Green term defined: solar reflectance index

harrisonburgWhen looking at cities on Google earth, we see a lot of dark surfaces. Most roofing is a dark color. Pavement is typically a dark color. It appears that even the majority of our cars are dark. This all contributes to something called “heat island impact.” To combat this a designer can use light colored materials for pavement, roofing, and reduce paved areas on a site.

20140619_141237

The solar reflectance index (SRI) is a measure of the constructed surface’s ability to stay cool in the sun by reflecting solar radiation and emitting thermal radiation. A standard black surface has a SRI of 0 and a standard white surface has a SRI of 100. In order to calculate the SRI of a material you use the solar reflectance and thermal emittance from the cool roof rating council standard. 263878_10150252705649932_76986384931_7060298_6065340_nYou can offset “heat island impact” by using white roofing, white concrete for paving, and vegetative roofs.

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Related Posts

Peruvian Architecture

Peruvian Architecture

This past month, I had the opportunity to travel to Peru. I am always grateful for the opportunity to travel ...
Rock the Ridge to support MTC

Rock the Ridge to support MTC

It is time to ROCK THE RIDGE to support MTC! MTC has programs including agriculture production, architecture, auto ...
Harrisonburg Architect named in top 100 for 2024

Harrisonburg Architect named in top 100 for 2024

Charles Hendricks Recognized as one of the 100 top Architects of 2024  Fixr.com recently revealed its annual ...
Project Update: Harrisonburg Rockingham Child Day Care Center

Project Update: Harrisonburg Rockingham Child Day Care Center

The Harrisonburg Rockingham Child Day Care Center is heading into the final weeks of construction for phase 1. ...