ʻO ka pōhaku kākela moʻomeheu no ka pā waho o ka hale a me ka hale ma ke ʻano o ka hale kākela ʻEulopa

(1) ʻAno māmā. ʻO ka umekaumaha kikoʻī he 1/3-1/4 o ka pōhaku maoli, me ke kākoʻo ʻole o ka pā.
(2) Paʻa. ʻAʻohe mae, pale ʻana i ka corrosion, pale ʻana i ka wā, ka ikaika kiʻekiʻe, ke kūpaʻa hau a me ka impermeability maikaʻi.
(3) Palekana kaiapuni omaomao. ʻAʻohe ʻala, hoʻoheheʻe ʻia ke kani, pale ʻana i ke ahi, ka wela wela, ʻaʻohe mea ʻawaʻawa, ʻaʻohe pollution, ʻaʻohe radioactivity.
(4) Ka lepo a me ka hana hoʻomaʻemaʻe ponoʻī: ma hope o ka mālama ʻana i ke kaʻina hana wai wai, ʻaʻole maʻalahi ke pili i ka lepo, hiki ke holoi ʻia ka makani a me ka ua iā ia iho me he mea hou, mālama manuahi.
(5) Hoʻokomo maʻalahi, mālama kālā. ʻAʻole pono e rivet ia ma ka paia, e hoʻopili pololei; ʻO ke kumukūʻai hoʻokomo he 1/3 wale nō o ka pōhaku maoli.
(6) Nā koho hou aku. He ʻokoʻa ke ʻano a me ka waihoʻoluʻu, a ʻo ka hui pū ʻana a me ka hoʻohui ʻana e hana i ka pā i ka hopena ʻekolu-dimensional