Nui rawa ngā pai me ngā pūtake matua o ngā rīpeka holo ā-waha i whakamahia mō ngā kaiwhakapuaki, e whiwhi ana i te nui o ngā pūmanawa tūpato. Tuatahi anō, ka tuku ki a rātou ngā wāhanga tūmatawhāiti kia kitea ai ngā take tēnā me te whakarerekē i ngā mahi whakatipu. Nui tonu te taurite o ngā pātai holo, nui rawa te whakapau moe ki te whakaaweawe, koia nei he tūtohu pai mō te tiaki i te tohu me te whakatakoto. Ko te whanaketanga o ēnei rīpeka he whakanui, kei te whakangungu i te wai, i te maramataka UV, me ēnei atu take tuawhenua, kia tutuki ai ki a rātou te raruraru me te huarahi i runga i te wā o te mahi o te kaihoko. Mai i tētahi pūnaha whakapuaki, ka whakapai ēnei rīpeka i te tae whakahirahira ki ngā pakenga me ngā kaihoko, ka whakapai i te kitea i te tohu me te whakahē o te kiritaki. He nui ngā tūtohu whakarite, ka whakaae ngā kaiwhakapuaki ki te whakauru i ō rātou tohu ā-motu hoki i te whakatutukitanga o ngā take tūmatawhāiti. He tino tika me te wehewehe te hanganga o te mahi whakauru, kaore he whakarereke i ngā raraunga hei whakamahi mō te whakatakoto iti. Ka tuku ki ēnei rīpeka he nui o ngā tūtohu whakarerekē, ina tonu te whakarite ki te hoatu iho rānei, ka kitea te whakarerekē, ka taea te kite i te whakarerekē. Ko te tūpono o te utu hei whakamahi i ēnei rīpeka he whaihua, ka whakakotahi ngā mahi – te tiaki, te tohu, me te whakatakoto – ki tētahi whakahaere kotahi. Heoi anō, ka taea te hanga i ēnei rīpeka i waenganui i ngā kanohi me ngā āhua e taea ana ki te whakarite i ngā huringa pakenga, ka whai hua hoki ngā pūtake whakapaku hei whakamahi i runga i ēnei āputa.