Yintoni i-Water Vapor Permeability (WVP) yemathiriyeli yokugquma?

Ukuba ukushishino lokwakha okanye uceba ukugquma indlu, usenokuba uye wadibana negama elithi umphunga wamanzi permeability (WVP).Kodwa yintoni kanye kanye iWVP?Kutheni kubalulekile xa ukhetha izinto zokugquma?

Umphunga wamanzi permeability (WVP) ngumlinganiselo wesakhono semathiriyeli ukuvumela ukudlula komphunga wamanzi.I-WVP yinto ebalulekileyo ekufuneka iqwalaselwe xa kufikwa kwi-insulation njengoko ichaphazela ukusebenza ngokubanzi kwe-insulation ekugcineni indawo epholileyo kunye neyonga amandla angaphakathi.

Izixhobo zokugquma nge-WVP ephantsi zinokuthintela ngokufanelekileyo ukwakheka kokufuma ngaphakathi kweendonga zesakhiwo kunye nophahla.Oku kubalulekile kuba ukufuma okuphezulu kunokukhokelela ekukhuleni kokungunda kunye nokonakala kwesakhiwo ngokuhamba kwexesha.Kwelinye icala, izixhobo ezine-WVP ephezulu zivumela ukufuma okungaphezulu ukuba kudlule, okunokuba luncedo kwiimeko ezithile apho kufuneka ulawulo lokufuma.

Ngoko ke, indlela yokumisela i-WVP yezinto zokugquma?I-WVP yemathiriyeli iqhele ukulinganiswa ngeegremu ngemitha yesikwere ngosuku (g/m²/ngosuku) kwaye inokuvavanywa kusetyenziswa iindlela ezisemgangathweni ezifana ne-ASTM E96.Olu vavanyo lubandakanya ukuveza izinto kwiimeko zokufuma ezilawulwayo kunye nokulinganisa isantya apho umphunga wamanzi udlula kwisampulu kwixesha elithile.

Xa ukhetha izinto zokugquma kwiprojekthi, kubalulekile ukuqwalasela imozulu kunye neemfuno ezikhethekileyo zesakhiwo.Ngokomzekelo, kwiindawo ezibandayo apho ukufudumeza kufuna ixesha elininzi lonyaka, kubalulekile ukukhetha ukufakwa kwe-insulation kunye ne-WVP ephantsi ukukhusela ukwakhiwa komswakama kunye nomonakalo onokwenzeka kwisakhiwo sokwakha.Kwelinye icala, kwiindawo ezishushu nezifumileyo, izinto ezine-WVP ephezulu zinokukhethwa ukuze zifezekiseke ngcono ulawulo lokufuma nokuthintela ukuxinana ngaphakathi eludongeni.

Kukho iintlobo ezininzi zezixhobo zokugquma kwimarike, nganye ineempawu zayo ze-WVP.Umzekelo, izixhobo zokugquma amagwebu ezifana ne-polyurethane kunye ne-polystyrene ngokubanzi zine-WVP esezantsi, zizenza zilungele ukusetyenziswa kwindawo ezibandayo nezimanzi.I-Cellulose kunye ne-fiberglass insulation, kwelinye icala, zine-WVP ephezulu, izenza zifaneleke ngcono kwimozulu eshushu kunye nefumileyo.

Ukongeza kwingqwalasela yemozulu, indawo kunye nokusetyenziswa kwe-insulation kufuneka kuthathelwe ingqalelo.Umzekelo, ukugquma kwigumbi elingaphantsi okanye kwindawo yokukhasa kunokufuna imathiriyeli ene-WVP esezantsi ukuthintela ukufuma ekungeneni kwiindonga zesiseko.Ngokwahlukileyo, ukugquma kwe-attic kunokuzuza kwizinto ezine-WVP ephezulu yolawulo olungcono lokufuma kunye nokukhuselwa ngokuchasene ne-condensation.

Ukuqukumbela, ukunyanzeliswa komphunga wamanzi (WVP) yinto ebalulekileyo ekufuneka iqwalaselwe xa ukhetha izinto zokugquma kwiprojekthi yokwakha.Ukuqonda iimpawu ze-WVP zezixhobo ezahlukeneyo kunye nendlela ezichaphazela ngayo ulawulo lokufuma kunye nokusebenza ngokubanzi kwesakhiwo kubalulekile ekuqinisekiseni indawo ekhululekile kunye neyonga amandla angaphakathi.Ngokuqwalasela imozulu yakho ethile, indawo, kunye nesicelo sokugquma, unokwenza isigqibo esinolwazi malunga neyona nto ingcono yokugquma iprojekthi yakho.