It is quite important to select the right material for Sheet Metal Ducting to keep it active for a long time. It will affect several factors of your HVAC system, like its durability, installation, energy saving and functioning. Metal ducting creates a ductwork for your system to manage the flow of conditioned air. Hence, it has to be done professionally with the top grade of maintenance.
The advantages of the most popular sheet metal alternatives will be discussed here, along with important considerations.
Key Factors for Material Selection
Environment
Material selection regarding Sheet Metal Ducting highly depends on the surroundings or atmosphere of the location. In humid coastal areas, corrosion-resistant materials are used for ducting processes. You can use stainless steel or aluminium. In less challenging situations, galvanised steel can be a good, low-cost option.
Budget
Galvanised steel is a popular and cost-effective choice for both commercial and residential construction. Although they are more costly initially, aluminium and stainless steel are superior materials for harsh conditions. Because they are resistant to rust and chemicals, these materials are a good investment.
Durability and Strength
The predicted air pressure and velocity determine how strong the duct material is. To avoid vibration and damage, thicker gauges are frequently needed for larger ducts or higher pressures. Stainless steel is stronger and more rigid, while aluminium is lighter and provides sufficient durability.
Installation
Workability and weight are important during installation. Aluminium is easier to make and install in confined or complicated places since it is lightweight and manageable. Strong but heavier, stainless steel is easily welded for a tight fit. The cost and usefulness of galvanised steel are balanced.
Thermal and Acoustic Performance
Thermal and acoustic insulation are not provided by sheet metal ducting alone. More insulation is frequently needed to cut down on noise and heat loss. Strong and easy to maintain, rigid sheet metal is good, but bendable ducting and fibreglass are better. Insulated sheet metal ducts are best for saving energy and providing comfort.
Common Sheet Metal Ducting Materials
Galvanized Steel
The most prevalent ducting material is galvanised mild steel. Zinc coating gives it modest corrosion resistance and makes it sufficiently durable for most uses. Smooth surfaces improve ventilation and decrease mold and fungus. A drawback is white corrosion from prolonged moisture exposure.
Aluminum
Aluminium is lightweight and corrosion-resistant, which makes it better to use for the process of Sheet Metal Ducting. Its features make it suitable for the humid climate. It is simple to handle aluminium sheet in ducting, where it can be easily installed by bending or cutting. But it is not as strong as stainless steel. Oxidation of aluminium affects the look but keeps the performance up.
Stainless Steel
Stainless steel is strong and corrosion, moisture, and chemical-resistant. It works best in demanding situations, including labs, food processing factories, pharmaceutical facilities, and pools. It might be the most expensive, but it lasts longer and requires fewer replacements.
Conclusion
Sheet Metal Ducting is not a solution that works for every situation. Stainless steel is widely applied in industrial regions for the purposes of the ducting process. The regions near the coast prefer aluminium or galvanised steel. All these appropriate materials allow the situation to go with an individual’s budget and environment.
A custom ducting project is best started with professional advice to ensure optimal efficiency and durability. From initial concept to final installation, King Fabrication takes care of all your mechanical and sheet metal needs. Our expertise will ensure that your ducting is built for years of use.
