Kubijyanye no kuvura hejuru, hari ubwoko butatu: bushyushye-bushyushye, PVC yometseho, kandi ntanumwe wo kuvura hejuru.
Bishyushye bishyushye.Nibisanzwe kandi bizwi cyane kumasoko yisi.Umubyimba mwinshi wa galvanised ituma irwanya ingese.Muri ubu buryo, panele izishimira ubuzima burebure.Kubyerekeranye na tekinoroji ya galvanizing, hariho kandi ubwoko bubiri butandukanye: bushyushye bushyutswe nyuma yo gusudira no gushyushya ubushyuhe mbere yo gusudira:
Bishyushye bishyushye nyuma yo gusudira.Muri iki gihe, paneli zose zizashyirwa mu nkono ya zinc kugirango zirangize galvanizing.Nyuma yibi, akanama kose kazashyirwa hamwe harimo gusudira.Muri iki gihe, ibikoresho byayo ni insinga z'umukara zirabura nta kurangiza.Bivurwa nyuma yo gusudira birangiye.
Bishyushye bishyushye mbere yo gusudira.Muri iki gihe, imbaho zikozwe mu buryo butaziguye kuva mu nsinga ya galvanis hanyuma bikazakorwa mu mbaho binyuze mu buhanga bwo gusudira.Muri iki gihe, ibibanza byo gusudira bizahura n'umwuka.Bizoroha cyane kubora kuruta "gushyuha-gushyushye nyuma yo gusudira" twavuze haruguru.Kandi mugihe kimwe, birarenze mubukungu kandi birahenze.