Isitayile sefestile osikhethayo kwikhaya lakho sinokwenza umahluko wehlabathi kwi-insulation, i-acoustics, kunye nokusebenza kwe-thermal. I-awning/casement windows banokhetho oluvumela ukuba bajonge nokuba yi-retro okanye yangoku ngokuxhomekeke kuhlobo lwe-sash abanayo- i-splayed vs square one!
Olu khetho lusebenza kakhulu lukwabonelela ngesitywina esisebenzayo, esipheleleyo somjikelezo ojikeleze ilungu leglasi ukuze kungabikho kuvuza kuya kwenzeka nangaliphi na ixesha. Ngaphezu koko, kukho izakhono zokutshixa izitshixo, nazo, ukuba ziyanqweneleka ̶ ezi zinto zithetha ishishini xa lisihla ngokufanelekileyo, zizikhusela kubangeneleli abanokufuna ukufikelela ngaphandle kwemvume (abaqhekezi).
Ngaphandle kokuqina, iifestile ezingatshatanga okanye eziphindwe kabini zibonelela ngokugqwesa ukugquma kwe-thermal kunye ne-acoustics ngelixa zikwathandeka ngobuhle.