Ukuguquguquka kweeprofayili ze-aluminium louver kuvumela ekudalweni koyilo lwesilingi yesiko olunokuthi lulungelelaniswe neemfuno ezithile zeprojekthi. Nokuba yindawo enkulu yentengiso, indawo yokuhlala, okanye ipatio yangaphandle, iisilingi ze-aluminiyam yesiko louver zinokuyilwa ukuba zilingane nemilinganiselo ekhethekileyo kunye noyilo lwendawo, ukubonelela ngenkangeleko engenamthungo nedibeneyo.