Ko te pae kupenga maitai te tikanga hanga o te waro maitai, a ko te mata he wera-tuku piauau, e taea te ārai hāoratanga.Ka taea hoki te hanga ki te kowiri tira.Ko te pae kupenga maitai he ventilation, rama, toreretanga wera, anti-skid, pahū-tohu me etahi atu taonga.