Hi all, I'm curious, I have a pretty old conservatory with that plastic sheet style roof, it gets extremely hot in summer and like ice in winter, would it be safe to put in sheets of insulation and plasterboard over? Or would it create a fire risk within that newly insulated enclosed space? Maybe over thinking but if the plastic magnifies the heat I was wondering if that would make it unsafe. Thinking of it as a cheaper way instead of having to have a whole new roof put on. Any help or ideas are greatly appreciated