The Project PA Hemp Home at 506 Spruce St. saw Pennsylvania’s first complete renovation of a blighted house using hemp-based materials. “Hempcrete is more expensive right now to install, mostly due to the fact that we’re importing the materials (from Europe, which is ahead of the U.S. in using hemp for construction),” said Cameron McIntosh of Allentown-based Americhanvre, which installed the Hempcrete. “But in the future, once we have access to local materials, we do believe that the cost of Hempcrete is going to come down quite a bit. One of the reasons why this project was funded was to demonstrate that it is actually more affordable to own and operate a Hempcrete home.