There is water damage on a piece of vertical trim which adjoins two sides of my addition's walls. One guy said it was my builder's fault and that there appears to be too little drip pan, flashing, etc. I asked how could he see the flashing and he said he would have to remove the siding to see it. I called the builder and he said the guy was trying to rip me off but didn't really respond to "flashing" message. The builder said he would fix it but I want to make sure he understands that I don't want water in my home behind the walls. In other words, I doubt he will pull off the siding and now I wonder if the other guy was not telling me the truth. I will upload more pics.