The male and female design weather-stripping between panels as well as the door edging weather-stripping squeeze tightly against the critical surfaces when the door is closed, and immediately separate from each other when the door is opened. The final result is a weathertight, heat transmission blocking door with weather-stripping that is good for many years. The folding doors furnished with windows are also very weathertight. In the fully glazed doors, much of the surface is glass, making it somewhat less thermally efficient.