Please check this new roof

Hi, experts,

I noticed that my contractors cut the plywood along the intersection line on the top of my roof (pls see pic). I am afraid that may result in less support to the roof and bigger noise to the house. Is this a normal practice? or should I worry about it?
thanks- sam

Pretty sure you are referring to them cutting out a ridge vent. That is normal for roofs to have.


Got you. Thanks a lot.
Now I felt much better, although it is still not pretty if I go to my attic.

Why do you care about cosmetics in your attic? How much time do you spend up there?