1. Can rooftop gardens reduce indoor temperature?
Yes. Vegetation shades the roof, reduces heat absorption and helps improve indoor thermal comfort. In this project, the homeowner observed a significant reduction in rooftop surface temperature compared to the untreated roof.
2. Why are AAC blocks used in rooftop gardens?
AAC blocks are lightweight, reducing the load on the roof while providing sufficient strength for planter edges and landscape features. They are an excellent alternative to conventional bricks for rooftop applications.
3. What is the best growing medium for rooftop gardens?
Traditional soil is often heavy. Today, lightweight mixes containing compost, cocopeat and other engineered materials provide better drainage, reduce weight and support healthy root growth.
4. Which plants are suitable for rooftop gardens?
Plant selection depends on climate, sunlight, wind exposure and maintenance. Hardy species such as Eugenia, Thuja, Adenium and drought-tolerant ornamental plants generally perform well when properly maintained.
5. Which irrigation system is better—sprinkler or drip?
Both have their uses, but drip irrigation is generally more efficient. It delivers water directly to the root zone, reduces evaporation and conserves water while keeping plants healthier.
6. Can rooftop gardens survive cyclones and extreme weather?
Yes, when they are properly designed. Plant selection, secure installation, lightweight systems and regular maintenance all improve resilience. This rooftop successfully withstood two major cyclones while remaining healthy.
7. What did this project teach CHAAS?
This rooftop taught us that innovation begins with observation. Every challenge became an opportunity to improve—from lighter materials and better irrigation to smarter planting systems. It remains the project that shaped the philosophy of CHAAS.