Hoʻohana nui ʻia nā alapiʻi insulating e like me nā mea hana piʻi kūikawā no ka hana ola ʻana i ka ʻenehana mana uila, ʻenehana kelepona, ʻenekinia uila, hydropower engineering, etc.
ʻO ke alapiʻi kaula i hoʻopaʻa ʻia he mea hana i ulana ʻia me ke kaula palupalu i hoʻopaʻa ʻia a me ka paipu hoʻoneʻe i hoʻopaʻa ʻia, hiki ke hoʻohana ʻia no nā mea hana piʻi no ka hana ola ma nā kiʻekiʻe.