Flex Duct Vs Metal Duct

Rigid sheet metal and flexible ductwork.

Flex duct vs metal duct.

The inner liner ribs restrict airflow more than sheet metal ductwork but not significantly. Made from sheet metal ducts with internal and external fiberglass lining. To prevent problems use saddles or straps to support at regular intervals 4c 4d follow the manufacturer s instructions but in case they get lost here is a list of best practices for. Semi rigid metal usually aluminum duct is flexible and similar to foil ducting but quite a bit more rigid.

See how matt and his crew use both rigid metal and flex for great air distribution in the homes they build. Matt risinger principle of risinger homes in austin tx is surprised by how few builders use rigid metal ducting anymore. 408 422 2987. 09 05 2007 10 58 am 10.

If your ductwork is properly sized it will be better than flex. Sheet metal ducts vs. In a hot climate a well installed hvac system is a must for a new home. There are two basic types of ductwork to keep in mind when deciding upon your new system.

This is because they re more versatile and flexible. But it needs to be sealed and insulated to today s standards. Each has its advantages. Flexible ducts are also the worst type of ductwork for airflow.

Flex ducts are better for existing trunk and branch heating and cooling systems. It is typically installed with clamps. One of the major advantages of sheet metal ductwork is its staying power. Sometimes the best route for a flexible duct run is up and over an obstruction.

One very important aspect of duct design to consider is the differences between flexible hvac ductwork and rigid duct insulation. But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b. In comparison to metal duct flex duct is easier and faster to install. View profile view forum posts visit homepage view forum threads.

Flexible ducts are good for air quality because you are not breathing in fiberglass insulation lined ductwork like the fiber air ducts and they are mold and rust resistant unlike galvanized.