Two days ago had a new roof installed on our interior unit townhouse. Unfortunately, the contractors installed the counter flashing against my neighbors adjoining brick with a straight cut (on the diagonal following the roofline) instead of stagger-stepping the flashing with the brick mortar. I've commented that it looks horrible, the metal flashing is too high and appears to be wavy, the caulking is highly visible from ground level and looks amateurish. All the other townhouses in the cluster have staggered flashing, with the exception of those where the offset of the adjoining house allows it to be placed under the rake board trim. I'm now being told by the contractor that the straight flashing is superior and less prone to leaking. To me that sounds like a lame excuse to avoid fixing a problem, especially when it appears they wanted to do the minimum necessary to complete the job. Again, all the other townhouses have stagger-stepped flashing, and the flashing that was removed from the previous roof was staggered and sealed against the brick mortar. Any thoughts on how best to address this?