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How do I prevent leakage around the base of my Ekodome?

Sealing Solutions to Protect Your Geodesic Dome from Water Intrusion

To ensure your Ekodome® stays dry and weather-tight, it’s essential to create a proper seal around the base of your dome where it meets the foundation. The best sealing method depends on the type of foundation you’re using, whether it’s a concrete pad, wooden deck, or another structure.


Recommended Base Sealing Methods

Here are common sealing solutions that help prevent moisture, rain, and groundwater from seeping into your dome:

  • Exterior-grade caulking: flexible and waterproof, ideal for small gaps or uneven surfaces

  • Silicone sealant: long-lasting and weather-resistant, great for exposed edges

  • Flashing: a metal or waterproof membrane that bridges the gap between the dome and the foundation, providing a protective overlap


Example: Using Flashing with a Custom-Fit Foundation

If your foundation has been designed to perfectly match the contour of the dome, flashing is a great solution. It wraps around the base, extending the dome’s coverage and creating a reliable moisture barrier.


Get Professional Guidance

If you’re unsure which sealing method is best for your eco dome, dome house, or greenhouse, we recommend consulting with a local contractor or builder. They can help:

  • Evaluate site-specific drainage concerns

  • Choose compatible materials for your foundation type

  • Ensure your dome stays protected through all weather conditions