AnsweredAssumed Answered

Insulation for exhaust duct(smoke)?

Question asked by 15910619811 on Nov 2, 2016
Latest reply on Nov 21, 2016 by

Hello, everyone!

I 'm an Chinese engineer for HVAC.

I would like to whether the exhaust duct (smoke) need to be insulated, for protecting burns, in NFPA code?

Thank you!