Nā ngā kaihanga tītī pūrehe e whai take ana i te whenua ā-waka, e whakatau ana ki te whakamahere me te hanga i ngā waka e āhei ana ki te hokihoki i ngā momo tītī i raro i te haumaru me te pai o te mahi. Kia whakapakari i ngā kaupapa ingoa me ngā rauropi pai, ka hangaia e ngā kaihanga nei ngā tītī pūrehe e paunga ai ki ngā ture haumaru me ngā ture pai huarahi. He maha ngā raarangi o ngā moemoenga, he rite rawa atu ngā waehanga o ngā pokonui, ngā pūkengemanga, me ngā whakatakoto hei whakamana i ngā hiahia kaimahi katoa. Ko te mahi hanga e hāngai ana i ngā momo hanga whakatuturu, e kitea ana i te whakawhanake i te whakauru, i te whakangungu rorohiko, me te whakamātau tuatahi, hei whakamana i te whanaketanga me te tiakiwhenua o ia waka. Ka noho pūmau hoki ngā kaihanga tītī pūrehe i runga i ngā whakarerekē ture hou me ngā whakangungu hunga rorohiko, ka whakauru i ngā momo hoko e pai ake ana i te whakaititanga tītī, i ngā rangahau haumaru, me ngā hanga e pai ana ki te taiao, ki ngā hua hei whakamana i ngā hiahia huri noa o te wharepaki.