Ngā PaingaNā te kaha tino kaha. He nui ake te kaha kume me te kaha pēhi o te maitai i tō ngā rauemi pēnei i te raima, ā, he iti ake te wāhanga whakawhiti o ngā wāhanga mō te kawenga kotahi; ko te taumaha-ake o te maitai he 1/3 ki te 1/5 noa iho o te taumaha o ngā hanganga raima, ka taea te whakaiti i ngā whakaritenga o te kaha pupuri turanga, nō reira he tino pai mō ngā kaupapa i runga i ngā turanga oneone ngohengohe. Tuarua, he teitei te whai huatanga o te hanga. Neke atu i te 80% o ngā wāhanga ka taea te hanga i mua i roto i ngā wheketere mā te tikanga paerewa, ā, ka huihuia ki te papaanga mā te pūtu, mā te whakarewa rānei, ka taea te whakaiti i te huringa hanga mō te 30%~50% i runga ake i ngā hanganga raima. Tuatoru, he pai ake i roto i te ārai-rū whenua me te Hanga Kakariki. Ko te kaha pai o te maitai ko te tikanga ka taea te whakarerekē me te mimiti i te kaha i te wā o te rū whenua, nō reira he teitei ake te taumata ātete rū whenua; Hei tāpiri, neke atu i te 90% o te maitai ka hangarua, ka whakaiti i te para hanga.
Ngā ngoikoretangaKo te raru matua ko te ātete ngoikore ki te waikura. Ko te pānga o te haumākū ki te taiao, pērā i te rehu tote i te takutai moana, ka waikura noa iho, ā, muri iho ka tiakina te paninga ārai-waikura i ia 5-10 tau, ka piki ake ngā utu mō te wā roa. Tuarua, kāore e ranea tōna ātete ahi; ka tino heke te kaha o te maitai ina neke atu i te 600℃ te pāmahana, me whakamahi he paninga ārai ahi, he paninga ārai ahi rānei hei whakatutuki i ngā whakaritenga ātete ahi o ngā whare rerekē. Haunga tēnā, he nui ake te utu tīmatanga; ko te utu mō te hoko me te tukatuka maitai mō ngā pūnaha whare whānui, whare teitei rānei he 10%-20% teitei ake i ērā o ngā hanganga raima noa, engari ka taea te whakaiti i te utu katoa o te huringa ora mā te tiaki tika me te tiaki mō te wā roa.
