Explanatory Data

White Roofing and Urban Temperatures: http://whiteroofproject.org/wp-content/uploads/2012/03/Academic-White-Roofs-Urban

EPA Heat Island Reduction Program, 2009 Presentation: http://whiteroofproject.org/wp-content/uploads/2012/03/CRRC_US_EPA_presentation.pdf


Reducing Urban Heat Islands, a compendium of strategies from the EPA: http://www.globalcoolcities.org/?page_id=33

Using the Los Angeles basin as a model, Lawrence Berkley National Laboratory made some projections based on the conversion of 15% of dark surfaces to cool surfaces. In this model, summer temperatures dropped 6°F (heatisland.lbl.gov/LEARN/LAIsland/).  This matters for both smog and energy use reduction.

In Los Angeles “…peak power rises 3% for every 0.5°F rise in daily maximum temperature…about 1-1.5 gigawatts of power are used to compensate the impact of the heat island… costing the Los Angeles ratepayers about $100,000 per hour, about $100 million per year” (heatisland.lbl.gov/LEARN/LAIsland/).

New York City Specific

Snapshot of the New York City Department of Design and Construction’s Cool and Green Roofing Manual:
http://whiteroofproject.org/wp-content/uploads/2012/03/Snapshot-DDD-NYC-roofing.pdf (This excerpt only includes only the section on white roofing.)

Sustainable South Bronx, Cool Surfaces Combat NYC pollution: http://www.ewire.com/news-releases/scientists-sustainable-south-bronx–cool-surfaces-can-combat-nyc-pollution-save-energy-improve-health–green-collar-jobs-needed/

The full report is available through the SSBx website: http://www.ssbx.org

New York City’s new white roofing legislation and building codes: http://whiteroofproject.org/wp-content/uploads/2012/03/NYC-Cool-Roof-Legislation-Local-Law-21.pdf

3 Responses to Urban Heat Islands

  1. Kristine says:

    Hi!!!I’m wondering how can the white roof projuct reduce the heat island effect?Thank you so much!!!

  2. Hi Kristine! You can download our Urban Heat Island presentation at the link above: http://www.globalcoolcities.org/?page_id=33 it should download as a pdf.


  3. Thanks for posting “White Roof Project | Urban Heat
    Islands”. I personallymay certainly end up being coming back for
    far more reading through and commenting here
    soon. I am grateful, Raymon

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