The Starter System is a great starting tool to control your humidity and moisture in your crawlspace. But the Starter System only covers the floor and 4 inches up the wall with clean space. Even though it is great for climate control, it does not offer the full humidity protection for your crawlspace.
Full Encapsulation is the same as the Starter System but it covers the entirety of your crawlspace. This means that every inch of your crawlspace, from your floor to the walls, will be protected by clean space, offering the maximum amount of protection against humidity and moisture.