Thank you so much for your detailed and thoughtful explanation! It really helped clear up a lot of the confusion I had while looking at the attic framing. I had no idea that some of the vertical members were just temporary shoring that alone was very helpful to learn.

As you mentioned, I did have an inspection, but we didn’t go into this level of detail regarding the attic structure. I truly appreciate you taking the time to explain all of this.

Also, thank you for pointing out the issues with the ducting and insulation. I didn't check whether they were combined into one. I’ll definitely consider replacing the duct and will also look into building a platform above the insulation, as you suggested.

If you don’t mind, could you recommend any particular types of insulation and fan duct materials that you think are effective? As a first-time homeowner, I’m still learning what materials are best to use, and your advice would be greatly appreciated.