root decay destabilize house foundation

I need help identifying which tree this root belongs to! My concrete garage floor was cracked and lifted about 1.5" above the driveway causing a tripping hazard and prevented my garage from closing flush which allowed water to travel in during the rain. I was speculating what it was for months...

We have a big white oak tree next to my house. The tree is about 7-8 feet away from my house. It's a healthy tree with a trunk of approximately 4 feet in diameter and is about 200-250 years old. It's super tall, probably 40-50 feet tall. The problem is its limb is directly over my kids'...