I Inspected a home last week that touted a new roof, as many do. Good selling point ,but make sure it was installed properly. This is what I found below that new roof.
Thats right, they moved the vent pipe off of the water heater. The unit was in a closet near the bedroom in a manufactured home. To add to the danger and list of defects, there was no CO detector in the house as well!(mandated to be within 15 ft of every bedroom in Colorado). It is not a bad idea to work inspected after the contractors are done to make sure things like this don't get overlooked. Sometimes it could litterally save your life.