To clean an old greenhouse, thoroughly wash all structural parts and glazing material with appropriate cleaning solutions, considering the material type to avoid damage.
Here's a detailed guide to cleaning your old greenhouse:
1. Preparation is Key:
- Timing: Choose a mild, overcast day. Direct sunlight can cause cleaning solutions to dry too quickly, leaving streaks.
- Safety First: Wear appropriate protective gear, including gloves and eye protection.
- Gather Supplies:
- Buckets
- Hose with adjustable nozzle
- Soft brushes and sponges
- Disinfectant or detergent (check manufacturer's instructions)
- Cleaning solution suitable for your glazing material (see below)
- Scrubbing brush or stiff broom
- Ladder or step stool (if needed)
2. Cleaning the Structure:
- Remove Debris: Start by removing all plants, pots, and other items from the greenhouse. Sweep or vacuum up loose debris from the floor and staging.
- Wash Structural Parts: Using a hot solution of disinfectant or detergent (following manufacturer's directions for dilution and use), scrub all structural parts of the greenhouse. This includes the frame, supports, and any staging or shelving. A scrubbing brush or stiff broom can be helpful for removing stubborn dirt and algae.
- Rinse Thoroughly: Rinse all surfaces thoroughly with clean water from the hose.
3. Cleaning the Glazing (Glass or Plastic):
This is a crucial step, as clean glazing allows maximum light transmission to your plants.
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Identify Glazing Material: Determine whether your greenhouse has glass or plastic glazing (polycarbonate, acrylic, or polyethylene film). Different materials require different cleaning approaches.
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Test Cleaning Solution: Important for plastic glazing! Before applying any cleaning solution to the entire greenhouse, test it on a small, inconspicuous area to ensure it does not damage or cloud the plastic.
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Washing the Glazing:
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Glass: Use a solution of mild detergent and warm water. Apply the solution with a soft brush or sponge, scrubbing gently to remove dirt and algae. Rinse thoroughly with clean water. A squeegee can help prevent streaks.
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Plastic (Polycarbonate or Acrylic): Use a mild detergent specifically designed for plastics or a solution of warm water and a small amount of dish soap (without additives like bleach or ammonia). Avoid abrasive cleaners or scrub brushes, as these can scratch the plastic. Rinse thoroughly with clean water. Dry with a soft cloth to prevent water spots.
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Plastic Film (Polyethylene): This is more delicate. Use only warm water and a soft sponge. Avoid any harsh chemicals or abrasive materials. Be careful not to tear the film.
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Clean Inside and Out: Wash both the inside and outside surfaces of the glazing for optimal light transmission.
4. Disinfecting (Optional):
- If you've had problems with pests or diseases in your greenhouse, consider disinfecting it after cleaning. Use a greenhouse-specific disinfectant according to the manufacturer's instructions. This can help prevent future problems.
5. Final Touches:
- Clean Gutters and Downspouts: Remove any debris from gutters and downspouts to ensure proper drainage.
- Inspect for Damage: While cleaning, inspect the greenhouse for any damage, such as broken panes of glass, loose screws, or damaged framework. Repair these problems promptly.
- Replace Items: Once the greenhouse is completely dry, return your plants, pots, and other items.
By following these steps, you can thoroughly clean your old greenhouse and create a healthier and more productive environment for your plants.
