Ouch, I was actually replacing a roof today. The moment I got to the attic about 45 feet high and a 45 degree pitch I started shaking. I said to myself f this, I got money to pay somebody else younger than me to do this. Turning 40 is not easy, any broken bones will never heal. Just don't do any hard work from now on, some bosses like us do 3 times more than our best employees.