What's the trick to installing fire-wrap (Zero Clearance insulation) on grease duct?
3rd YearSpecialty DuctRED · Stop / Verify
Foil-faced fire wrap must be installed in a two-layer system with staggered joints.
Plain-English answer
Foil-faced fire wrap must be installed in a two-layer system with staggered joints.
Cut the blanket wrap so it tightly hugs the duct profiles, and create a minimum 3-inch perimeter overlap at all sheet edges. Secure the heavy wrap tightly to the metal using stainless steel banding straps spaced every 10 to 12 inches, or use heavy-duty stainless steel weld pins.
Field checklist
- Stop and verify the approved detail, manufacturer instructions, foreman direction, and project specs before touching it.
- Foil-faced fire wrap must be installed in a two-layer system with staggered joints.
- Cut the blanket wrap so it tightly hugs the duct profiles, and create a minimum 3-inch perimeter overlap at all sheet edges. Secure the heavy wrap tightly to the metal using stainless...
Ask Foreman
Hey boss, I’m on specialty duct and need verification before I touch this: What's the trick to installing fire-wrap (Zero Clearance insulation) on grease duct? Do you want me to stop here and check the approved detail, submittal, or inspector/manufacturer requirement first?
Verify before acting
Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.