Types Of Residential Air Ducts

Uninsulated rectangular ducts also known as sheet metal ducts are the most popular type.

Types of residential air ducts.

Item 1790033 model 1790033. They have a non porous surface that s easily cleaned and the smooth metal makes an inhospitable environment for biological contaminants. The most common type of ridged air duct is constructed of galvanized steel or aluminum. Sheet metal ducts.

Fiberglass lined air ducts. Since the early 1970 s a significant increase in the use of flexible duct which generally is internally lined with plastic or some other type of material has occurred. Sheet metal round or rectangular ducts made of sheet galvanized steel or aluminum are the most durable and costly available. Fiberglass ducts are a form of sheet metal ducts lined either on the interior exterior or both with fiberglass.

However rigid ducts cannot be easily used in tricky spaces. Aluminum in particular is relatively light and easy to install but needs to be thick enough to avoid getting crushed if someone walks on it. Some sheet metal air ducts air ducts are lined with an external or internal fiberglass duct. Sheet metal air ducts.

If you do choose to use these you can make them more effective. Sheet metal ducts. They may be round rectangular or in the form of a spiral oval. Sheet metal ducts fiberglass lined ducts and fiberboard ducts.

However because of this sealed lining these ducts can be very difficult to clean. The most common type of rigid air duct is constructed of galvanized steel or aluminum. To protect the air the interiors of these ducts are sealed so fiberglass cannot make its way into the flowing air stream. They are also prone to condensation as well as air leakage.

Four common types of ducts are flexible ducts metal ducts glass wool duct boards and plastic ducts. While they are inexpensive to install they are not very effective. These are the kinds of ducts you ve seen in films usually with an action hero crawling through them. They allow excess noise in your home.

There are three main types of rigid ductwork. These are sheet metal ducts like those described above that have internal or external fiberglass lining. Sheet metal ducts are usually made of either galvanized steel or aluminum. Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct.