Architectural Sun Louvers & Motorized Aerofoil Fins: Solar Heat Cut & Facade Cooling Optimization
Solar Shading: Passive Energy Control for Tropical Facades
In high-radiation regions across India, solar heat gain accounts for more than half of peak cooling demand in commercial office towers. Architectural aluminium louvers and motorized aerofoil fins act as an exterior sun-shield, blocking intense direct solar radiation before it hits the building's glass envelope.
Louver Typologies & 2026 Rates in India
Below is a cost and performance breakdown for popular architectural louver profiles:
HVAC Energy Savings: Calculating ROI
By shielding 70% of direct solar heat, external louvers lower the Shading Coefficient (SC) of the total facade to below 0.20. For a typical 100,000 sq ft commercial office building, this lowers central chiller requirements by 80 to 120 tons of refrigeration (TR), saving lakhs of rupees annually in electricity bills.
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