jpranch
Platinum Member
Here is what I have. Use group H-2. 3 hour fire area separation wall between use B and the H-2. Overhead 3 hour rated door that is 12' wide by 20' high. Question: Is this rated overhead door required to be interlocked with the fire alarm and sprinkler systems? That is: if alarm or sprinkler initiation happens this 3 hour door shall have automatic closing?