Alpen HPP Featured in Green Building Advisor Article for Passive House Achievements
In an article published by Green Building Advisor, Alpen HPP is recognized as being one of five North American window manufacturers to have sought and achieved Passive House Certification by the Passive House Institute US (PHIUS) or Passive House International (PHI). Through Alpen’s efforts to promote and participate in the Passive House movement, the company’s
July 30, 2013