Stories

Knowledge from – Why We Removed Our Own Garden After 7 Years

1. Why did CHAAS remove its own rooftop garden?

We removed it to inspect the roof after seven years of continuous use. It was a deliberate decision to understand how the waterproofing, drainage and roof slab had performed over time. The inspection gave us real evidence instead of assumptions.

2. Do rooftop gardens damage the roof?

Not when they are properly designed and maintained. Our inspection found no structural damage or water accumulation beneath the system. A rooftop garden should protect the roof through proper drainage, lightweight materials and careful detailing.

3. How long can a rooftop garden last?

A well-designed rooftop garden can perform successfully for many years. Its lifespan depends on good waterproofing, efficient drainage, suitable plant selection and regular maintenance rather than the age of the garden itself.

4. What happens beneath a rooftop garden?

Beneath the visible plants lies an engineered system of drainage layers, protective membranes and growing media. These layers allow excess water to drain while protecting the roof structure below. Regular inspection ensures the system continues to perform as intended.

5. Is periodic inspection necessary?

Yes. Like any building system, rooftop gardens benefit from periodic inspections. Checking drainage outlets, waterproofing details and plant health helps identify small issues before they become major problems.

6. Why does CHAAS believe in evidence-based design?

Good design should be supported by observation, not assumptions. Inspecting our own rooftop after seven years allowed us to refine our methods and confidently recommend systems based on real-world performance.

7. What did this project teach CHAAS?

Innovation is incomplete without verification. Testing our own rooftop gave us the confidence to improve our designs and answer clients' questions honestly, using experience rather than theory.

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