ʻO ka noho leʻaleʻa waho ma waho ma muli o kona kaiapuni, a he haiki ke koho mea. ʻO ka hapa nui, ua hana ʻia i nā mea e like me ka granite, marble, wood, stainless steel, steel pipe, etc. Ua hoʻohana ʻia ia ma ke ʻano he wahi lehulehu e like me nā noho paka, nā noho kaiāulu, nā noho alanui, a me nā mea ʻē aʻe, no laila kona kiʻekiʻe kiʻekiʻe a me nā pōʻino kiʻekiʻe (ka lā ultraviolet rays, ka ua a me ka corrosion, artificial Destruction, etc.
(1) Hana Hoʻokahi hana, hoʻonoho nui ʻia i nā paka, nā kaiāulu, nā alanui a me nā wahi ʻē aʻe. Hoʻohana ʻia e nā poʻe he nui, hoʻohana ʻia no ka pōʻeleʻele o waho, hoʻomaha, etc.;
(2) Aesthetics Hoʻohui nui ʻia nā hopena ʻike me ke kaiapuni waho. ʻO ka hapa nui o lākou e hoʻohana i nā mea kūlohelohe e like me ka lāʻau a me ke olonā, nā mea hana i ke ʻano, nani a nani, a ʻaʻole maʻalahi i ka nani.
(3) Hiki ke pale aku i ke ahi, -huhue, pale-corrosion, hiki ke halawai me ke koena o na kanaka me ka hoopilikia ole i kekahi i kekahi;
(4) Nā Mea Hana Mai hoʻohana i nā mea ʻawaʻawa a i ʻole nā mea ʻino a maʻalahi hoʻi e hoʻomaʻemaʻe. Ma muli o ke ʻano kūikawā o ka hoʻohana ʻana i waho, hoʻohana ka lāʻau maʻamau i ka lāʻau ʻilika, ʻoi aku ka ikaika o ka lāʻau ʻilika i waho - hopena ʻinoʻino, a me ka marble a i ʻole ka granite e pono ai ke ʻano maikaʻi e pale ai i ka pōʻino kanaka. No laila, pono e mālama 'ia ka hale kila me ka pale -poino, pale ua a me -poino i hanaia e ke kanaka.
