Ko te wheketere uku wera (HMA) he whare e whakaputa ana i te ara uku mō te hanga rori. Ka whakakotahihia e ia te kirikiri (pēnei i te kirikiri, te onepu, me te kōhatu) me te sima uku, he hua kei roto i te hinu, i ngā pāmahana teitei hei hanga i tētahi rauemi ara maeneene, pakari, me te ngāwari.
He maha ngā wāhanga matua o tētahi tipu HMA noa:
Ka tīmata te tukanga mā te whāngai i te kirikiri ki roto i te pū whakamaroke. Ka whakamahanahia te kirikiri, ka whakamarokehia, kātahi ka whakaranua ki te sima uku i roto i te pourewa whakaranu. Ka āta tirotirohia ngā ōwehenga tika o te kirikiri me te sima uku kia tutuki ai ngā paerewa motuhake.
I muri i te whakaranu, ka whakawhitia te HMA ki ngā whare rokiroki. Ina rite mō te whakamahi, ka utaina ki runga i ngā taraka ka tukuna ki ngā papa hanga, ka whakatakotoria, ka whakakīia ki ngā roera me ētahi atu taputapu taumaha.
E whakamahia whānuitia ana te HMA mō te hanga me te tiaki i ngā rori, ngā huarahi tere, ngā taunga rererangi, me ētahi atu mata kua whakakikoruatia. Nā tōna pakari me tōna ngāwari, he rauemi pai mō ngā wāhi e nui ana te haere o te tangata.
He maha ngā painga o te HMA i runga i ētahi atu rauemi papa:
He wāhi nui te wheketere uku wera mō te whakaputa i te papa uku kounga teitei. Mā te mārama ki tana mahi me ōna wāhanga matua ka āwhina i a koe ki te mārama ki te uauatanga me te hiranga o te hanga rori. Ahakoa he kaimahi kirimana koe, he miihini, he hiahia noa rānei ki te mōhio ki te hanganga o ngā rori, ka whakaratohia e tēnei aratohu he tirohanga whai hua ki te ao o te hanga uku.