GI Ducting Solutions for HVAC Systems
GI (Galvanized Iron) ducting remains the most widely used material for HVAC air distribution due to its strength, durability, fire resistance, and cost-effectiveness. Perfect HVAC Solutions delivers complete GI ducting projects - fabrication, supply, and installation - for HVAC systems across commercial, residential, and industrial buildings.
Why GI Ducting
GI ducting offers an ideal balance of properties for HVAC applications - excellent strength to handle pressure and weight, corrosion resistance from the zinc coating, fire resistance for life safety, easy fabrication into custom shapes, and affordable cost compared to specialty materials.
Our GI Ducting Capabilities
- Rectangular ducting in standard sizes from 100mm x 100mm to 3000mm x 1500mm
- Round spiral ducting from 100mm to 2000mm diameter
- Oval ducting for low ceiling applications
- Gauge thicknesses 18, 20, 22, 24, 26 per duct size and pressure class
- SMACNA-compliant joints (TDC, slip, drive, vanstone)
- External thermal insulation and acoustic lining options
Fabrication Standards
Our GI ducting is fabricated in our well-equipped workshop following SMACNA HVAC Duct Construction Standards and ASHRAE guidelines. We use precision shears, brake presses, lock formers, and seam closers for consistent quality. All duct sections are pressure-tested before dispatch to site.
Installation Excellence
Site installation includes proper hanger and support systems, sealed joints with duct sealant, transition fittings (reducers, elbows, branches), volume control dampers, fire/smoke dampers per NBC, access doors for cleaning, and final external thermal insulation with aluminum foil cladding for energy efficiency.
Industries and Sectors
Our GI ducting projects span IT offices, hospitals, hotels, malls, factories, residential apartments, government buildings, educational institutions, and laboratories. Every project is sized and engineered for the specific airflow, pressure, and noise requirements.
Quality and Compliance
All ducting work meets SMACNA standards, ASHRAE guidelines, NBC fire safety requirements, and IGBC sustainability criteria where applicable. We provide complete material test certificates, fabrication drawings, and installation handover documentation.
