo ukunqwabelana komswakama ngaphakathi kwezindonga zesakhiwo nophahla.Lokhu kubalulekile ngoba umswakama ophezulu ungaholela ekukhuleni kwesikhunta kanye nokulimala kwesakhiwo ngokuhamba kwesikhathi.Ngakolunye uhlangothi, izinto ezine-WVP ephezulu zivumela umswakama owengeziwe ukuba udlule, okungase kube nenzuzo ezimeni ezithile lapho kudingeka khona ukulawulwa komswakama.

Ngakho-ke, unganquma kanjani i-WVP yezinto zokufakelwa?I-WVP yento ephathekayo ivamise ukukalwa ngamagremu imitha yesikwele ngosuku (g/m²/ngosuku) futhi ingahlolwa kusetshenziswa izindlela ezijwayelekile ezifana ne-ASTM E96.Lokhu kuhlola kubandakanya ukudalula okokusebenza kuzimo zokuswakama ezilawulwayo kanye nokulinganisa izinga lapho umhwamuko wamanzi udlula khona kusampula ngesikhathi esithile.

Lapho ukhetha izinto zokuvikela iphrojekthi, kubalulekile ukunaka isimo sezulu kanye nezidingo eziqondile zesakhiwo.Isibonelo, ezimweni ezibandayo lapho ukushisa kuyadingeka isikhathi esiningi sonyaka, kubalulekile ukukhetha ukwahlukanisa nge-WVP ephansi ukuvimbela ukunqwabelana komswakama kanye nokulimala okungaba khona esakhiweni sesakhiwo.Ngakolunye uhlangothi, esimweni sezulu esishisayo nesiswakeme, izinto ezine-WVP ephakeme zingakhethwa ukuze kuzuzwe ukulawulwa komswakama okungcono futhi kuvinjwe ukuminyana ngaphakathi kodonga.

Kunezinhlobo eziningi zezinto zokufakelwa emakethe, ngayinye enezici zayo ze-WVP.Isibonelo, izinto zokuvikela igwebu njenge-polyurethane ne-polystyrene ngokuvamile zine-WVP ephansi, okuzenza zifanelekele ukusetshenziswa ezindaweni ezibandayo nezimanzi.Ngakolunye uhlangothi, i-cellulose ne-fiberglass insulation ine-WVP ephezulu, okuyenza ifaneleke kangcono isimo sezulu esishisayo nesinomswakama.

Ngaphezu kokucatshangelwa kwesimo sezulu, indawo kanye nokusetshenziswa kwe-insulation nakho kufanele kucatshangelwe.Isibonelo, ukwahlukanisa egumbini elingaphansi noma endaweni yokukhasa kungase kudinge okokusebenza okune-WVP ephansi ukuvimbela umswakama ukuthi ungangeni ezindongeni zesisekelo.Ngokuphambene, ukufakwa kwe-attic kungase kuzuze ezintweni ezine-WVP ephakeme yokulawula umswakama okungcono nokuvikelwa ekujikeni.

Sengiphetha, i-water vapor permeability (WVP) iyisici esibalulekile okufanele sicatshangelwe lapho kukhethwa izinto zokufakelwa kwephrojekthi yokwakha.Ukuqonda izici ze-WVP zezinto ezihlukene nokuthi zithinta kanjani ukuphathwa komswakama kanye nokusebenza kwesakhiwo kukonke kubalulekile ukuze kuqinisekiswe indawo yasendlini enethezekile neyonga amandla.Ngokucabangela isimo sakho sezulu esithile, indawo, kanye nesicelo sakho sokufakelwa kwe-insulation, ungenza isinqumo unolwazi mayelana nokwahlukanisa okungcono kakhulu kwephrojekthi yakho.