The final steps are to lay down terrablock insulation to help insulate the space. After that we put down our 20ml thick crawlspace vapor barrier. This allow us to get an air tight seal to keep all of the unwanted outside entities from getting into the home and into the air you breathe. The final thing to do is spray the rim joist with our two part expanding spray foam to stop the the of the unwanted dust, allergens, and humidity from getting in the home. Now the space is encapsulated and treated properly and will not give homeowners any more problems.