Installing flexible ducts correctly is essential for ensuring good airflow and comfort in a building. According to code, the ducts should not have more than half an inch of clearance for each foot between the supports. In some cases, the ducts may need additional support and straps, especially in commercial spaces. Sagging caused by inadequate duct support is a common cause of poor airflow and comfort issues. Ideally, the flexible duct should not sink more than 1 inch over a length of 4 feet.
To prevent this, installers should suspend their ducts every 4 to 5 feet.Kinks and sags in the ducts require additional support. Narrow materials such as plumbing straps or wire can cause the duct to get stuck at that point. In serious cases, the cable can cut the duct and cause air to leak into unconditioned areas of the building. When installing flexible ducts, it is important to ensure that they are properly supported. This means that they should be suspended every 4 to 5 feet and should not have more than half an inch of clearance for each foot between supports.
Additionally, any kinks or sags should be supported with narrow materials such as plumbing straps or wire. Doing so will help ensure optimal airflow and comfort in a building. In addition to proper installation, it is important to regularly inspect flexible ducts for signs of wear and tear. If any kinks or sags are found, they should be addressed immediately. Additionally, any leaks should be sealed with mastic or foil tape.
Regular inspections and maintenance will help ensure that flexible ducts are functioning properly.
