Some drawings and details of the greenhouse. We have used 200UB and 100UC for the main structure. They are set out on the 1050 x 1050 grid. The front entrance of the design faces south so there are only a few windows, which provide cross ventilation and some natural light into the classrooms. The greenhouse faces north to absorb the most sun. A vented glass wall separates the two compartments so the warm air can pass through to the classroom from the greenhouse.