JDP

Just did a 40 year old home, damp crawlspace- flat rear yard/no gutters/no vapor barrier on dirt/plumbing leaks. Modest fungus growth on insulation and black spots/deposits on some framing. What exactly are these spots. A mold remediator told me once they were insect/spider droppings, and I accepted it, but didn't see any spider infestation in this house. Would like to know for sure. House also had Owens Corning R-7, 2.25" fiberglass insulation, installed in a double layer under ground floor- much of it installed upside down according to large markings stating "Install this side towards living space". This insulation has black coated kraft paper on both sides of the batt. Why the 2 sided paper? What do you think any negative effect of the two layers and some installed upside down is? No apparent negative effects seen Click to Enlarge 38.97 KB Click to Enlarge 63.95 KB .

Everybody is always recommending the Hansen book Electrical Inspections for Existing Dwellings, but when I try to find it I am told it is out of print. Anyone know where to get it?