i bought a house in june and the bathroom fan start dripping water a few weeks ago (november). I looked at the inspection report and the picture shows that the vent duct through the roof isn't insulated. Do I need to replace the metal pipe all together or can i just wrap insulation around it?
Another thing is that the pipe isn't long enough to reach to the outside of the roof, so it is venting inside the attic. i am guessing i will have to get a new duct or pipe?