Iyo bigeze ku gishushanyo mbonera cyigikoni, guhitamo icyerekezo gikwiye birashobora kugira ingaruka zikomeye haba mubikorwa ndetse nubwiza. Ihitamo rimwe ryamamaye ryamenyekanye cyane ni ikibanza cya quartz cyo munsi. Iyi shingiro nshya ihuza kuramba kwa quartz hamwe nubusa bworoshye bwo kwishyiriraho munsi, kubigira byiyongera ku gikoni icyo aricyo cyose. Undermount quartz ihuriweho ni