Because the ductwork is out of the attic and running in conditioned space through the pre-cut openings of the
XJ 85® I-joist.

In addition to helping lower heating and cooling loads, the XJ 85 I-joist is lightweight and easy to install. This Georgia-Pacific engineered lumber innovation can help differentiate you as a better builder with smarter solutions so you can find your Happy Place too.

What you don’t see matters.™
Build it better.®