Will my greenhouse be waterproof?
No greenhouse is completely waterproof, especially when it is newly installed. However, you can significantly reduce the likelihood of leaks by applying silicone in key areas during assembly. It is best to apply the silicone while setting up the greenhouse—before the glass is installed—when the frame is clean and more receptive to bonding.
The main areas to seal are:
- Eave Corners: Apply silicone from the inside to seal these corners, which are common sources of leaks.
- Base Corners: Seal the corners where the two base sections meet, as these are also prone to gaps.
These are the primary gaps to address during the initial assembly. After completing the setup, inspect for any additional gaps and seal them with silicone as needed.
It is generally not recommended to seal the gap between the metal base of the greenhouse and the paving slabs or concrete for two reasons:
- Effectiveness: It is challenging to seal this gap effectively.
- Drainage: Allowing water to drain out through this gap can help prevent water accumulation inside the greenhouse.
However, if you choose to seal this gap, consider raising the greenhouse by about 5mm, applying a black bitumen-based sealant, and then removing the packers. This method compresses the sealant to form a tighter seal. If a perfect seal is not achieved, you can further reinforce it by painting the joint with a bitumen paint.
Alternatively, constructing a brick base for the greenhouse can help avoid issues related to sealing at the base entirely. Remember to apply silicone around all base corners and mid-joints to ensure maximum protection against leaks.
