I do have an alarm installed on it, my boyfriend and I tested it by exposing it to water and it is plenty loud and lasts for 40 hours with a constant beep until you remove it from the moisture.

Let it sit for 4-5 days to check and see if you're getting moisture through the floor (there will be water under the plastic you can see).  

Install automatic moisture sensing fans or a switch that turns them on when moisture is present.  

Since home inspections/termite & moisture reports are typically for informational purposes only.

In an area of high moisture and humidity like that, the foam will hold the water.

I'll cite the highly dramatic strip search, with female officers present, of the woman who cops "mistook" as an aggressor (in other words, she was aggressive to the responding officers which makes her an aggressor) where the documentary maker showed the husband saying, "She felt penetration" and referring to it as a "rape".

It is a bit thicker, is made of denim, and serves as a cushion, sound and moisture barrier.

James—about a quarter of those look like bad contractor work and resulting water infiltration , and another quarter high moisture from not having a bath fan on a humidistat.  

Do you have a moisture issue?

No moisture in cavity.