Perhaps I already know an answer, but I am wondering if it is really possible to get rid of the damage from smokers living in a house. I understand nicotine creates a resin that can be somewhat broken down by applying bleach and/or TSP to walls and all other surfaces, followed by priming with a shellac-based primer. That may provide some immediate results. However, I feel it is absolutely necessary to replace the HVAC system’s ductwork, and if not possible to sterilize, the furnace/air handler unit. Let’s say I can do that, and proceed with getting rid of the resins. My question is, does the “stack affect” whereby air is traveling through a house from the lowest level (foundation vents in a crawl and/or basement areas) through wall cavities and electrical outlet openings, plumbing chases, etc. (since base plates and sill plates and top plates are not air tight), especially in baloon framing, and can cause this smoker junk to travel through the wall, embed into the back side of the drywall or plaster, and make a home in the insulation in an exterior wall, etc. I can imagine doing all this cleanup work, replacing the HVAC, and then possibly having an issue from the stack affect and the remaining chemical contamination that I cannot access. Is this a valid concern?
Anyone have experience with this concern? Thanks!