** Q1: Yintoni iipaneli zophahla loboya? ** A1: Iiphaneli zophahla loboya ze-rock sandwich ziiphaneli ezidityanisiweyo ezibandakanya iimaleko ezimbini ezingaphandle zentsimbi kunye nombindi wangaphakathi woboya. Le indibaniselwano ibonelela ngokusebenza ngokugqwesileyo kwe-thermal, ukulungiswa kwesandi, kunye nokumelana nomlilo. Ingundoqo yamatye yoboya yenziwe ngelitye lentaba-mlilo yendalo, inika ukhetho oluzinzileyo kulwakhiwo lwangoku. ** Q2