Change Sheet Metal Duct To Flex

Flexible aluminum ducting is slightly more expensive and less prone to tearing.

Change sheet metal duct to flex.

If your budget allows you may want to consider resealing your duct work with a mastic product. The sample from above calculates out to 7 inch for flex duct size. The flex duct size may be different than the hard duct that runs to that room. It collects dust and is almost impossible to clean.

Online residential ductulator. In comparison to metal duct flex duct is easier and faster to install. Pull the duct from the boots and set it aside to either be thrown away or recycled. Metal ducts are more rigid due to the nature of steel making them ideal to build an entire hvac system.

You may need to buy a sheet metal fitting to properly connect the correct size of flex duct to the hard duct. Flex ducts are better for existing trunk and branch heating and cooling systems. Bob s not a fan of flexible heating ductwork. Long poorly supported runs of flex duct sag stress and separate rigid ducting systems often called hard pipe are prone to their own brand of installer pitfalls particularly extra duct length if cutting off is awkward or just too time consuming unnecessary dead end extents are sometimes capped off and left.

More than likely. You mentioned that you were considering re insulating your current metal duct work. Flexible duct needs to be larger than pipes to allow the same amount of airflow. There s no question that flexible duct is easier to install than metal ductwork but consider this.

Flexible duct can degrade over time. Most often flex duct is used to reduce cost or in places where metal duct work will not fit. Flexible duct connector designed to isolate equipment noise and vibration from the ductwork proflex flexible duct connector consists of a fabric which is secured to sheet metal on both sides. This is a great decision.

Sheet metal the strongest material costs more than non metallic or flexible aluminum ducting with additional labor costs for multiple turns. Cost of installation supplies. Typically the connector is inserted between the equipment and the ductwork. 1 10 5 25 per foot insulated flexible duct 4 to 16 diameters used as branches or in radial duct attic systems 2 30 13 00 per foot round and oval sheet metal duct 3 to 8 diameters typically used for trunks in small homes and.

This is because they re more versatile and flexible. Ryan shanahan i ve been told to avoid using metal screws with flex duct because the flex can tear easily once you create a hole. Unscrew any sheet metal screws connecting metal duct to a boot or another section of duct.