Do moisture meters work on concrete?

[@zelozejn]

I have an Extech MO55, which has an option for wood and building materials, and the manual also specifically mentions concrete under building materials. Of course you then have to select correct material. ;)

[@Direct_Home_Inspections]

I don't get these inspectors spreading misinformation. Mine don't peg out at 50%, and read 8-12% on most concrete unless it's wet. I typically have staining or other data to back it up.

[@Direct_Home_Inspections]

I disagree. I use them on foundation walls and will read 8-12% on dry areas, and over 14% on damp areas. There is typically other supporting information to back up the numbers. Such as staining or efflorescence. I use them every day and to claim they peg out is simply false information

[@sumeriansumer1622]

Which moisture meter model number do you use?

[@hayleyarlt1464]

Thank you for sharing this! I just had a similar result on my moisture meter under the masonry setting since I didn’t know which would be the best fit.

[@lindsey123789]

Hey, is there any device that a home inspector can use to test concrete walls or floors? Or is there anyway to contact you directly?? Thank you!

[@tabman7934]

Will this work on cement walls? A video I saw showed 'Masonry' mode. Is that same as cement wall?

[@bethanyanderson1745]

I just now read arguments between *commentors about moisture being trapped between spray foam and roof decking. Of course, as is common on the Internet, everyone was an expert. Basically, the issue revolved around spray foam hiding leaky decking, obsorbing water and expanding the wet areas, then holding the water in place thus causing wood rot of trusses/decking, and finally shorting the life of asphalt shingles due to no ventilation or baffling directly under decking. Oh, and spray foam's toxic off-gassing lasting for years causing AC coils to "turn into powder." Along with speculation abt what these gasses are doing to our health. Lastly, apparently, spray foam does a Vulcan mind meld and becomes one with wood. So the cost to remove the rotted decking with the attached wet and now heavy spray foam is a horror similar to 1950s The Blob horror movies. Will your moisture meter detect all the above? * on another website