I often ask them to open the attic hatch the night before or worst case that morning. If in the garage I ask them to open that as well in the morning. This BESIDES making me more comfortable also keeps the camera equip from fogging. No one ever has said no but some have no way to do it. If asked why I simply tell them the above reasons.
Been doing it for years and they all seem to get it. It is nice to NOT have my glasses fog up when I enter a hatch. Why suffer needlessly? If you were going into your own attic would you not air it out first?
I had a call a couple years ago from a realtor… “how much do you charge for a wind mit?” I said $150, she gasped and said “my guy charges $75, that’s way too much” I didn’t say it but I was thinking, so why are you calling me, looking for a $49 dollar inspection?? It just made no sense to me to loose a half a day on a $75 to $150 inspection when I could be doing a full inspection.