So in my basement I have insulation that was put up by the builder. My first question is what is this type of insulation called?
The second question I have pertains to finishing the basement. I plan on framing the whole basement and assume that I need a vapor barrier (live in the Maryland area) and insulation behind my walls. The insulation is already on the walls, but doesn't go all the way to the floor in all spots (maybe 3-4" short in some spots). Can I leave the insulation on the walls as is, or am I going to need to rip it all off to put up a proper vapor barrier and do better insulating?