How Long Can You Run Flexible Duct?

How Long Can You Run Flexible Duct?

How Long Can You Run Flexible Duct?

To prevent mould, fresh air should always be introduced into your dwelling daily, as it helps to regulate temperature and reduce condensation. Introducing fresh air can be as simple as having a ventilation routine, or installing extractors or PIV systems.

In this blog, we will answer the question ‘How long can you run flexible duct?’

Knowing the length that flexible ducting can run is vital in learning how you can apply it to the space in which it is required.

I-Sells is here to provide the answers you need whilst also supplying you with all the information you need to combat mould and have a well-ventilated home.

The basics of ducting

The ducting system is a series of interconnected hollow tubes dedicated to the movement of air, ducting pipes can come in different sizes and as previously mentioned, in different shapes, each of which has its benefit.

Ducting pipes can be as long or as short as required by the space it is occupying. Additionally, ducting can be created from different materials, as we will highlight below.

Ducting is used to facilitate the process of ventilation, ducting systems may vary, but generally are made from plastic or metal & made into the piping which intakes air from the room it is in & expels it outside.

The main purpose of ventilation is to introduce outdoor air into a dwelling, building or room being evenly distributed. Its general purpose is to allow “healthy” air for breathing & diluting pollutants that may be present in the dwelling, building or area.

No ducting means more mould

Mould reproduces from tiny spores. The spores float through the air and deposit on the surfaces. Under adequate temperature, moisture, and nutrient conditions, the spores can form new mould colonies.

condensation is not the only cause of mould, it can occur from leaks in the structure of a building too. Ducting and ventilation can help prevent an environment necessary for mould to develop, along with a ventilation routine.

Mould can severely affect your immune and respiratory system, as the spores are easily breathable and not obvious to see through the human eye.

If you have found mould in your home, you need to assess if this is your landlord’s responsibility (for example it could be from a leaking roof that needs repairing). Or if the dampness is caused by improper ventilation. To assess your options, click here.

Pros and cons of flexible ducting

Pros and cons of flexible ducting

Flexible ducting can be made from PVC, silicone, rubber, aluminium and PU polyurethane. As a result, this ducting is easier to manipulate and therefore can be used in cabinets, a variety of layouts and other small spaces. (this is also thanks to its accordion-styled design.)

Advantages

  • It is flexible by nature which by default makes it easier to install & manipulate post-installation if needs be.
  • Can be installed in tight or confined spaces.
  • Option for transparent ducting to be able to see potential blockages.
  • Can be used as a temporary ducting system

Disadvantages

  • Due to the flexible nature of this ducting, there is a higher likelihood of punctures, subjective to placement.
  • Regular maintenance checks should be carried out to guarantee efficiency.
  • Mostly suitable for internal mounting
  • Higher chance of noise than rigid ducting (especially if it is not fully extended)

How long can you run flexible duct?

The flexible ducting we provide comes in either aluminium or plastic, in addition to sizes ranging from 3M, 6M and 10M. Depending on the ducting you choose, you can also decide between 50-500mm diameter.

Setting up flexible ducting

One important factor you should consider before and after you have purchased certain flex ducting is that it should be fully extended before installation, having it fully extended limits the amount of dust and allergens that would be caught in the ridges of the unextended areas, which will build up over time.

Additionally, fully extending the ducting before the application will ensure it will reach the maximum length it is able to. If you are new to installing ducting, we recommend speaking to your nearest HVAC expert to avoid any mistakes and possible refits.

Is flexible ducting better in plastic or metal?

Is flexible ducting better in plastic or metal?

Whether it’s rigid or flex ducting, ducting made from plastic and metal both have factors that make them great options to consider. Metal is generally more resistant to certain chemicals and higher temperatures, making it applicable to industrial settings.

Plastic ducting is more applicable towards home or accommodation usage, due to its cheap yet efficient properties.

For example, metal ducting can be more susceptible to rust in a bathroom extractor fan, whereas plastic ducting won’t face this issue.

The flexible ducting we offer is available in plastic and metal, we would recommend getting in contact with us if you are unsure of which option you should choose.

Can a flexible duct grow mould?

The naturally hot and dry climate within a duct naturally makes it difficult for mould to thrive. But if a duct becomes unsealed, or there is a dramatic change in the duct’s environment that causes humidity, mould can grow within it.

To prevent this possibility, you must make sure your ducting is sealed securely and free from any cracks or holes that compromise its efficiency. You must also make sure the area the ducts are installed is free from free-flowing water or leaks.

What happens to a duct if it grows mould?

If ducting has any mould growing within it, it presents a dangerous health hazard as the spores can spread amongst the whole ventilation system and the dwelling it operates in. As a result, you may have to completely replace the venting system/ ductwork depending on the severity.

Here are some steps you can take to prevent mould on your ductwork:

  • Before installing the ducting, make sure the area doesn’t have any leaks or is next to anything that can generate a lot of heat, such as a heating pipe.
  • Remove any mould in the room where the ducting will be placed.
  • Insulate the ducting
  • Track the humidity of the room with a hygrometer.

Regardless of which ducting option you choose, these steps should be implemented as unfortunately, no ducting or surface is free from the effects of mould. So it is of utmost importance for you to consider mould prevention in your ducts. It should not be ignored.

When should I get new ducting?

Here are some key factors that would determine your ductwork being replaced without the intervention of an HVAC technician to check themselves.

  • A reduced input/output (this can indicate a large amount of dust inside the ducting)
  • Broken areas that allow air to escape, whether this is on the ducting pipe or the connecting joints
  • Condensation on the ductwork
  • If the ducting hasn’t been checked or worked on in years
  • Mould in areas neighbouring the ducting (could be an indication to mould being within the ductwork.)

Purchase Flexible ducting today

We at I-Sells endeavour to make sure our customers have all the information they need before choosing to invest in our mould solutions. Be sure to visit our blog page to gain knowledge on the wide array of factors and issues surrounding ventilation, mould, condensation, and much more.

We hope to have answered the question ‘How long can you run flexible duct?’

We understand you may have more questions, Do not hesitate to contact us for more information with regard to whatever you need our help with. If you’d like to send us an email, click here. For other contact options, see below:

Call us on 020 8463 9696

Visit us at our showroom:

*OPENING TIMES*

Monday – Friday: 8:00 am to 5:30 pm

Saturday: 9:00 am to 12:00 pm

Sunday: Closed

15 St John’s Parade

Sidcup, Kent

DA14 6ES

United Kingdom

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