Lead top stacks are designed to create a durable, weather-tight seal where furnace or vent pipes pass through a sloped roof. Each lead top stack we produce is custom fabricated to your selected pipe diameter and stack height using quality sheet metal with a formed lead top that allows the upper pipe section to slip into the lower stack for a secure connection. The lead top helps conform around the pipe and provides added protection against water intrusion while allowing installers to trim and fit the flashing as needed during installation.
