FAQ
Yes, however the amount you can bend it is restricted to maintain a smooth radius or curve
It depends on where it is located, the regulations state that all duct if installed in unheated areas IE a loft, must be insulated, the insulation value must be 0.04w/mk or lower or by using an insulated wrap the semi rigid duct can have an insulation layer around it of 25mm .
If you install semi rigid duct elsewhere outside of a cold area it does not require insulating.
If you install semi rigid duct elsewhere outside of a cold area it does not require insulating.
Good quality ducting like our Air Excellence does not need any other sealants, any ducting with ATC 2 rating is airtight already.
Back in the early 2000`s it was common to use tape to join ducts along with a non-hardening sealant , this is no longer the favoured option, ducting manufacturers like Ubbink manufacture ducting connections that will provide an airtight seal without using tape or sealant.
Back in the early 2000`s it was common to use tape to join ducts along with a non-hardening sealant , this is no longer the favoured option, ducting manufacturers like Ubbink manufacture ducting connections that will provide an airtight seal without using tape or sealant.
The size of the ducting is proportionate to the amount of air required for example, if the house/property demands a high volume of air being supplied and extracted then this may require larger ducting or even double duct runs., all of this is calculated at the design stage .
In a nutshell , the design determines the air volumes, it the air volumes are high you need larger ducting , if the air volumes are low you can use smaller ducting.
In a nutshell , the design determines the air volumes, it the air volumes are high you need larger ducting , if the air volumes are low you can use smaller ducting.
Semi rigid ducting should be supported every 500 mm , the ducting should not sag as condensation can form in any dips or traoughs and cause problems.
Yes, however the ability to bend it too far is restricted, air does not like to go around corners so limiting the amount of flexibility is key .
No, flexible duct should not be used as it allows the installer to create tight bends in the ductwork, and therefore will create reduced airflow and back pressure.
See below image of our click ring system is Type 2 ATC rated, “Air Tightness Classification “ the picture showing our full system is a full semi rigid system with connections.
