Aka ni akabati k'ibara ry'umukara gashyirwa hanze. Ubwo bwoko bw'akabati k'ububiko bukoreshwa cyane cyane mu kwakira amapaki y'ibaruwa, ibyo bikaba byorohereza abatwara amapaki kubika amapaki iyo uwahawe adahari mu rugo. Gafite imikorere yo kurwanya ubujura, kurinda imvura, gashobora ku rwego runaka kurinda umutekano w'ikarava. Gakunze gukoreshwa mu turere dutuwemo n'abaturage, mu biro no ahandi hantu, gakemura neza ikibazo cy'ikinyuranyo cy'igihe kiri hagati yo kwakira ikarava, kugira ngo korohereze kwakira ikarava n'umutekano w'ububiko bw'ikarava.