Advanced Door Technologies

Advanced Door Technologies

design to manufacturing, installation and service

Contact Us Here
Our Services

ADT Rolling Steel Fire Doors are designed to automatically close in case of fire and stop it from spreading from one area to another for a maximum of 3 hours. Doors up to 159 sq. ft. in area and up to 13’6” in width or 12’0” in height are manufactured with UL Labels Class A , B,or C. Doors over these dimensions but less than 43’6” wide and 26’0” high are supplied with UL oversize certificates. Although UL rated and automatically closing, they can still be used as coiling service doors.

Furnish Rolling Service Doors, series 700 as manufactured by “ADT” complete with curtain, hood, guides, counterbalance and options as specified.


  • UL,3,1 1/2 and 3/4 hour labels
  • Smoke protection available
  • Automatic closing during fire
  • Available to fit openings 43’6”’wide x 26’ high
  • Maximum reliability
  • Viscous Governor Technology
  • 165˚ Fusible Link


  • manual lift
  • removable crank or chain hoist using gear reduction
  • external industrial motors
  • CGO – Chain hoist and crank with automatic testing
  • FDC-1000 Automatic Resetting Fire Door Motor Operator
  • FGH – Easy Reset FireDoor Motor Operator


Curtain consists of interlocking slats cold rolled formed from hot dipped galvanized steel or optional baked on grey polyester enamel coating or 304 stainless steel with a #4 finish curved profile (SC3) or flat profile (SF3). Each end of alternate slats are to be assembled with end locks to maintain slat alignment and to act as a wearing surface inside the door guides. Slats are designed to withstand windloads of 20 psf. Windlocks are furnished for greater windloads and upon request(consult factory). Slat thickness shall be calculated with U.S. gauging with a minimum of 20ga. for doors up to 20′ wide and 18ga. for wider spans. Steel slats are to be hot dipped galvanized as per A.S.T.M. A653. Each curtain shall receive a bottom bar to maintain slat alignment and posture.

Bottom bar shall consist of two steel shop primed angles a minimum 1/8″ thick.

Spring counterbalance is to be housed in a steel pipe of the appropriate diameter and wall thickness as to support curtain. Deflection shall be limited to a maximum of .03″ per ft. of door width. Springs are to consist of helical torsion type designed to meet a 25% safety load factor. Safety factor allows for safe operation, ease of use, and longer spring life. Springs are to be grease packed and anchored, using a cast iron anchor, to a cold rolled steel inner shaft. Spring tension shall be fully adjustable from outside of end bracket plate. To insure smooth operation end bracket plates shall contain sealed ball bearings to minimize wear of pipe shaft.

Drop Mechanism consists of a viscous speed governor, which controls the door’s rate of descent in emergency mode. The viscous governor is self adjusting and provides a smoother and quieter rate of descent within the NFPA 80 specification of 6” to 24” per second. The automatic drop mechanism may be activated by a fire alarm, smoke or heat detector, or a melting fuse link @ 165º (74ºC)

End bracket plates shall consist of steel plate no less than 1/4″ thick. Bracket plates are to house pipe shaft and counterbalance assembly. Shaft is attached to plate by sealed ball bearings fitted onto plate.

Guides shall consist of a minimum of 3″ structural steel angles a minimum of 3/16″ thick. The guide depth shall be of a length adequate to provide for proper slat penetration.

Hoods shall consist of a minimum of #24 gauge hot dipped galvanized steel. Hoods are designed to protect and house counterbalance assembly. To prevent hood sag, intermediate supports shall be furnished as required.

Locking for manual and chain operated doors to be slide bolts mounted on bottom bar with provisions for padlocks. Gearing within motors to be self locking.

Finish all non-galvanized surfaces shall receive a shop coat of rust inhibiting primer. Field painting not included in this section.

Installation to be by ADT or by an authorized dealer.


  • Baked on grey polyester enamel slats
  • Stainless steel slats
  • Poly-cote® polyester powder coating, 200 select colors
  • FDC-1000 Automatic Resetting Fire Door Operator with Battery Backup
  • Easy Reset Chain Hoists, Cranks, Motor Operators
  • LM Series Fire/Smoke Control System
  • Smoke Detector
  • Sounder
  • Strobe Light
  • Voice Warning
  • Flame Stop Baffle
  • UL Seals