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Rolling Steel Door Versus Powered Operated Rolling Steel Door

Builder Bob

Sawhorse
Joined
Oct 17, 2009
Messages
2,382
Location
Sunny SC - Coastal (not Charleston or Myrtle Beach
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

Sawhorse 123
Joined
Oct 19, 2009
Messages
20,358
Location
Basement
I would start by asking the nice ahj for the section they are citing, so you can totally review it,

and post it here
 

mtlogcabin

Sawhorse
Joined
Oct 17, 2009
Messages
7,979
Location
Big Sky Country
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

Registered User
Joined
Jun 10, 2011
Messages
2,083
Location
NB, Canada
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

Sawhorse 123
Joined
Oct 19, 2009
Messages
20,358
Location
Basement
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.
 
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