Rolling Steel Door Versus Powered Operated Rolling Steel Door

[Builder Bob]

WE have a local who assumes that a rolling steel door is a powered rolling steel door and should reverse if it hits an object when the door drops under alarm conditions. The particular rolling still door uses a clutch that when released by fusible link or electro-magnetically sensor releases the clutches and the door spools down while being governed in dropping speed.

The full thing is that a motor is used in normal conditions to open and close the doors - now the local AHJ is stating the doors are powered and must meet the powered door criteria...... I believe they have the normal operation of the door confused with fire condition operation of the door.

What is a good source and a gentle way to inform them that the AHJ may be mistaken?


BB

 

[cda]

Its not a door

 

[cda]

I would start by asking the nice ahj for the section they are citing, so you can totally review it,

and post it here

 

[cda]

And it is a fire rated opening protection??? In a rated wall?????

 

[mtlogcabin]

Basically it is a fire shutter not a door and therefore the power operated door requirements are not applicable
Maybe this section will help explain it to him that it is not a "door" in the traditional sense


716.2.8 Rolling fire shutters.
Where fire shutters of the rolling type are installed, such shutters shall include approved automatic-closing devices.

 

[tmurray]

The only control we have is how fast that thing closes under NFPA 80.

We had one recently that closed so fast that it bounced back open when it hit the floor. Not an easy thing to do considering how heavy these doors are.

 

[cda]

The only control we have is how fast that thing closes under NFPA 80.

We had one recently that closed so fast that it bounced back open when it hit the floor. Not an easy thing to do considering how heavy these doors are.

And how well they are weekly maintained, and annual drop test, and no storage under them, and fork lifts never hit them.