Ductwork is used in both commercial and residential premises as a way to convey, or force, air through heating, ventilation and air conditioning (HVAC) systems. But there are different types available, some more suited to certain systems than others, particularly when they’re used in commercial premises.
Two of the most common types that are used are rectangular and spiral ductwork, but what are the differences, what are they used for and why is choosing the right type important?
Why you need HVAC systems in the workplace
There are strict guidelines about managing the temperature in the workplace, it shouldn’t be too hot or too cold. If you’re unsure about your responsibility as an employer, the Health and Safety Executive provides business owners and managers with some guidelines. HVAC systems allow you to control the temperature within your premises in line with these government guidelines. This ensures that the workplace is a comfortable and safe environment for your employees.
Rectangular v spiral ductwork
One of the main differences between rectangular and spiral duct is the volume of material used. Rectangular ductwork often has over thirty percent more sheet metal in it than its spiral counterpart, although both can be made from fibreglass.
Rectangular ductwork, while easier to transport as the pieces can be shipped as separate parts nested together, is not always as efficient as spiral ductwork. This loss of efficiency is caused by leaks which, in the main, are due to the long joints which secure the pieces together.
If you’re looking for either type of ductwork for your premises then visit the Dustspares site to see the range they stock.
If your premises are limited for height space, rectangular duct is a better option for you as it can be adapted to suit most building requirements. But when it comes to noise reduction, the spiral option wins hands down as its shape reduces the effects of drum vibration.
The cylindrical nature of spiral duct makes the job of insulating it much more straightforward. However, as it can only be insulated on the outside it can be less efficient in terms of heating your premises than the rectangular version.
So, when you’re choosing ductwork for your premises you need to consider the space you have available and the costs of transportation versus the system’s efficiency in the longer term.