Mukova wesimbi isina tsvina wemoto unotora yakasarudzika flanging uye kuruma gonhi mashizha mashizha, ane zvakanakira chimiro chakanaka, yakakwirira moto inodzivirira uye yakasimba kusaita ngura. Musuwo wesimbi isina tsvina yemoto wakazadzwa nemhando itsva yemoto uye kupisa kupisa zvinhu (perlite board), iyo inopesana zvakanyanya nekushisa kwepamusoro.