I used to own an EG before... We have discovered kung ano ang flaw ng roof design nya....

It is becuase walang anything in between nung support brace at nung sheet metal.... so with vibrations and moisture, nagdedevelop ang rust....

You need to put something in between them to prevent direct contact nung roof sheet metal nad brace support... parang gum sya or something (di ko alam ang tawag eh)... or di kaya, yung parang asphalt na layer (or flashband will do)....