I just purchased a home that is 15 years old and there was some mold on the joists that was remediaed before I bought it. Now the crawl space does not have a vapor barrier only gravel and dirt. It is vented. Is it too late to install a vapor barrier to prevent further mold and moisture damage?
Check under the gravel for the 6mil. plastic sheeting. If not present, I'd move the gravel to install one on the dirt. 15 year old house should have plywood or osb (vapor retarders; same perms as kraft paper facing) used as the decking. No need to add faced insulation.
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17,000 dryer fires a year, when did you last clean the inside of the dryer near motor or the exhaust ducting?