What is semi rigid duct?

Semi-rigid metal (usually aluminum) duct is flexible and similar to foil ducting but quite a bit more rigid. Like foil duct, semi-rigid is used only for transition ducting and should not be concealed in walls or floors. It is typically installed with clamps.

Can semi rigid aluminum ducts be cut?

Wide rubber band wrapped around the duct at the position you want to cut (a wide band stays in position better than a narrow one). Leave a little extra to allow for smoothing out any irregularities at the end. Permanent marker to mark the line you’ll be cutting along. Hacksaw to start the cut.

Is semi rigid duct safe for range hood?

Semi-rigid duct is more durable than flex duct, but rigid duct is the best for your range hood.

Can you bend semi rigid duct?

A semi-rigid hose is ideal for applications that require flexibility and stability. Our self-supporting hose products can be bent to send airflow in your desired direction without creating sharp bends that restricts airflow and there is no need for additional support.

Is rigid or flexible duct better?

Flexibility. Flex ducts are better for existing trunk-and-branch heating and cooling systems. This is because they’re more versatile and flexible. Metal ducts are more rigid due to the nature of steel, making them ideal to build an entire HVAC system.

Is it OK to use flex pipe for range hood?

Flex duct should never be used for a range hood.

How far can a range hood be vented?

How far can you vent a range hood? Your range hood duct should not exceed 30′ for a straight run, 25′ for a run with one elbow, and 20′ for a run with two elbows. The shorter the duct, the better. If your ductwork is too long, your kitchen air may not reach the outside.

How flexible is semi-rigid duct?

Product Family Description: The semi-rigid duct is flexible yet holds its shape to help improve airflow. Perfect for venting dryers, as an exhaust for bathroom fans, or for venting kitchen range hoods. Aluminum is flexible to allow for ease of installation. 8ft.