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Curtain
Consists of interlocking IS3 thermal slats cold rolled formed from galvanized steel or optional baked on grey polyester enamel coating
or 304 stainless steel with a #4 finish. Curtain will provide a 8.50 nominal R value and a STG sound rating of 25. Each end of alternate slats
are to be assembled with a polycast nylon end locks to maintain slat alignment and to act as a wearing surface inside the door guides
and to reduce noise from metal to metal contact. Slats are designed to withstand windloads of 20 psf. Windlocks are furnished for greater
windloads and upon request (consult factory). Slat thickness hshall be calculated with U.S. gauging with a minimum of 22 ga. for doors
up to 30' wide and up to 18 ga. for wider spans. The interlocking minimum 22 gauge back slat encloses the insulating core reducing heat
and sound transmission. Steel slats are to be galvanized as per A.S.T.M. A635.
Insulation
Shall consist of CFC free closed cell urethane foamed injected insulation a minimum of 1" thick. Insulation is pressure foamed
in place bonding the both front and back slats while filling all voids and creating a thermal break.
Bottom Bar
Shall consist of two steel shop primed angles a minimum 1/8" thick. It will include a rubber astragal to form a weathertight
seal upon closing service door.
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 foot 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.
End Bracket
Plates shall consist of steel plate no less than 3/16" thick. The guide depth shall be of a length adequate to provide for proper
slat penetration and specified windloading. When windlocks are to be provided a windlock bar shall be furnished within guide to prevent
curtain from leaving the guides under windload.
Hoods
Shall consist of a miniumum of #24 U.S. gauge steel. Hoods are designed to protect and house counterbalance assembly. To prevent hood
sag, intermediate supports shall be furnished as required.
Full Weather Stripping
Shall include a neoprene hood baffle, vinyl guide seals and a rubber astragal on bottom bar.
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.
Installation
To be by ADT or by an authorized dealer.
Door Options
- High cycle springs
- 18 gauge slats
- 16 gauge slats
- Malleable iron endlocks
- Polycote Powder Coating
- Stainless steel slat
- Aluminum slat
- Sloping bottom bar
- Vision lites
- Cylinder locks
- Pass door
- Security panels
- Lintel Baffle
Operator Control Options
- Keyswitch
- Remote control
- Card reader
- Safety edge
- Photo beam
- Loop detector
- Warning lights
- Timer to close
- 7 day timer
- Electric interlocks
Energy Savings
Our insulated doors pay for themselves in less than 4 years. (Click here to see projection).
Download Brochure.
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