Hey all, So I have a black commodore VS so it gets very hot inside it! It has its 2nd roof lining (and cardboard/ backing board) in it as the first one sagged and the board just cooked and turned to dust. I'm starting to see this happening in my 2nd one now as its sagged from the heat and warped the board, its cooked so when trying to push up it starts cracking. The backing boards are hard to come by at all and now mine is damaged I am unsure where to go or what to do to fix this issue? Someone please help or refer me to someone that maybe makes custom boards that will fix this happening again like maybe fiber glass backing boards???