MASTER SPECIFICATION

SECTION 02825

ORNAMENTAL FENCES AND GATES

 PART 1 GENERAL

 1.1 DESCRIPTION OF WORK

A. Provide steel fence framing and ornamental fences and gates of the following type:

Choose applicable fence and gate components from the following:

1. Wire mesh fence panels.

2. Inclined section (formed main bar) fence panels.

3. Swing gates matching adjacent fence panels.

4. Sliding gates matching adjacent fence panels.

B. Related Work Specified Elsewhere:

1. Concrete Work: Section _________

Consult motor operator manufacturers for guidance in specifying operator systems. Metalco does not provide motor operators.

2. Motor Operator For Gates: Section _____

3. Electrical Work In Connection With Motor Operated Gates: Division 16 ELECTRICAL.

1.2 PERFORMANCE CHARACTERISTICS

A. Polyester Powder Coating:

1. Salt Spray Resistance: When tested in accordance with ASTM B117, Bonderite 1000 steel panels, in a scored condition, exhibit no undercutting after 500 hours in 5 percent salt spray testing at 95 degrees F and 95 percent relative humidity. No rusting or blistering on panel face. Under the same conditions after 1000 hours, the panels showed less than 3/16 inch undercutting.

2. Weatherability: When tested in accordance with ASTM D822, with one year exposure in South Florida, with panels facing south and tilted at a 45 degree angle, a high gloss white polyester coating retains 88 percent of its gloss (gloss reading obtained on washed panels). No film failure.

3. Hardness: 2 H (min) when measured in accordance with ASTM D3363.

4. Direct Impact: Up to 160 in./lbs. when measured in accordance with ASTM D2794.

B. Polyurethane Coating: Tests below conducted on Bonderite 1000 panels at 1.0 mil dry film thickness, cured for 30 minutes at 180 degrees F and aged 14 days at room temperature (25 degrees C). Results of each test: Excellent or no failure.

1. 5 percent salt spray: 500 hours.

2. 100 percent relative humidity: 1000 hours.

3. Water immersion: 100 hours.

4. Lacquer thinner, acetone, MEK, gasoline, xylene - 20 double rubs with saturated cloth.

5. Lubricating oils, hydraulic fluids, and cutting oils.

6. Cold Check: 16 cycles, 24 hours at 100 percent humidity; 24 hours at 10 degrees F; 24 hours at 77 degrees F.

7. Pencil Hardness: H to 2H.

8. Flexibility: 1/8 inch conical mandrel.

1.3 SUBMITTALS

A. Product Data: Submit manufacturer's technical data for ornamental fences and gates.

B. Samples: For each fence panel type selected, submit one representative sample approximately 8 inches by 10 inches, showing fabrication workmanship and selected coating color.

C. Shop Drawings: Submit shop drawings for ornamental fences and gates, including plan layout and details illustrating fence height, location and sizes of support posts, footing requirements, gates and gate hardware.

If specifying motor operated gates, retain the following paragraph.

1. For motor operated gates, include details of provisions to accommodate motor operator components.

1.4 WARRANTY

A. Atlantis Products, Inc., Inc.certifies that its Metalco fencing systems are free from defects in material and workmanship. The polyester-coated galvanized metal is guaranteed not to crack, peel or blister for a period of 10 years. Accidental damage, defects resulting from improper installation and damage from vandalism or abuse are not included. Warranty is limited to prorated value of the coating, not to exceed the original value of the coating.

PART 2 PRODUCTS

2.1 MANUFACTURER

A. Products specified herein are components of the "Metalco Grigliato System", and produced by Atlantis Products, Inc., Inc., 8185 S. Cass Ave, Darien, IL  60561, Tel: 877-638-2526
Website: www.metalco.tv

2.2 MATERIALS AND FABRICATION

A. Fabrication: Fence panel components shall be manufactured using the electro-forge welding process for complete penetration of cross members.

B. Configuration: Fence panels and support components shall be fabricated to the configurations shown on the contract drawings.

C. Steel Bar Stock: ASTM A36.

D. Steel Tubing: ASTM A500, Grade B.

2.3 FENCE PANELS - OPEN GRILLE CONSTRUCTION

Select applicable design from the following paragraphs. See Sweet's printed catalog or www.metalco.us for illustrations of designs.

Grigliato “A”
Characteristics
Widely used for Fence and Railing Designs. Hard to climb rectangular mesh.
Applications

Suitable for a vast range of applications. It can be used for prestigious projects as well as for high security needs. Applications include Sports, Schools, Institutional, Military, Urban and more

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “A” by Atlantis Products, Inc., Inc., Tel. 800-708-2526. 2 7/16” x 5 3/16” (62x130) mesh. 31/32” x 1/8” (25x3), main bar, 3/16” (5) cross rod. Galvanized to ASTM 123 and/or polyester powder coated.

