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Green your facade and rooftop

Living insulation that cools the building — and the neighborhood around it.

CoolMaps › Cool Tips Pro › Green your facade and rooftop

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Quick answer

Green walls and green roofs can lower facade surface temperature by around 5°C, cut noise by 30%, and improve insulation, biodiversity, and stormwater absorption.

Climbing plants, green walls, and green roofs create a layer of shade and evapotranspiration that limits how much facades and rooftops heat up, while boosting biodiversity and air quality.

-5°Con facade surface

30%less noise

+local biodiversity

🔬 How it works

Plants block part of the direct solar radiation and release moisture through evapotranspiration, cooling the surrounding air. The planting substrate also acts as extra thermal insulation for the structure.

✅ Key benefits

Lowers the surface temperature of sun-exposed walls and roofs
Improves thermal insulation both summer and winter
Absorbs part of the rainwater, reducing runoff
Boosts urban biodiversity and improves the building's image

🛠️ Getting it done

Assess the load-bearing capacity of the roof or wall (substrate and water weight)
Choose species suited to the local climate and low water needs
Install automatic irrigation or a rainwater harvesting system
Bring in a specialized landscaper for the supporting structure and waterproofing
Plan for seasonal maintenance (pruning, weeding, irrigation checks)

💡 ROI: costs vary widely depending on scope (simple climbing plants vs. an intensive green roof), but insulation savings and higher property value pay it back over time.

⚠️ Poorly maintained or poorly designed greening can damage the building's waterproofing — always have the structure checked before starting work.

❄️ Add your spot to CoolMaps

A green, shaded space is a real refuge for your neighbors in summer.

Add a Cool-Spot ➕