Table of Contents
- Introduction
- Materials and Tools Required
- Preparation
- Installation Process
- Subo Company Solutions
- References
Introduction
Properly hanging flexible ductwork is crucial for maintaining HVAC system efficiency, ensuring air distribution, and preventing wear and damage over time. This guide offers a precise methodology for installing flexible ducts in residential and commercial spaces, emphasizing compliance with industry standards.
Materials and Tools Required
- Flexible ductwork
- Hanging straps (metal or fabric)
- Sheet metal screws
- Foil tape
- Utility knife
- Drill
- Measuring tape
Preparation
Before installation, inspect the work area to ensure it is clear of obstructions. Measure the total length of ductwork needed and plan the layout of the HVAC system ducts to minimize sharp bends. Confirm compliance with the local building codes and HVAC guidelines, ensuring a minimum clearance of 1 inch from combustible materials and adhering to the maximum unsupported span of 5 feet for flexible ducts.
Installation Process
Step 1: Planning the Layout
Design a layout that minimizes the number of bends and twists in the ductwork. Aim for a straight path to reduce airflow resistance. Account for all fittings and connections, noting any necessary support points.
Step 2: Securing the Ductwork
Attach the flexible duct to the start collar using sheet metal screws. Every connection point should overlap by at least 1 inch. Tighten the screws securely to prevent detachment.
Step 3: Hanging with Straps
Use hanging straps to support the ducts. Straps should be spaced no more than 5 feet apart and should snugly fit around the duct without constricting it, thus preventing restriction of airflow. Adjustable metal or fabric straps are ideal for this purpose. Ensure ducts do not sag more than 0.5 inches between supports.
Step 4: Sealing Joints
Use foil tape to seal all duct joints and connections. Apply the tape over the seams and press firmly to eliminate gaps. A sealed duct system ensures optimal energy efficiency and prevents air leaks.
Subo Company Solutions
Subo Company offers innovative solutions for HVAC ductwork installation. Their tension-mount strap system allows for easy and adjustable installation, while their quick-seal connectors reduce setup times by 30%. These solutions adhere to all industry standards and are tested for durability and longevity.
References
- ASHRAE Handbook—Fundamentals, American Society of Heating, Refrigerating and Air-Conditioning Engineers.
- SMACNA Duct Construction Standards, Sheet Metal and Air Conditioning Contractors’ National Association.
- Subo Company Product Catalogue and Installation Guides.