I will admit that I don't do it consistently (I know, be consistent), but in some cases I will write that I failed to observe a fire resistant/retardant treated sheathing in the attic spanning at least 4' where adjoining dwellings (townhouses) meet. I then go on to recommend that 5/6" drywall be added to achieve the recommended fire rating. I have the code to support it, but I dont want to be the only guy out here writing it. And as I understand it, there could be the chance that the treatment was applied to the exterior side of the sheathing and it would be impossible for me to view the rating in the course of a non invasive home inspection.

I killed a deal the other day with this very same observation and I know I lost that Realtor. I'm okay with that as long as I am not being too anal.

Any thoughts?

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