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Aluminum Detention Screen Specifications Print this page



The screen shown on the plans and herein specified is the product of Avant Guards. The manufacturer’s name and products have been used to establish the standards of construction and quality of workmanship required for this project. Manufacturers bidding on this project must be actively engaged in the fabrication of specified items.


Manufacturers requesting approval to bid their product as equal must submit to the architect shop drawings that include details of attachment to surrounding materials and elevations showing scope of the project.

Quality Assurance

Items provided in the section shall be manufactured and fabricated by firm with 3 years experience in type of work specified. Performance and testing must comply with sag, impact, and forced entry resistance tests of ANSI/SMA 6001-1990, American National Standard. Specifications for Protection Screens must meet the performance requirements for a Heavy Rating.

Delivery, Storage, and Handling

Before and during shipment to site, adequately protect products. Products should be stored in conditions that protect from damage. Installation shall be by installers experienced in type of work specified for respective item.


Verify that openings fit allowable tolerances are plumb, level, provide a solid anchoring surface and comply with approved shop drawings. Plumb and align faces in a single plane and erect doors square and true adequately anchored. After completion of installation, screens shall be in working order and clean.


Manufacturer will supply a written one-year warranty on all products.


American Society for Testing and Materials (ASTM), American Welding Society (AWS)

Installation, adjusting, and Clean up

Install in accordance with approved shop drawings and specifications. Erect guards and other work of this section, rigid, straight, and plumb with horizontal lines level. Secure connections and attachment. Adjust guards and hardware and leave in working order where applicable. Clean work of this section upon completion. Remove debris resulting from work of this section.



Acceptable Manufacturers

Avant Guards Manufacturing
219 Cook Street
Brooklyn, NY 11206
(718)366-6565 fax.(718)366-0010

Aluminum Detention Screen Materials

The aluminum mainframe, at 1/8" thickness, and the 1/16" thick concealment plate are to be connected by # 8 screws. The corners of the mainframe shall be continuously welded and ground smooth.

The aluminum sub frame, at 1/8" thickness shall be notched for self-aligning and welded on both sides to provide a rigid frame.

An overlap as part of the frame is required to prevent direct exposure between the mainframe and sub frame.

No brace is available for this screen. Scribe angles or channels are optional as per specification.
Infill Option:
10 and 12 mesh stainless


Welding shall comply with requirements of AWS. Grind welds smooth. Window guards, unless otherwise shown, shall cover entire window opening. Provide frame and accessories of size and construction as shown on drawings. Window guards over 5’ wide or 8’ high will be fabricated in two sections.

Paint and Finish

All interior and exterior surfaces of the mainframe and shall be thoroughly cleaned in a three-step bonderizing process. The surfaces shall receive an electro-statically applied thermoplastic polyester powder coating, which shall be applied and baked to a hard mar-resistant finish in a standard or custom color. Touch-up paint is available for installation.

Locks and Hardware

3 _" x 2 _" F.P. butts brass pin hinges, to have 2 hinges for guards under 5’, and 3 hinges per guard 5’ and over.
The infill hardware consists of bolts, clevises, stainless steel pins, oil tempered coil springs, washers, and full tempered steel 1/8" x 3/8" shock distributing bars.

Lock Options:
Lift Quick
Panic Push
Push Down
Bit- Key


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