The monitoring of temperature, humidity, and noise is great. 

-Bathrooms: Semi-gloss everywhere (mainly for homeowners/business owners) to help repel water in our SUPER humid climate.Lots of great advice here!

Everything Ken said plus plaster walls, no insulation, higher electric bills, walls sweating when its humid in florida and the resident leaves front door open, damp smelly houses, Pealing paint, wood rot, old windows, crawl space under the home, bdrm and closet doors that don't close properly, electric locks that the old front door doesn't like as the door is not aligned correctly, Cyrstal knobs that fall off, old thermostats with 2 lines but my new thermostat needs 3 lines, critters in the fireplace....

Hi Tyler,I don't know what's bloody worse lolLived in Chicago for 2 years and now in Dallas.The Chicago windy winters or the Dallas humidity and mosquitos lolI'm still contemplating haha 

I would shy away using this from bathrooms, in particular small square footage / high potential humidity bathrooms.  

Have had it happen in personal houses before, it was usually due to humidity in cities with high, high humidity. 

Electricity if you're doing climate control, temperature control, humidity control, you can get. 

Mold every downstairs and so humid started to move upstairs.

I assume the humidity is coming from heating water and it doesn’t matter if that heat is gas or electric stove.

I have a bias for sure to the west coast compared to FLA weather totally flat terrain humidity and bugs.