Some people just have big hands. Looks real to me, it's obviously just a staged shot for promotion. Get a crew to build part of a fake attic (don't need a whole attic for this), lay some insulation, have the talent (the guy in the photo) hold the insulation and look nice for photos. He leaves, they break it down and move on to the next project

Wait until you find out about food commercials

The hands don’t seem off to me, especially if the model has done a lot of hand-on labor. The thing that sticks out to me as an indicator of this being not AI generated is the markings on the strand board to the right of the model’s belt; I don’t think an AI would take into consideration the product info marked onto raw material, let alone be able to place three squares of that info in line. If we could find actual raw strand board with those specific product markings, especially one sold by Home Depot, that would suggest it to be an actual photograph. Identifying the model in the photo and finding photos of him outside of Home Depot’s promo shots would also indicate it’s a photo. In either case of it being a photo or AI-gen, the marketing team still could have done some photoshopping as they see fit.

fiberglass isn't that bad to touch without gloves. I mean you should wear gloves, but agressive washing will make the itching go away.

Yeah certainly AI generated

I'm suspecting it's all Ai generated.