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Solar-Reflective "Cool" Walls: Benefits, Technologies, and Implementation

Increasing the albedo (solar reflectance) of a building's envelope reduces solar heat gain in the cooling season. Raising envelope albedo can also cool the outside air, boosting energy savings and demand reduction by decreasing the air temperature difference across the building envelope. Lowering urban surface and air temperatures improves air quality by slowing the reactions that produce smog, and delays global warming through negative radiative forcing ("global cooling"). Current data are insufficient to accurately predict savings impacts for different cool wall materials; which prevents cool wall technology from being included in building standards or utility rebate programs.

Program Information
Funding Organization: 
California Energy Commission
Program Area: 
Buildings
Scope
Funded Performer: 
Lawrence Berkeley National Laboratory
Agreement Total: 
$2,500,000
Match Total: 
$610,800
Project Start Date: 
April 17, 2015
Project End Date: 
June 30, 2018
Project Details
Ongoing Initiative or Research Project: 
Research Project
Grid, Whole Building, or Technology: 
Technology
Technology Type: 
Enclosure
Sub-Technology Type: 
Enclosure - Wall
Building Type: 
Single Family
New or Existing: 
New
DR Focus?: 
No
Code/Standard Focus?: 
No
Locale
BA Climate Region: 
Hot-Dry/Mixed-Dry
IECC Climate Region: 
Zone 3
City: 
Berkeley
State: 
California