Fabric Air Ducts

Soper’s Fabric Air Ducts are a versatile ducting system designed for efficient air distribution and easy installation. Custom-designed to meet your specific application, Sop-Air Ducts are an economical alternative to traditional sheet metal ducting and also provide quieter air delivery than sheet metal air ducts.


  • Air make-up
  • Air distribution
  • Temperature and humidity control
  • Ventilation systems
  • Draft reduction


  • Lower costs compared to sheet metal ducting
  • Easily installed and suspended
  • Economical to replace
  • Reduce energy usage and costs
  • Improve employee comfort
  • Quieter air delivery compared to sheet metal air ducts


  • Custom sizes and design
  • Manufactured of white 5.2 oz Woven Polyethylene
  • Meets ASTM E84 flame specification
  • Mildew-resistant
  • Customized to suit specific air flow requirement
  • Aesthetically designed
  • Lightweight
  • Easily attached to exhaust fans and metal corner elbows
  • Exhaust end of duct can be closed, grommeted, or zippered


Soper’s Fabric Air Ducts Solve Humidity Problem

Soper’s Fabric Air Ducts Solve Humidity Problem

Sopair Fabric Duct Survey Sheet

Sopair Fabric Duct Survey Sheet

Sopair Ducts Sell Sheet

Sopair Ducts Sell Sheet

Request a Quotation


Find out how we can create a custom solution for your business. Call us or submit a quote below.

    Frequently Asked Questions

    How do I determine which Soper's solution is right for me?

    Our Soper’s team can help guide you in determining which solution will be best suited to your needs and requirements with one or more of our survey sheets. Our survey sheets can be found on our Resources page. Once we have received the initial input from your completed survey sheets, and if possible pictures of the potential installation area, we will go to work on developing some preliminary concepts.

    Contact Soper’s today at 1-800-263-8334 or at info@sopers.com and we can help you get started!

    What is your order turnaround?

    The intricacy and size of the job requested will determine the length of time needed for approximate delivery. While times may vary, there are 3 levels of job categories that determine order turnaround time.

    Level 1: When ordering stock items, your order will take approximately 2 days to process before shipment

    Level 2: For a standard (typical) curtain, one to two-day order entry, requiring at least one more day for drawing approval and an additional two weeks for manufacturing.

    Level 3: When working with a complex project or a custom design the order entry process will take 2-3 days, followed by 1-2 weeks for drawing approval and up to 3-5 weeks for manufacturing to be completed before shipping

    Delivery times vary on geography and are approximate and installation time will vary upon application.

    Contact Soper’s today to determine the level of service required for your next project.

    Why use a fabric duct versus a sheet metal duct?

    When installing a make-up air system, you want to consider efficiency and cost effectiveness when choosing your ducts. To achieve cleaner air and minimize the effects of negative pressure, consider the benefits of using fabr ic air ducts. Whether you are installing a new system or replacing existing ducts, Soper’s has a solution.


    • Low cost (vs. sheet metal ducts)
    • Easily installed/lightweight
    • Economical to replace
    • Reduces energy usage & energy costs
    • Quieter air delivery
    • Pressure equalization
    • Improve employee comfort


    • Custom sizes and design
    • Manufactured of white 5.2 oz Woven Polyethylene
    • Meets ASTM E84 flame specification
    • Mildew resistant
    • Customized to suit specific air flow requirement
    • Aesthetically designed
    • Easily attached to exhaust fans and metal c orner elbows
    • Exhaust end of duct can be c losed, grommeted, or zippered

    Call your HVAC contractor and Soper’s for a more in-depth discussion!

    Is your fabric flame retardant?


    When designing your custom solution, Soper’s can meet Class 1 ASTM E 84 or NFPA 701 flammability specifications and building code requirements by matching the right fabric to your application.

    Both Canada and the United States uphold strict codes and regulations that determine classifications of flame retardant fabrics. There are many testing methods and agencies that perform these tests including the National Fire Protection Association (NFPA) and American Society for Testing and Materials (ASTM). It’s important to note that flame-retardant materials are not fire proof. Here are some material examples that are used in a few of our popular product lines:

    Vinyl Coated Polyester (VCP) Select VCP materials meet NFPA-701, CAN/ULC-S109 and Class 1 ASTM E 84 flammability specifications Soper’s SoftWall Enclosures, Partitions and Curtains
    14 mil Polyvinylchloride (PVC) Clear PVC is a popular clear vinyl that is cost efficient, flexible, and durable and meets the NFPA-701 fire rating Curtains, Partitions and Welding Screens(PVC is available in clear or welding colours)
    Woven Polyethylene Woven polyethylene fabric provides extremely high tensile and tear strength in relation to its light weight and meets NFPA-701 and Class 1 ASTM E 84 flammability specifications Soper’s Curtains, Partitions and Fabric Air Ducts

    *Soper’s also carries a variety of specialty high temperature resistant fabrics

    Contact Soper’s today for a more in-depth discussion!

    Find a Distributor

    Soper’s: your engineered fabric experts. We have over 140 years of expertise in designing solutions for commercial, industrial, and warehouse challenges, combined with a proven reputation for customer satisfaction. Our knowledgeable team will help answer your questions and find a solution tailored for your business. Soper’s runs a growing agent and distribution network across Canada and the United States. We look for strategic alliances to market our broad product mix across North America and the world.

    Find a distributorContact us