I had a new roof replaced recently and my whole house would shake when they would throw the shingle bundles down on my roof. I went to the attic the next day and noticed something I hadn't previously. 2 of my roof rafters had a split in the wood. The split is length wise extends the entire length of the beam.
I showed this to my roofer and he laughed and said it was "checking". He tells me there is no way that his guys could have done this.
So a couple questions: 1.) Is this really checking or could the roofer have caused the damage? 2.) How big of a deal is this? Do I need to get it fixed? 3.) How do I fix it? Or more likely, who do I call? A general contractor? Another roofer?