Kitchen Hood Exhaust Insulation
Kitchen Hood Exhaust Insulation
(OP)
I'm installing a welded 16ga black iron duct for a commercial kitchen hood. Do I need to insulate the duct with firewrap. Wanted to make sure I'm reading the mechanical code correctly.
506.3. Grease duct clearances:
Where enclosures are not required, grease duct systems and exhaust equipment serving a Type I hood shall have a clearance to combustible construction of not less than 18"....
So if my grease duct is more than 18" away from any combustibles I don't need to insulate it?
My thought was to insulate with firewrap where I come through the roof then stop the insulation as long as I'm more than 18" from any combustibles.
506.3. Grease duct clearances:
Where enclosures are not required, grease duct systems and exhaust equipment serving a Type I hood shall have a clearance to combustible construction of not less than 18"....
So if my grease duct is more than 18" away from any combustibles I don't need to insulate it?
My thought was to insulate with firewrap where I come through the roof then stop the insulation as long as I'm more than 18" from any combustibles.





RE: Kitchen Hood Exhaust Insulation
knowledge is power
RE: Kitchen Hood Exhaust Insulation
B.E.
You are judged not by what you know, but by what you can do.
RE: Kitchen Hood Exhaust Insulation
Building is about 18' high. Bottom of hood at 6'6", top 9'6". Wall hood is against ends at 10' high. Duct goes straight up from hood to roof. No combustibles within a few feet, except where we penetrate the metal deck at roof level.
RE: Kitchen Hood Exhaust Insulation