Upon completion of a CEU Course at AIA 2013 on “The Future of Building Materials and Their Impact on How We Build”, Building Scientist Lucas Hamilton was asked the following question:
“What does air tightness have to do with air quality? How does the tightness influence the air inside? It doesn’t make any sense?”
When the building envelope was leaky, we had three to four times the volume of the building being changed every hour by fresh air from outside — uncontrolled in the building envelope. Now, with tighter buildings we don’t allow that. So, you have lost all the fresh air you had coming through the walls. That’s why it is so important. That is the influence today.
If you’re at AIA, stop by booth #2108 to continue the discussion with Lucas and our team of Building Knowledge experts. Also, feel free to add your thoughts below — comments and questions are always welcome!