Sprinkler Warranty Call Warranty call to locate low points and log deficiency to remove from attic. Suggested: Building C and building B have inspectors test valves that are mounted high in the rafters with shut off valves roughly 18 feet off the floor of the attic the attic has newly blown in insulation which makes this extremely difficult areas to work in if you are going to rework the inspectors test valves it will take the moving of the 1 inch valves the pipe dropping down and then running out of the building with a reduced office on the outside.