Reply to thread

Message: <blockquote data-quote="david" data-source="post: 2064364" data-attributes="member: 207029"><p>The answer is: The type of condensation that you describe is caused when a solid object that is significantly colder that the surrounding air comes in contact with the warmer air and condenses the air, thus removing the moisture from the surrounding air. I am assuming that your vent stacks are made of cast iron, because PVC would not normally form condensation.  The solution would be to wrap the pipe in a special type of insulation that is designed for pipes. Check with your local home improvement store. They should have the product.</p></blockquote><p></p>