Uwiteka Aluminium coil nziza cyane yikirere iremeza ko ishobora guhangana n’ibidukikije bikabije, harimo ubushyuhe bukabije, imirasire ya UV, n’ubushuhe. Ibi bituma ibera porogaramu yo hanze, aho izagumana ibara ryayo ryiza hamwe nuburabyo burangiza mumyaka iri imbere.