If we are thinking of implementing and projecting a winter garden, we must first clarify the purpose for which we want to build it. It can be a building for year-round use, in which it will have to attract in the winter, or for the construction of seasonal, where it will not droit in winter, and there will be, for example, only hibernate some plants.
Winter Gardens designed for active year-round use need especially very good insulation. The glass must certainly not be simple, but we must use a special insulating, either double or straight triple. The use of polycarbonate glass is also not recommended.
The use of special insulating glass in the Winter Garden saves part of the heating costs in the coming years. Your investment pays off.