Sounds like an oxymoron doesn't it? I recently looked at purchasing a house that is part of a revitalization effort in a small main street town. The house has a crawl space from 1900 era. Given most houses in this neighborhood (southern Indiana on the Ohio basin) have moldy, failing, substandard foundations, this one renovated well. The builder replaced any joists needed, installed a vapor barrier, new plumbing, everything in the house is new. No odors, no rot, no moisture, everything is up to modern standard. HVAC is located on the living floor and uses a trunkline through the attic. When viewing the crawl area via the little cellar created originally by the coal furnace, it was as fresh and neutral as any basement, if not more so.
My question is, given the organization spent well over 100K to renovate the house, can one not expect the crawl foundation to revert to its former state over time, ie. moldy, damp? The walls of the foundation are brick too = could wick moisture. Am I looking at the pinnacle moment of this house's future whereby it will go downhill from here? Crawl spaces are simply substandard by any measure and in any condition usually.
The builder sealed the six crawl space vents on this 1100 sf house. So there are no longer any vents. I'm suspicious of that too.