Products

Manufacturer:
The fencing system shall be (Residential, Aero or Commercial) strength Aluminum Ornamental Fence as manufactured by Delgard Premier Aluminum Fence,  Delair, NJ 08110. The fence shall be Delgard's style (A,B,D,E, H or I) in Residential (A,D,E, or G) and Aero or (M,T,L,or S) in Commercial strength in heights of (3, 3-1/2, 4, 4-1/2, 5, 6 or 8) feet. The color of the fence system shall be black, white, bronze or hunter green.

Materials:
A. Aluminum Extrusions: The structural members of the fence system shall be extruded from 6061-T6 (or an equivalent performing alloy registered and recognized in the Aluminum Standards and Data book produced by the Aluminum Association) with a minimum ultimate strength of 38,000 PSI and a minimum yield strength of 35,000 PSI. Pickets shall be extruded aluminum manufactured from 6063-T5 alloy (or an equivalent performing alloy registered and recognized in the Aluminum Standards and Data book produced by the Aluminum Association) with a minimum ultimate strength of 36,000 PSI and a minimum yield strength of 32,000 PSI.

B. Fasteners: All fasteners shall be stainless steel with a zinc dichromate coating for enhanced corrosion resistance. Phillips head screws shall be used to attach the pickets to the rails while self-drilling, self-tapping (Phillips) head screws shall be used to connect the rails to the posts. All screw heads shall be painted to match the finish of the fence.

C. Accessories: All castings used for post caps, finials, scrolls, circles, rail/base attachments and latches shall be made form either zinc or aluminum. Only stainless steel fasteners may be used with these accessories. All accessories will be painted to match to match the fence.

Finish:
A. Pretreatment: Before the finish is applied, a five-stage Pretreatment must be applied to assure maximum adhesion and corrosion resistance;

Stage 1: High alkaline cleaner to prepare the surface
Stage 2: Water rinse
Stage 3: Combination of chromic phosphoric and hydrofluoric acids that produce the chrome-phosphate conversion coating for maximum adhesion and corrosion
Stage 4: Water rinse
Stage 5: Water rinse

B. Coating: After the Pretreatment, the metal is dried and the paint is applied. The fence system shall have an electrostatically applied baked-on acrylic finish that meets or exceeds industry standard tests.

C. Tests
1) AAMA 603 - covers test procedures for pigmented organic coatings on extruded aluminum.

2) AAMA 605 - covers high performance organic coatings on architectural extrusions and panels.

3) ASTM D2247 - humidity resistance of 1,000 hours.

4) ASTM B117 - salt spray resistance of 1,000 hours.

5) Accelerated weathering for 500 hours under Method 6152 of Federal Test Method 141 shall show no adhesion loss, with only slight fading, chalking and water staining.

6) Outdoor weathering shall show no adhesion loss, checking or crazing, with only slight fade and chalk when exposed for one year in Florida facing south at a 45 degree angle.

7) Minimum hardness of 2H using ASTM D3363

Construction:
A.Horizontal rails: Rails shall be 1" square “U” channels for Residential, 1.5" horizontally x 1.125 vertically for Aero grade or
1 - 5/8" square “U” channel for Commercial grade. Pickets shall pass through holes punched in the top of the rail. The rail shall have a top wall thickness of .055" for Residential grade, .060" for Aero or .070" (Commercial ) for added vertical load strength. The number of rails will vary according to grade, height and style.

B. Pickets: Pickets shall be fastened to the rails using stainless steel screws painted to match the color of the fence. Screws shall be used on only one side of the rail, leaving the other side with a clean appearance. Pickets shall be 5/8" square with a .050" wall thickness for Residential, 5/8" x 1" with a .050" wall thickness for Aero, with 1" square with a .065" wall thickness for Commercial. Welding the pickets to the rails will not allow the fence to rake and is unacceptable.

C. Posts: Posts shall be 2" square with a .060" wall thickness for the Residential , 2.5" x 2.5" with a .060" wall thickness at the sides and a 0.1" wall thickness around the corners for Aero, or 2-1/2" square with a .075" wall thickness for Commercial. Gate posts for Residential shall be 2" square with a .125" wall thickness. Gate posts for Aero shall be 2.5" x 2.5" with a .060" wall thickness at the sides and a 0.1" wall thickness around the corners. Commercial gate posts shall be 4" square with a .125" wall thickness or 6" square with a .188" wall thickness. A gate requires a gate post on both sides. A cast aluminum post cap comes standard with all posts.

D. Gates: Swing gates and cantilever gates shall be fabricated according to the manufacturer's standard methods. Walk gates shall be self-closing and self-latching in all residential applications and when specified in commercial applications.

E. Strength: Assembled sections must be able to support a minimum of 300 pounds (Residential and Aero) of vertical load at the midpoint of any horizontal rail without permanent deformation, while Commercial grade must be able to withstand a minimum of 1,000 pounds without permanent deformation. Residential strength is available in heights of (3, 3-1/2, 4, 4-1/2, 5 and 6) feet. Aero is available in heights of (4, 4-1/2, 5, 6) feet. Commercial strength is available in heights of (4, 5, 6, and 8) feet.