Retractable white roof for passive heating /cooling ?? Dual season roofing idea?
Last summer my top floor apartment was over 115 degrees indoors with blinds closed ! In a recent email to my landlord to report a broken mailbox I suggested the possibility of painting the apartment buildings roof white . In reward for reporting the mailbox he says I could paint the roof but only above my apartment . Cool . He says that the insulation was not adequate when built . The apartment has also gotten down to 30' in winter so I can only guess how cold it would get in here without the current black roof.
QUESTION ; Are there any ideas to help solve both seasonal issues ? I can't re-insulate because I rent . I was thinking of a retractable white cover for hot summer days that can be removed in autumn . Or maybe even a white paint that would insulate against cold ?? An original idea was something like Bubble foil but I doubt that would stand up to weather. Any suggestion would be great .