Aluminum foil for duct is widely used in HVAC systems, offering flexibility, insulation, and heat resistance. This type of foil is perfect for connecting heating, cooling, and ventilation systems while maintaining energy efficiency.
Technical Specifications
| Parameter | 8011 Alloy | 3003 Alloy |
|---|---|---|
| Thickness | 0.05-0.08mm | 0.08-0.12mm |
| Temper | O (Dead Soft) | O/H22 (Semi-Soft) |
| Tensile Strength | 95-130 MPa | 110-145 MPa |
| Max Temperature | 150°C (302°F) | 200°C (392°F) |
| Best For | Flexible ducts | Spiral rigid ducts |
Types of HVAC Duct Foils
1. Flexible Duct Foil
- Construction:
- Aluminum foil + polyester film laminate
- Steel wire helix reinforcement
- Applications:
- Residential HVAC systems
- Dryer venting
2. Rigid Duct Wrap
- Features:
- 3003 alloy with fiberglass backing
- Self-adhesive options available
- Uses:
- Commercial duct insulation
- Industrial exhaust systems
3. Foil Tape
- Specs:
- 0.08mm 8011 foil + acrylic adhesive
- 50mm/75mm/100mm widths
- For:
- Sealing duct joints
- Repairing minor leaks
Key Applications
HVAC Systems
- Air conditioning ducts
- Heat pump conduits
- Ventilation piping
Industrial Ventilation
- Kitchen exhaust hoods
- Factory fume extraction
- Laboratory air handling
Appliance Connections
- Clothes dryer vents
- Range hood exhausts
- Bathroom fan ducts
Installation FAQs
Q: Can I use flexible foil duct for HVAC?
A: Yes – For:
Residential branch lines
Short runs (<10ft)
Not for main trunk lines
Q: Is flexible foil duct safe?
A: When properly installed:
Fire-resistant (meets UL 181)
Mold/mildew resistant
Avoid sharp bends (restricts airflow)
Q: Biggest drawback of spiral flexible ducts?
A: Higher air resistance vs rigid ducts (15-20% more static pressure loss)
Q: How to connect flexible foil ducts?
- Slide duct over collar
- Secure with 3+ sheet metal screws
- Seal with foil tape (NOT duct tape)
Q: Can I wrap existing ducts with aluminum foil?
A: Only for insulation enhancement – Must:
✔ Use foil-faced fiberglass wrap
✔ Avoid compressing insulation
Performance Comparison
| Factor | Flexible Foil Duct | Rigid Metal Duct |
|---|---|---|
| Installation | Easy (cuts with scissors) | Requires professional tools |
| Airflow | Good (when fully extended) | Excellent |
| Durability | 5-8 years | 15-20 years |
| Cost | 3−3−8 per linear foot | 10−10−20 per linear foot |
Why Choose Our Duct Foils?
✔ ASTM B479 compliant for HVAC use
✔ Pre-slit rolls (300mm/600mm widths)
✔ Custom laminations (fiberglass, scrim reinforced)
✔ Fire-rated options (Class 0/Class 1)
Packaging Options
- Standard Rolls:
- 25m/50m lengths
- Cardboard cores + plastic wrap
- Pre-Cut Sheets:
- 1200x2400mm
- Foam corner protectors
- Bulk Orders:
- Palletized with moisture barrier
- Weatherproof crates for export
What is HVAC Aluminum Duct Foil?
Aluminum foil for ducts is a specialized material used in heating, ventilation, and air conditioning (HVAC) systems, offering:
✔ Heat reflection – Improves thermal efficiency
✔ Moisture resistance – Prevents condensation buildup
✔ Lightweight flexibility – Easy installation
Made from corrosion-resistant alloys for long-term durability in air handling systems.
Maintenance Tips
- Annual Inspection: Check for:
- Tears at connection points
- Sagging sections
- Cleaning:
- Vacuum interior with brush attachment
- Wipe exterior with damp cloth
- Repairs:
- Small holes: Apply foil tape
- Large damage: Replace section
Ordering Information
- Select alloy/thickness
- Choose reinforcement type (none/wire helix/fiberglass)
- Specify roll width/length
- Receive quote within 24h
Minimum Order:
- 10 rolls for standard sizes
- 50m² for custom laminations
Conclusion
Aluminum foil ducts provide cost-effective, efficient airflow solutions for residential and light commercial HVAC systems. Proper selection and installation ensure optimal performance and longevity.
Get expert advice – Contact our engineering team today!
