I don’t want to punk out any individual people, but I can’t believe some of you answer when you have no idea what you’re talking about. Foaming a roof is completely different than any other type insulated home. You do not ventilate the attic at that point please learn some more before you try to give information that could harm this guy or his home.

Please stop listening to these ignorant people that don’t know anything about spray foaming a roof almost all the information people are giving you is incorrect. Contact an experienced foam insulator in your area to come out and give you his opinion. I’m pretty sure I know the answers but I’m not going to speculate without seeing the entire house you need to make sure you don’t make any mistakes.

You have absolutely no idea what you’re talking about

Yes, I agree that’s what I meant. I wouldn’t say anything until it comes up in the inspection.

Don’t knock the price of the house give a repair allowance at closing.

Put any shallow metal Box then drive some screws through it into the wood.