- Excavation:
- Depth: Dig about 8-10 feet deep to benefit from the Earth’s insulation. The depth might vary depending on your region’s frost line.
- Width & Length: Depending on your needs. A standard size might be 10×20 feet, but adjust as necessary.
- Walls:
- Construct walls using bricks, stones, or earthbags. Reinforce with concrete if needed.
Insulate the northern wall to retain heat. You can use straw bales, foam insulation, or other insulating materials.
- Roofing:
Use UV-resistant greenhouse plastic, polycarbonate panels, or glass for the roofing.
Ensure the roof is slanted to allow maximum sunlight and for rain and snow runoff.
- Flooring:
A gravel floor can enhance drainage. Optionally, you can use concrete or even maintain a natural soil floor, depending on preference.
- Ventilation:
Incorporate vents or windows on the roof or at the higher end of the sloping roof for hot air to escape.
Consider adding a door at each end of the greenhouse for airflow and accessibility.
