I have a 1921 home. Guaranteed that the walls have lead paint somewhere beneath, right? All surfaces have been painted at least once if not 2 or 3 times since 2001. The paint is all in good condition - no chipping. To my understanding, this is good encapsulation.
If we had someone do a lead survey with the xray gun, would these surfaces test positive for stuff beneath? Or does the gun ONLY test the surface layer?
I'm curious to know for sure that my surfaces are safe, but due to mandatory reporting/remediation, I don't want to risk testing positive from a sensitive instrument that picks up a signal from a very low risk and covered up surface.