Corrosion-Resistant Systems · Stainless Round & Spiral Duct
Install stainless round rooftop duct
Stainless round duct — Exterior corrosive exposure
Hardware guidanceUse exterior-grade stainless fasteners and compatible isolation pads.
Anti-seize / gallingUse anti-seize compatible with exterior moisture and specified alloy.
How to install it
- 1
Use approved stands with broad saddles
- 2
isolate dissimilar metals
- 3
install weather-resistant joints
- 4
allow expansion
- 5
provide wind/seismic restraint and drainage.
Quality check
- No crevice traps, galvanic contact, or standing water.
Stop and verify
Stop without structural, wind, roof, and expansion details.