ARCHITECTURAL SPECIFICATIONS

770SS Mini-Storage Sheet Door

Part 1 General

1.01 Work Included

The rolling sheet doors shall be 770SS Door Series as manufactured by Overhead Door Corporation.

1.02 Related Work

Opening preparation, miscellaneous or structural metal work, access and finish or field painting are in the Scope of Work of other divisions or trades.

Part 2 Product

2.01 Curtain and Header

Curtain shall be roll-formed, 26-gauge galvanized steel sections interlocked and seamed together to form a continuous curtain for full door height in a profile that minimizes door nesting.

A flexible pvc strip shall be on each edge of the curtain's exterior side to prevent steel-to-steel contact enhancing door operation and minimizing nesting and curtain scratching. Curtain shall be painted in one of the 14 standard colors. (Other colors available upon request.) Color warranty shall be a 20 year limited warranty on all standard colors.

2.02 Guide and Headplate Assembly

Guides shall be roll-formed from 18-gauge steel. Guides shall be 1 1/2" (38 mm) wide with abrasion resistant polypropylene strips on each edge of the guide. Through-hole design shall allow easy access from the front of the guide for fastener attachment to the door jamb material. The guides shall be a universal design for use in concrete, steel, wood or masonry. Guides shall be pre-punched to accept quick-connect attachment of the headplate and bottom bar stops.

Headplate shall be of quick-connect design for quick assembly to the guides. Headplates shall be 14-gauge steel and include standard roller bearings to prevent steel-to-steel contact for improved door operation and extended door shaft life.

2.03 Bottom Bar and Bottom Bar Stops

Bottom bar shall be of extruded aluminum reinforced with steel 1 1/2" by 1 1/2" (38 mm by 38 mm) roll-formed angle and provided with a flexible pvc bulb type astragal to ensure a consistent seal along the floor. It shall interlock with door curtain in such a manner as to ensure full door integrity.

Bottom bar stops shall be of  "quick-connect" design that allow the curtain to be inserted into the universal guide then locked into place without the use of fasteners. Bottom bar stops shall be 14-gauge galvanized steel.

2.04 Counterbalance Assembly

Counterbalance assembly shall include "stepped" designed steel rings to ensure a tight and uniform curtain wrap. Spring(s) shall be 3 3/8" (86 mm) diameter torsion springs. Shaft shall be 1 5/16" (33 mm) diameter with .065" (2 mm) wall thickness to minimize door deflection.

2.05 Lock

Lock shall be two-bolt, double lock with yellow Di-Chromate Super Seal. Lock includes pre-formed features to accept a cylinder type lock, if desired. (Optional left-side lock and step plate.)

2.06 Operation

Operation shall be by manual push-up aided by center lift handle and center rope attached to bottom bar angle, and includes side step plate.

2.07 Packaging

The 770SS Series doors shall be packaged and crated in such a manner to ensure that the doors do not touch during shipping. Doors shall be individually wrapped.

Part 3 Execution

3.01 Execution

The 770SS Series doors shall be installed in accordance with Overhead Door Corporation instructions and standards without exception.

Note to specifier: This specification is a suggested guide. Available options are shown in parentheses