Duct Work: What You Should Know

By | 04.12.2003

There may be a time when you find yourself in need of duct work. What exactly is duct work and how do you know when it is time to have the work performed? This article will give an overall discussion on some of the things you should to know about duct work.

Ducts are used in air, heating, and ventilation to deliver and remove air. In order to have acceptable indoor air quality, ensuring your ducts are clean and in good condition is imperative. If your ducts become clogged with dirt, debris, or mold, you may experience simple signs to let you know it is time for replacement or cleaning. These include: Headaches, sinus infections, having to clean more frequently, allergies, little or no airflow coming from your vents, becoming sick more frequently, and a stale or musty order coming from appliances when they are turned on.
There are a variety of materials that can be used in duct work.The most common form, polyurethane,is made of sheet metal and can be installed in one step. It is lightweight and easy to install. Once the initial tracings are made, it is bent and cut to fit the exact shape of the unit. It is then put in place with sealant.

Fiberglass is also available for duct work uses. This material is a bit harder to install, however, it provides a thermal installation that absorbs sound, making for a quieter HVAC unit.

Flex ducting is a flexible piece of plastic over a metal wire coil used to make round duct. Fabric ducts are used for even air distribution and require PVC coating so they stay in place.

Additional components may need to be added as well, which include volume control dampers, take offs, and insulators.

To ensure the best air quality in your home or business, enlist the help of a professional “ductman” who can have your place up to par in no time. You can also find lots of useful resources for the air in your home at the Heating and Air Guide.


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