Grigliato “B”
Characteristics
Square mesh style. Very sturdy and hard to climb. Clean lines.
Applications
Fencing and Railing. Very versatile for commercial and residential use. Suitable for decorative applications (screens, dropped ceilings) as well as for railing applications.
Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “B” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 2 7/16” x 2 19/32” (62x65) mesh. 31/32” x 1/8” (25x3) main bar, 3/16” (5) cross rod. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “C”
Characteristics
Square mesh style. Light in appearance with good “see through” ability. 
Applications
Fencing and Railing. This model is well suited for applications which require a light and inconspicuous design with good “see through” quality. Also suitable for interior decorating (ceiling, divider, ect.).

Limitation: This model is easy to climb.
Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “C” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 3 15/16” x 3 15/16” (62x65) mesh, 31/32” x 1/8” (25x3) main bar, 3/16” (5) cross rod. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “D”

Characteristics
Hard to climb rectangular mesh. Very sturdy and hard to climb.

Applications

Fencing and Railing. Similar mesh size as Grigliato “A”, extremely sturdy design for wide spans or high security applications.

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “D” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 2 7/16” x 5 3/16” (62x130) mesh, 1 3/16 x 5/32” (30x5) mainbar, ¼” (6) crossrod.  Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “E”

Characteristics

Very small mesh, widely used in applications where a screen effect is wanted.
Applications

Screen Walls, Railings, Back Drops,

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “E” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 1” x 5 3/16” (24x130) mesh, 31/32” x 1/8” main bar (25x3), 3/16” (5) crossrod. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “F”

Characteristics

Very small mesh, widely used in applications where a screen effect is wanted.
Applications

Extremely small mesh for special effects. High security fence and railings, does not allow the passing of objects (i.e. Weapons) through the mesh. Used at airports, correctional facilities and for window protection.

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “E” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 1” x 1” (24x24)mesh, 31/32” x 1/8” main bar (25x3), 3/16” (5) crossrod. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “G”®

Characteristics
Widely used for Fence and Railing Designs. Hard to climb rectangular mesh.
Applications
Fencing and Railing. Suitable for a vast range of applications. It can be used for prestigious projects as well as for high security needs. Applications include Sports, Schools, Institutional, Military, Urban and more

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “G” by Atlantis Products, Inc.,Inc. , Tel. 800-708-2526. 2 3/8” x 4” (62x100) mesh,  31/32”x1/8” (25x3)mainbar, 3/16” (5) crossrod, 1”x 3/16” (25x4) frame bar. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “H”

Characteristics
Square mesh style. Very sturdy and hard to climb. Clean lines

Applications
Fencing and Railing. Very versatile for commercial and residential use. Suitable for decorative applications (screens, dropped ceilings) as well as for railing applications.

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “H” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 2 3/8” x 2” (62x50) mesh, 1” x 1/8” (25x3) mainbar, 3/16” (5) crossrod, 1”x3/16” (25x4) framebar. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “J”

Characteristics
Square mesh style. Light in appearance with good “see through” ability.

Applications
Fencing and Railing. This model is well suited for applications which require a light and inconspicuous design with good see through quality. Also suitable for interior decorating (ceiling, divider, ect.).

Limitation: This model is easy to climb.

Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “J” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 4 7/8” x 5 3/16” (125x130) mesh, 31/32” x 1/8” (25x3)mainbar, 3/16” (5) crossrod, 1” x 3/16” (25x4) framebar. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “K”
Characteristics
Square mesh style. Very sturdy and hard to climb. Clean lines.
Applications
Fencing and Railing. Very versatile for commercial and residential use. Suitable for decorative applications (screens, dropped ceilings) as well as for railing applications.
Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “K” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 1 21/32” x 5 3/16” (40x130) mesh, 31/32” x 1/8” (25x3) main bar, 3/16” (5) cross rod. Galvanized to ASTM 123 and/or Polyester powder coated.

Grigliato “L”
Characteristics
Square mesh style. Very sturdy and hard to climb. Clean lines.
Applications
Fencing and Railing. Very versatile for commercial and residential use. Suitable for decorative applications (screens, dropped ceilings) as well as for railing applications.
Specify:
Electro-forge welded steel panel. Type Metalco^® Grigliato “L” by Atlantis Products, Inc., Inc. , Tel. 800-708-2526. 1 21/32” x 1 3/4” (40x45) mesh, 31/32” x 1/8” (25x3) main bar, 3/16” (5) cross rod. Galvanized to ASTM 123 and/or Polyester powder coated.

E. Picket Type Construction:

If specifying picket construction, choose one of the following paragraphs:

1. Top Pickets: Fabricate sections for top pickets using a top cap and a bottom tube.

2. Top and Bottom Pickets: Fabricate sections for top and bottom pickets using tubes welded to back of fencing panels near top and bottom of panels.

2.4 FENCE PANELS - INCLINED SECTION (FORMED MAIN BAR) CONSTRUCTION

In paragraph below, select degree of visual screening. See Sweet's printed catalog or our website at www.metalco.us  for illustrations of formed configurations.

A. Grigliato SC: Main bars formed for [80 percent] [100 percent] direct visual screening. Main formed bars 1-31/32 inch by 1/16 inch at 4-7/8 inch centers. Round cross bars 5/32 inch diameter at 5-7/32 inch centers.

Inclined section panels may be mounted with main bars either vertical or horizontal. Select vertical or horizontal bar orientation below.

1. Main Bars: Mounted vertically.

2. Main Bars: Mounted horizontally.

2.5 ANTI-INTRUDER PROVISIONS

A. Anti-Intruder Posts: Steel bar stock posts fabricated with canted extension arm to carry three galvanized barbed wires and three holes for electrified wires. Extension arm dimensions: 11-3/4 inches by 2-3/8 inches by 5/16 inch.

B. Canted Fence Panel Extensions: Panels matching adjacent fence panels in grid design and finish. Bolt to vertical fence panels.

2.6 GATES

A. Fabrication: Fabricate perimeter frames of gates from steel tubing. Finish to match fence panels. Assemble gate frames by welding at corners.

1 . Infill gate frames with panels to match adjacent fence panels.

B. Swing Gate Hardware: Provide hardware and accessories for each gate, galvanized and shop finished to match adjacent gate components.

1. Hinges: Size and type to be determined by Metalco. Brass washer leaf hinges for light gates; 5 inch or 7 inch ball bearing hinges for medium and heavy gates. Provide two hinges for each leaf up to 6 foot nominal height, and one additional hinge for each additional 24 inches in height, or fraction thereof.

2. Bolt: Padlockable slide bolt, 3/4 inch diameter.

3. Double Gates: Provide center padlockable cane bolt assembly mounted to gate vertical frame designed to engage strike with anchors, set in concrete.

C. Sliding Gate Hardware:

Select one of the following types of sliding gates:

1. Cantilever Slide Gate: Gate assembly supported by top aluminum track and bottom roller guides bracketed from a pair of support posts.

2. V-Wheel Roller Gate: Gate assembly riding on V-wheels which ride on ground set V-track. Assembly braced at top by adjustable guide wheels mounted on brackets attached to stabilizing posts.

2.7 FINISHING

Note that the galvanizing process can leave minor irregularities in the form of flashings, drips, and drops on the metal surface. These irregularities have no detrimental effect on the corrosion resistance of the coating.

A. Galvanizing: Posts and open grille construction fence panels, Inclined section (Formed Main Bar) fence panels shall be hot-dip galvanized in accordance with ASTM A123.

B. Color Coating: After galvanizing components shall be shop coated with polyester powder coating, or in the case of over-size components, shop coated with Sherwin Williams "Polane" two-part polyurethane shop coating.

C. Color of Shop Coating:

1. Black

2. Green

3. Grey

4. White.

5. Blue

6. Brown

7. Yellow

8. Red

Choose from standard colors above, or after consultation with Metalco, specify custom color below:

11. Custom color selected by the Architect.

PART 3 EXECUTION

3.1 INSPECTION

A. Examine the conditions under which the fences and gates are to be installed and advise the General Contractor of any conditions detrimental to the proper and timely completion of the work. Work shall not proceed until unsatisfactory conditions have been corrected in a manner acceptable to the Installer.

3.2 INSTALLATION

A. General: Install ornamental fences and gates in accordance with manufacturer's recommendations.

B. Posts: Diameter of setting holes for posts shall be 2 inches larger than post width. Set posts into setting holes plumb and square, using non-shrink grout.

1. In concrete footer of wall - diameter of setting holes for post shall be 2" (51mm) larger than post width.

2. On ground - post may be set in concrete in holes 12" (305mm) in diameter for terminal posts and 10" (254mm) in diameter for intermediate posts.

3. Concrete should be 6" (152mm) deeper than posts. Deeper and wider settings may be necessary in some locations.

4. It is recommended that the fences be temporarily erected using 2 x 4 supports. After the fence is plumb and level, pour grouting into holes.

C. Fence Panels:

1. Bolt to posts using standard stainless steel bolts.

For high security areas, delete standard bolts in above paragraph and include the following:

2. Bolt to posts using anti-intruder bolts, consisting of cup head bolt and clamping hexagon. When tightened to the correct torque, the hexagon shall shear and render the bolts impossible to release.

D. Gates: Install gates plumb, level, and secure for full opening without interference. Anchor ground-set items in concrete. Adjust hardware for smooth operation and lubricate where necessary.

If specifying motor operators for gates, retain the following:

1. Coordinate with installer of motor operators to achieve proper installation of motor operated gates.

END OF SECTION