Biraha dahaarka leh ee dahaarka leh ee alwaaxku waa qurxin la sameeyay iyadoo lagu dabaqayo habab hadhuudh alwaax ah oo lagu dabaqo substrates sida birta galvanized iyo aluminium iyadoo loo marayo hababka sida dahaarka rullaluistuadka, lamination, ama daabacaadda wareejinta kulaylka. Faa'iidadooda aasaasiga ah waxay ku jirtaa "ku beddelashada alwaax bir ah" - ilaalinta muuqaalka muuqaalka iyo naqshadaynta alwaax iyadoo laga fogaanayo cilladaha alwaax adag, sida u nuglaanshaha qudhunka, ololka, iyo dayactirka oo adag. Codsiyada xayndaabka, waxay ugu horreyn u adeegaan laba door: Marka hore, sida qaybaha xayndaabka ee horay loo sii diyaariyey (sida darfaha deyrarka iyo dhejiska); waxay bixiyaan rakibaad degdeg ah, iska caabin dabka (class B1), iska caabinta cimilada, iska caabinta UV, oo uma baahna rinjiyeyn dambe. Waa in fiiro gaar ah loo yeesho ka-hortagga miridhku ee kala-goysyada, iyo cidhifyada la jaray waa in lagu dahaadhay qalab aan miridhku lahayn. Marka labaad, sida lakabka dhamaystirka dusha sare ee xayndaabka qaab dhismeedka birta, kor u qaadista muuqaalka guud iyada oo loo marayo ka-hortagga ka dib. Biraha dahaarka leh ee alwaaxdu waxay muujinayaan qaabab alwaax ah oo macquul ah oo lagu gaaro dahaadhida hore ee rinjiga u adkaysta cimilada sare ama rinjiga fluorocarbon dusheeda daawaha aluminium ama birta, isku darka bilicda alwaax iyo adkaysiga birta. Waxaa si weyn loogu isticmaalaa mashaariicda dhismaha ee cusub ee biraha balakoonka, qaboojiyaha qaboojiyaha qaboojiyaha, iyo qaybo ka mid ah waddooyinka, waxayna sidoo kale ku habboon yihiin dayactirka iyo cusboonaysiinta biraha hadda jira.