Kaviri bapiro rekuwedzera kamuri inonziwo kaviri bapiro kupeta kamuri, kushandiswa kwesimbi yakakwirira-yakasimba sikweya pombi, galvanized Angle simbi uye zvimwe mwenje simbi zvinhu kuita furemu, anti-corrosion yakapetwa kaviri-mativi ruvara simbi inoumba ndiro semadziro, iyo kushandiswa kwehinge yakakwirira-yakasimba pakati pefuremu yekubatanidza kumusoro, mushure mekuverenga kwesayenzi, inogona kukurumidza kuwedzera nzvimbo yeimba yeimba.Nzvimbo yeimba yakawedzerwa yakakura zvakapetwa katatu pane isati yatanga kuvandudzwa.Inogona kugadzira 20 tsoka, 40 tsoka yekuwedzera kamuri, inogona zvakare kugadzirwa zvinoenderana nezvinodiwa nevatengi.Imhando yeimba ine yepamusoro tekinoroji zvemukati pakati pezvivakwa zvekugara dzimba.
Iyo kaviri mapapiro ekuwedzera kamuri inoshandisa hinge yekubatanidza pamberi pemadziro, uye vhoriyamu mushure mekudzvanywa inodzikiswa zvakanyanya, iri nyore pakufambisa.