Iyi etage yazamuye yabugenewe muburyo bworoshye bwa kabili mumazu yubwenge.Hanze ya etage yazamuye ikozwe mumashanyarazi yo mu rwego rwohejuru ya zinc ikonje, hejuru no hepfo byombi biringaniye cyane-kurambura zinc ubukonje.Ibikoresho bya tekinike yo gusudira bigezweho bikoreshwa hejuru no hasi hasi, kandi hagati huzuyemo sima yoroheje yibikoresho byihariye byakozwe na KEHUA.Muri ubu buryo, ibicuruzwa byarangiye biranga ubushobozi bwo gupakira no kuramba.Ubuso bwa etage yazamuye burashobora gutwikirwa na PVC zitandukanye cyangwa ibitambara.