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Design Proposal – DuctSox Fabric Air-Distribution as an Alternative to Sheet-Metal Ductwork
Prepared for: [Client / Project]
Prepared by: [Your Name / Company]
Date: [Insert]
1. Executive Summary
We propose DuctSox® engineered fabric ducting, supplied by ecoHVAC, as a superior alternative to conventional sheet-metal ductwork for this project.
DuctSox is specifically engineered for open-plan spaces, provides uniform low-velocity air distribution, prevents condensation through porous fabrics, is fully washable for hygiene, offers architectural-quality aesthetics including custom branding, and installs significantly faster than metal ductwork.
Manufacturer overview:
DuctSox Fabric Ducting | Textile Air Dispersion Systems
2. Why DuctSox Is Recommended for This Project
2.1 Ideal for Large Open Spaces
DuctSox is purpose-designed for open-plan environments—such as school halls, multipurpose rooms, sports centres, gyms, retail, showrooms, warehouses and exposed-ceiling architectural spaces.
Because the duct itself becomes the diffuser, DuctSox delivers broad, uniform coverage without the complexity of multiple steel branches and diffusers.
2.2 Porous Fabric = No Condensation, No Floor Drips
The air-permeable fabric eliminates surface condensation even when:
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roller doors or large doors are open
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windows introduce humid outside air
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there are rapid shifts in indoor/outdoor humidity
This prevents dripping—an issue common with cold metal ductwork in semi-conditioned spaces—making DuctSox ideal for active environments where safety and cleanliness are critical.
2.3 Fully Washable for Hygiene & IAQ
DuctSox systems are fully removable and machine-washable.
Key benefits:
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No internal insulation to harbour dust or microbial growth
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No hidden contamination zones
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Easy, low-cost cleaning aligned with AS 3666 hygiene principles
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Improved IAQ and building cleanliness
This is a major advantage over sheet-metal ducting, which is expensive and difficult to clean.
2.4 Even, Low-Velocity Air Distribution
DuctSox delivers consistent, low-velocity air distribution through engineered micro-perforations, vents or directional nozzles.
This removes hot/cold spots and eliminates drafts typical of grille/diffuser-based systems.
Air dispersion options:
https://ecohvac.com.au/collections/ductsox-fabric-ducting
2.5 Architectural Aesthetics & Custom Branding
DuctSox enables high-quality visual outcomes for exposed ceilings, offering:
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multiple colours
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round, oval or D-shaped profiles
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architectural fabric finishes
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custom-printed branding/logos (schools, sporting clubs, retailers)
This creates a clean, modern appearance that sheet-metal ductwork cannot provide.
2.6 Faster Installation & Lower Structural Loads
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Typically installs 40–60% faster than metal ductwork
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Up to 95% lighter
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Minimal lifting or cranage required
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Lower structural load on trusses, purlins or ceiling systems
This improves construction program efficiency and reduces installation risk.
3. Suspension Options
3.1 Skeleton Suspension System (Rigid Track)
Best for: open spaces with visible ductwork, gyms, schools, retail.
Features:
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Rigid, shape-retaining aluminium or composite track
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Maintains round or D-shape profile even when the system is off
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Premium architectural appearance
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Stable in environments with activity, movement or impact
3.2 Catenary Suspension System (Cable System)
Best for: long spans, high-level areas, large open halls and warehouses.
Features:
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Tensioned stainless-steel cables
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Minimal structural load
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Economical and fast to install
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Clean, lightweight appearance
Selecting the Right Option
ecoHVAC typically recommends:
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Skeleton for architectural visual impact, stability, and shape retention
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Catenary for long spans, high bays and minimal structural impact
4. Key Advantages Summary
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Engineered specifically for open-plan spaces
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Condensation-free porous fabric (ideal when doors/windows are open)
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Fully washable for superior hygiene and IAQ
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Even air distribution along the entire duct run
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Architectural appearance with custom branding options
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Fast installation with lower structural load
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Choice of Skeleton or Catenary suspension systems
5. Compliance & Performance Notes
DuctSox supports:
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NCC Section J energy objectives (lower static pressure)
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AS 1668.1/1668.2 airflow performance
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AS 3666 hygiene expectations (washable materials, no internal insulation)
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ecoHVAC selection and engineering data for certification
Notes to Contractors and Designers (Separate From Proposal)
ecoHVAC will prepare a complete DuctSox system design, including fabric selection, perforation/nozzle patterning, sizing, and suspension details.
Information Required by ecoHVAC
Please provide the following:
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Mechanical drawings (DWG/PDF) or RCP showing duct runs
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Airflow quantities per run (L/s)
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Available static pressure at the supply connection
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Mounting height and any structural support limitations
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Building use and environmental conditions
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Preferred duct profile (Round / Oval / D-shape)
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Colour or custom logo/branding requirements (optional)
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Required suspension type (Skeleton Track or Catenary Cable)
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Any constraints regarding access, installation sequence or ceiling services
ecoHVAC Will Provide
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Full DuctSox selections (fabric, permeability, perforations, nozzles)
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Layout and sizing
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Suspension system specification
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Fixing and installation details
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Documentation for design certification, tender or builder approval
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