There was never a vapor barrier put in place under the home or gutters along the roof.

For mold remediation (air quality test in livable areas came back acceptable), sump pump/french drain, vapor barrier and some jack post installation, it’s going to cost me between 12k-16k.

Is insulation and vapor barrier necessary?

And due to the vapor barrier, (a huge plastic sheet) all the little (and not so little ) poopies stayed nice moist and fresh!

People take shower some longer than others 365 x 46 x persons the amount of vapor moisture where did they go?

@John Tokarz I've constructed vapor extraction system for my engineering clients but not for my tenants.

Turns out the water that was leaking was all turning to vapor.

Using foam to air seal provides a slight structural benefit and can also be a vapor barrier - if using closed cell foam.

The plan was to remove any Insulation if any was present, spray and apply vapor barrier but I did not go into the crawl to see extend as it was difficult to get in.

We painted the interior, added backsplash in kitchen, laminate floor in BR's, changed some light fixtures, and faucets.Contractor solved the surface water that plagued the foundation- added french drains, graded exterior, replaced the rotted gutter system, and new vapor barrier to crawl space.