Which materials are acceptable for joining single wall vent connectors?

The use of sheet metal screws is acceptable for joining single wall vent connectors because these screws provide a secure and durable connection. They are designed to mechanically fasten metal components, creating a robust joint that can withstand the operational conditions of venting systems, such as temperature fluctuations and vibration.

This method ensures that the vent connectors remain tightly assembled, reducing the risk of leaks or disconnections that could lead to dangerous situations, such as carbon monoxide emissions. Sheet metal screws are also specifically recommended in industry standards for their strength and reliability in HVAC applications.

In contrast, duct tape and silicone or adhesive do not create a permanent or mechanically secure connection suitable for venting applications, where system integrity is paramount. Pop rivets, while useful in certain applications, may not provide the same level of mechanical strength or ease of disassembly as sheet metal screws, which is often required during maintenance or inspection.