Well, someone has done something looking like a repair to the porch roof.
The main roof looks like it can take a little longer until it needs replacement, however ,Only your professional inspector will be able to give you a better grasp of the situation. You need a good www.ashi.com inspector. It is easy to Find one who has been around a while in your area.
A little advice, try not to get overwhelmed on your inspection. Keep in mind you are looking at everything wrong with the house at once and this can get frustrating. Bring a camera, and notepad and take one picture of each issue. This will help you later to make your decisions later. And keep in mind that everything can be fixed in time, not all at once.
And since I've only been on thousands of inspections take this with a grain of salt.
Good luck on your new home, stop in with those problems when you get the place.
We'll be here.