Look for discolored patches on walls furniture and carpeting.
Checking for mold inside walls.
You smell a definite musty odor in the room but can t see any mold in this case check air ducts for mold as well.
Growth medium that serves as a base for tested samples.
Check for speckled or cottony growth on walls especially near water damaged surfaces.
There has been flooding or other significant water damage in the home.
How do you know if you have mold inside walls.
They aren t intended to detect mold inside walls but they can provide a starting point for diy mold removal.
You may also see furry growth and black stains.
Most mold is unmistakable but sometimes small or largely hidden growths just make a surface look dirty.
The following are some of the most common spots for mold to grow undetected and therefore smart locations to test for mold.
The only way to know for sure if there is mold in walls is to look.
There is a significant amount of wall mold on the outside of your walls.
You should suspect mold in your walls if.
If the spot quickly lightens or keeps coming back after cleaning assume it s mold.
It is recommended that you check in several places since you might miss small amounts of mold if you only look inside the wall in one spot.
A quick test for mold can be done when you dip a swab in diluted bleach 1 part bleach 16 parts water and dab it on the wall.
Look for patches of mold in colors ranging from white to orange and green to brown and black.
To check inside your walls for mold you ll need to carefully cut out six inch squares of drywall remove the cut out squares and use a long handled mirror and flashlight to look inside for mold.