Ubunzima bendawo yobungqina bokudubula-abuyiyo ixabiso elizinzileyo kwaye ichatshazelwa zizinto ezininzi.
Ngokwemathiriyeli,{0}}iiphaneli zobungqina bokudubula ezenziwe ngemathiriyeli eyahlukileyo zinokuxinana okwahlukileyo, okukhokelela kubunzima obahlukeneyo. Umzekelo, iiphaneli zefiber{2}}ezomeleziweyo zesamente ziqhele ukubanobunzima obuphakathi kwe-25 kunye ne-30 yeekhilogram nge-square meter, ngelixa iipaneli zesinyithi, ezifana ne-aluminium alloy, zinobunzima obumalunga ne-10 ukuya kwi-15 yeekhilogram kwi-square meter nganye.
Ukutyeba kwakhona ngumba ophambili ochaphazela ubunzima. Okukhona ipaneli ijiyile, inzima ngakumbi. Ugqabhuko-dubulo oluqhelekileyo -iiphaneli zobungqina zikholisa ukuba yi-6 ukuya kwi-12 mm ubukhulu. Umzekelo, i-6 mm ubukhulu befayibha{7}}iphaneli yesamente eyomeleziweyo inobunzima obumalunga ne-25 yeekhilogram nge-square meter nganye, ngelixa i-12 mm yephaneli engqindilili inobunzima obuphantse bube yi-50 yeekhilogram kwi-square meter nganye.
Ukongezelela, inkqubo yokuvelisa kunye nokongezwa kwezithako ezikhethekileyo kunokuchaphazela ubunzima. Kwizicelo ezizizo, ubunzima obufanelekileyo bokudubula{1} kweephaneli zobungqina kufuneka zikhethwe ngokusekelwe kwiimfuno ezithile kunye neemfuno zoyilo.
