RH Numbers Rising

[Ernesto]

I never said I do not use them, just not all the time. If site conditions are pretty much perfect, grading, testing and the like a water proof alkaline resistant adhesive can easily perform for the life of a flooring on concrete. You have to realize though I am residential and not working over acres of concrete placed in old swamp land. And I am pretty well aware of concrete issues in arid zones like my own. Thats why I have never had a problem, I know how to read concrete out here. I appreciate the warning but I don't approve of blanket statements like some here make.

One has to realize that the current condition of the concrete and ambient readings when your going to install is most important.

Course I always advise clients that a vapor retarder makes good sense and is cheap insurance. One adhesive I really like is a CX-1000 for hardwood.

Just saying there are installed products on slabs out here every day that perform well and the slab is poured directly on the dirt. Then theres the one that fail.