EPPM - If he is like dp, most of his work is on new build and refurbs. when there are lots of trades onsite, and you see what is being done, get to know the other workers, help out and over the years learn a bit about everthing. There is also a fair bit of overlap.
He does all the joists and things for new roofs, so is used to the height work and doing the calculations and angles, so putting on tiles and felt or whatever is just the next stage.
I just wish the man could get his act togethre when it comes to doing the stuff at home!!
DS went to his first soft play party today. I don't think he even knew which child was the birthday boy tbh, but did enjoy the free play and food