What does this research mean for the field?

Optimized building retrofit packages, particularly those including roof coatings, can reduce city-wide summer building energy use by 32%, cut anthropogenic heat emissions by over 50%, and lower peak summer air temperatures by up to 3.79°C. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to evaluate how building retrofits can enhance energy efficiency while minimizing heat emissions.

May 29, 2026Open Access

Improving energy efficiency while reducing anthropogenic heat from buildings: how retrofits influence the building stock and urban microclimate in Los Angeles

Puntos clave

The aim is to evaluate how building retrofits can enhance energy efficiency while minimizing heat emissions.
Evaluated various building retrofit measures for energy conservation and heat emission reduction.
Assessed the impact of retrofit packages on city-wide summer energy use and anthropogenic heat emissions.
Developed an integrated framework for retrofit planning and urban heat mitigation.
Optimized retrofit measures can reduce city-wide summer building energy use by 32%.
Adding roof coatings can decrease anthropogenic heat emissions by over 50%.
Implementation of these strategies can lower peak summer air temperatures by up to 3.79°C.

Resumen

• Evaluate building retrofit measures for energy savings and heat emission reductions. • An optimized retrofit package can cut city-wide summer building energy use by 32% • Adding roof coatings can slash building AH emissions by more than 50% • This strategy also reduces peak summer air temperatures by up to 3.79°C. • Provide a framework for integrated building retrofit planning and urban heat mitigation.

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