A friend and I were concocting plans for a larger greenhouse on his property. We were thinking of making a hoop house, but the top section, instead of making it a convex curve, if we make it concave, it can collect rainwater and run to a central drain that could then run the water to a storage tank.
If the drain is adequate, there shouldn't be a problem with weight from the water because it will be draining off. We thought of the issue of snow weight in the winter, but if the greenhouse is doing it's job, and is warmer, the snow should melt and run into the drain, right?
Does anyone see any problems with this plan? It was just an idea, but it seems like there must be a problem with it or I'd see some constructed this way.
Any input appreciated.