About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Engineers Develop ‘Green’ Roofs That Keep Warm in Winter, Cool in Summer

by Medindia Content Team on October 14, 2007 at 4:06 PM
Font : A-A+

Engineers Develop ‘Green’ Roofs That Keep Warm in Winter, Cool in Summer

Two research engineers are claiming to have developed prototypes of energy-efficient roofs and attics.

These `Green' roofs could keep you warm in winter and cool in summer.

Advertisement

"From seasonal simulations that I've been able to do, it could mean up to an eight percent reduction on a cooling bill," said research engineer William Miller.

Miller and another research engineer Jan Kosny developed the technology at Oak Ridge National Laboratory in Tennessee.

While on the surface 8 percent might not seem like a huge number, if just half of the homeowners in the United States installed the new roof system, they could save 100 trillion BTUs of energy combined - the equivalent of more than 800 million gallons of gas.
Advertisement

According to Miller, the prototype system combines four different technologies into one high-efficiency roof: pigments that reflect infrared light, barrel-shaped tiles (instead of shingles), radiant barriers, and phase-changing materials.

The radiant barriers are thin layers of metal or aluminium foil that help limit the amount of heat that transfers into the attic.

In the current design, those barriers sandwich the fourth technology: a layer of phase-changing material. This is made up of tiny beads of wax with interiors designed to melt at particular temperatures.

During the day, the beads absorb heat from the sun and melt. At night, as the surrounding air cools, the beads give off the heat and solidify.

The neat part is that it uses standard materials already available to contractors, but getting people to adopt a new kind of roof could be a challenge.

"It's a very simple process but the politics and the realism of it is the most difficult part," he said.

Miller and Kosny found that the roof system helped reduce attic temperature by 22 degrees Fahrenheit during a typical summer afternoon.

Source: ANI
SRM/M
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement
News Category
What's New on Medindia
Fermented Skin Care
Television Binge-Watching May Boost the Risk of Deadly Blood Clots
Western Diet may Augment the Risk of Autoimmune Diseases
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.


Recommended Reading
'Green' Leather Soon to Be in Vogue
Fashionmongers who follow every latest trend in leather bags may soon have a wider, 'greener' ......
Cool Green Houses Leads to Cool Green Cities
Scientists in Britain say roofs and walls green with vegetation can reduce the temperature of ......
Volkswagen's Polo Emerges as Top Green Motoring Vehicle
The diesel version of Volkswagen's Polo has emerged as the top green motoring vehicle, beating ......

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2022

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
open close
CONSULT A DOCTOR
I have read and I do accept terms of use - Telemedicine

Advantage Medindia: FREE subscription for 'Personalised Health & Wellness website with consultation' (Value Rs.300/-)