 |
|
|
|
|
|
 |
|
Product Review from Environmental Building News
October 1, 2007
Alpen Fiberglass Windows—Leading the High-Performance Race
Alpen Energy Group, of Boulder, Colorado, has been a leading window technology innovator dating to the company’s founding in 1981. Since getting into pultruded fiberglass frames in 2005, the company has established a reputation as manufacturer of the world’s highest-performing windows. Among the company’s high-profile installations is a fall 2007 project to replace windows at the Rocky Mountain Institute (RMI) headquarters and home of Amory Lovins and his wife Judy Lovins in Snowmass, Colorado. Most of the RMI windows will have center-of-glass insulation values of about R-12 (U-factor 0.08), and a few of the north-facing widows will achieve center-of-glass R-values of 20 (U-factor 0.05). See table below for details on the energy and transmission properties of these windows and others from Alpen....
To read the complete article, please login below.
This article is available to members of BuildingGreen Suite
Join now for access to the entire website.
Membership in BuildingGreen Suite gives you access to all of the product descriptions, articles, project case studies, and other content on BuildingGreen.com. Regular individual membership costs $199.00 per year, however many membership options are available.
More about the benefits of membership...
|
|
|
|
|
|
|
|
|
|
|