I just bought my first house. (FYI)
Its a single level ranch with a crawl space.
The crawl space has some type of clay.
No signs of mold. The crawl space has two outside wall vents.
The A/C drains in to the clay so I plan to install a condensation pump.
There is a plastic vapor barrier down there but it has many holes and covers about 60-70% of the soil/clay. (the crawl space is about 26'x41')
I want to install a new vapor barrier.
Here is the question, Can I install the NEW vapor barrier OVER the OLD one?
My thinking is that moisture will get trapped in between the layers THEN cause mold.
The photo shows the condition.