ʻO ka trapezoidal pā waho e kau ana i ka pā e hana ana i ka mīkini he mea hana kūikawā i hoʻohana ʻia no ka hoʻoponopono ʻana i nā ʻāpana metala i loko o nā tile trapezoidal corrugated a i ʻole nā ʻano pā e kau ʻia ana, i hoʻohana pinepine ʻia no ke kūkulu ʻana i nā mea hoʻonaninani o waho. Loaʻa ka mīkini i ka hānai ʻana, hana a ʻokiʻoki i nā hana, a hiki ke hana maikaʻi i nā tile trapezoidal corrugated a i ʻole nā huahana papa e kau ana, e hoʻomaikaʻi i ka hana hana a me ka hōʻoia ʻana i ka maikaʻi o ka huahana.