① R6 / R8 Thermal Insulation — Proof-Grade Performance High-density glass wool (16kg/m³ or 32kg/m³, 25mm/30mm thick) delivers R6 and R8 thermal resistance. R8 meets North American attic code requirements for ducts ≥3" in unconditioned spaces; both ratings minimize energy loss and condensation. Available in imperial (R6/R8) and metric thermal performance documentation per AS/NZS 4859 for Australia and New Zealand.
② UL 181 Class 1 Listed — Compliance You Can Point To Manufactured and tested to UL 181 Class 1 Air Duct / UL 181B-FX standards. Non-combustible aluminum foil and fiberglass construction carries a Class A fire rating — the evidence needed for hospital, school, hotel, and commercial inspections.
③ 5:1 Compression — One Truckload Becomes Five Compresses to 1/5 of extended length for storage and transport. Reduces freight volume by up to 80%, cuts on-site handling time, and springs back to full shape with no sag or kink. Easily cut to length with a utility knife — no special tools.
④ Wide Temperature Range — -30℃ to +150℃ From frozen outdoor intake runs to hot plenum connections, the EV-ALU operates across -30℃ to +150℃ (-22℉ to +302℉). Stable dimensional performance under extreme cycling, no brittleness in cold, no softening in heat.
⑤ Acoustic Insulation — Quieter Ductwork The glass wool core absorbs vibration and reduces duct-borne noise by up to 40-50%. Perforated inner duct option available for enhanced acoustic performance in offices, hotels, and residential HVAC.
⑥ Flexible, Fast, Compatible
Diameters from 4'' to 24'' (100mm to 600mm), 6m / 10m rolls or custom lengths
Compatible with standard duct connectors, clamps, flanges, and duct booster fans
Lightweight and easy to hang with saddle hangers or strap
OEM/ODM: custom branding, packaging, insulation thickness, and length
