Causes of Duct Bursts and Noisy Air Ducts We all know that air ducts are very important to any HVAC systems, so why do they fail or make noise. The following list some important parameters for consideration:
Causes of Duct Bursts
Some Common Causes of Duct BlowsPressure Imbalances: When there is a pressure variance in between the supply as well as return air ducts, it will cause an increase or reduce airflow to escape from some components. Pressure imbalances can stress the duct materials, and this sometimes causes ruptures.
Temperature Variations: The materials for duct might be weaker as they sometimes expand or contract with temperature changes.ductwork (ad) Ducts grow as they expand from heat and shrink when cooled down leading to multiple cracks or possible break downs.
Installation Problems: Ducts that are not installed properly can have weak points which might burst more easily. If ductwork is properly sized and sealed, such damage will not occur.
Aging Materials – As the ducts age, materials can break down and make them more prone to bursting due to pressure or temperature changes.
Physical Impacts: Damage from construction or even pests can weaken the ducts and cause them to burst.
What Causes Popping And Banging Sounds
This causes the ducts to pop, as they are adjusting for such a change in pressure. A common example is when you hear HVAC systems turning on or off.
Thermal Expansion – As ducts heat and cool, they can expand and contract just like bursting causing them to bang against other structures.
5) Debris or Other Obstructions – Over time, debris can collect in your ductwork and restrict airflow so that air is forced to move around obstructions which causes noises.
Loose Duct Connections: If the connections between duct sections are loose, they can rattle or bang when in use telling you its time for some maintenance.
Animal Intrusion: If small animals or pests are nesting within the ductwork, they can also cause noise as they run around which people sometimes mistake for mechanical problems.
Knowing these things can help homeowners properly care for them and prevent problems from occurring or before heating systems turn into major issues.
