Nā ō rātou kaihanga plasma i tuku mai ai ngā tohu tūpato, ki waenga o ngā tahuhu mete ki ngā hiahia pumau me ngā hiahia whakawhanake. Whaimana i whakatūria ki te mētauranga hōtuhi, ka whakahaere tonu i te whanaketanga o te mete, ko te poroiti, ko te whero, ko te whero kōwhai i runga i te raupapa 1". Ko ngā hanga iti nei e wāriki ana i te kawe i te mana ki te noho, nā te whakahaere matua e whakaaetanga ana i ngā tohu tūpato. Taea te whakamahi mo te mahi karaka, mo te mahi mete toi, me te hanga whare, ko ēnei kaihanga e whakauru ana i ngā pūtake haumaru me ngā kaihanga torch kaha hei whakamahia i te wā e hirari ana.