Iikheyibhile zeenkqubo zokusasazwa kombane ongaphezulu kuwonke-wonke. Ufakelo lwangaphandle kwimigca engaphezulu iqinisiwe phakathi kweenkxaso, imigca eqhotyoshelwe kwiifaçades. Ukuchasana okugqwesileyo kwiiarhente zangaphandle. Ayilungelanga ukufakela ngokuthe ngqo phantsi komhlaba. Ukuhanjiswa okungaphezulu kweendawo zokuhlala, ezisemaphandleni nasezidolophini, ukuhambisa nokusasazwa kombane ngeepali zoncedo okanye izakhiwo. Xa kuthelekiswa neenkqubo ze-conductor ezingenanto, inika ukhuseleko oluphuculweyo, ukunciphisa iindleko zokufakela, ilahleko yamandla ephantsi kunye nokuthembeka okukhulu.