Say yurongan ed paway na panagligliwaan so walad paway lapud kaliberliber to, tan say materyal a panagpili so mainget. Maslak et gawa itan ed saray materyales a singa say grita, marmol, kiew, andiay mantsa, asero, tan arum nira.
(1) Pankakasakey na Sakey a kimey, manunan inyan ed saray parke, komunidad, gilig na karsada tan arum niran pasen ed paway. Uusaren na dakel a totoo, uusaren parad kaguloan ed paway, painawa, tan arum nira;
(2) Saray estetika Saray epekto na pakanengneng so manunan mitunosan ed kaliberliber ed paway. Maslak ed sikara et manguusar na saray natural ya materyales a singa say kiew tan linen, ya makapamalsa ed estilo, marakep tan elegan, tan aliwan mainomay ya magmaliw a maluho.
(3) Praktikal a panangipuera ed apoy, anti{1}-sampo, anti{}} so man-apag-apag ed arum a totoo ya ag-ira mangugulo ed balang sakey;
(4) Ag-uusaren na saray materyalial iray makasamal odino mapeligron materyales tan mainomay a linisan. Lapud espisyal ya pangusar ed paway, say inkalapagan a kiew so manguusar na plastik a kiew, say plastik a kiew so walaan na mabiskeg ya anti{2} say epekto na panag-usar, tan say marmol odino saray grita so mankaukolan na maong a panag-aksion pian naamper so pakaderal na too. Kanian, say asero ya istruktura so kaukolan ya tambalen ya anti{4} na panagtambal, ag-onuran tan too{5} baleg so aderal.
