I’m in California. Every home in my area is either a slab or a crawl. Going through the training I’m a bit lost on the crawl space vapor barrier. I've purchased these crawl space vapor barrier from Spire Cover store. Should EVERY crawl space have the full plastic lined vapor barrier installed or only the ones that are encapsulated? If so, do you mark that as a defect or just ‘monitor’?
thanks all!