Iglasi ye-insulating, eyaziwa ngokuba yiglasi ephindwe kabini, iyasebenza kudonga lwangaphandle lwezakhiwo.Kubhekiselele kwinkqubo yenkxaso yenkxaso kunye nekhono elithile lokuguqulwa xa kuthelekiswa nesakhiwo esiyintloko, kodwa inkqubo yesakhiwo seglasi ayihlanganyeli ubunzima okanye isakhiwo somthwalo wesakhiwo kunye nomzimba oyintloko.Ludonga lwesakhiwo, olwenziwe ikakhulu ngeglasi ephindwe kabini kunye ne-insulation kunye ne-sound insulation