With the skirting I had left over from the girls place, I replaced the south end of mine. It was the vented kind before, and we have had occasional issues with water lines freezing when there was too much wind with a cold front. This skirting is solid and will let less air through which should help with that.
Lisa and Jim are adding to their paved area up by the garage and had a trailer load of dirt/sod that was skimmed off to make room for the new blacktop. It took me a week or two to get it all shovelled off and put on the septic tank and lines. The weather was not helping me at all with rain then freezing it all together.