Converting a porch to a greenhouse
We have 10ft deep and 14 wide porch with a concrete floor. The roof is actually our bedroom so I would have to put some glazing on the south and east facing side. The north and west sides are walls of two different rooms. In the winter the porch is pretty well lit and so I was wondering if converting it into a greenhouse of a sort is worth while. I will be housing mostly tropical plants so it cannot probably go below 45 or so.
Currently, the ceiling is supported by wide (about 2ft) brick columns. The header is on top of these columns and the joists end on the header. I was thinking to replace the brick supports with say 6x6 posts very 4 feet or so. This is mainly to increase the amount of exposure to the sun. Do you think that is a good idea? Any advise will be appreciated.