Resource Library
What is the Building Envelope Performance (BEP) value?
Video
Overview
Watch the video to learn how the BEP value is used to describe the overall thermal performance of a building envelope.
From Oak Ridge National Laboratory
This video explains how the overall thermal performance of the building envelope can be described using the Building Envelope Performance (BEP) value.
Related Resources
This Old House | Net Zero Comes Together
Watch this tour of a 100 year-old home turned net zero, and hear about some of the challenges the builders faced.