te hanga i te raupō karbona
Te whakatū i te rākau karbona e whakaatu ana i tētahi whiuwhiuinga whakamua i roto i te hanganga moemoeā o nāianei, e whakawhitiwhiti ana i te kaha nui me te pono āhuarangi iti. Ko tēnei materiana hou e whai ake nei ko ngā niho karbona iti noa, kaha rawa, e tuhi ana ki runga i ēnei niho hei whakatupu i tētahi wharekura kapa kotahi. Ko te mahi hanga ka tono ki te whakapai i ngā whānuitanga o ngā rākau karbona me te haraunga epoki, ka whakauru atu ki ngā wā e taea ai te whakatakoto i te wehewehenga o te wā me te upoko. Ka puta he materiana e pai ana te uara ki te mohiotanga o te kaha ki te mana āhuarangi i waenganui i ngā materiana whenua nei pērā i te toki riro me te whakaruruhanga. Ko te whanaketanga o te whakatū i te rākau karbona ka whakaae kia whakamahia i waenganui i ngā whenua, mai i te whakatere ki te motokā, ki ngā taonga porihoriho me te hanga whare. Ko ōna āhuatanga nui kei a ia ka whakaae kia hanga e ngā hangaenga i ngā wharekura e kore e painga ana engari e āta kotahi ana i te mana o ā rātau whakapae. Ko te whiuwhiuinga matua o tēnei materiana ki te whakakore i te whakarerekētanga me te whakapae i te whakatutuki i te kaha i te hunga whakamutunga.