Part 2 Products
2.01 Manufacturer:
The fencing system shall be (Residential,
or Commercial) strength Aluminum Ornamental Fence as manufactured
by Delgard Premier Aluminum Fencing, 8600 River Road, Delair,
NJ 08110. The fence shall be Delgard's style (A,B,C,D,E,F &
G) in residential strength or (M,T,P,L,S or W) in commercial strength.
The color of the fence system shall be (black, white, bronze or
hunter green).
2.02 Materials:
A. Aluminum Extrusions: The horizontal rails
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. Pickets and posts shall be extruded
aluminum manufactured from 6061-T6 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 22,000 psi and a minimum yield strength of
16,000 psi.
B. Fasteners: All fasteners shall be stainless
steel with 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, and latches shall be made from either
zinc or aluminum. Only stainless steel fasteners may be used with
these accessories.
2.03 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 resistance.
Stage 4: Water rinse
Stage 5: Water rinse
B. Coatings! After the Pretreatment, the metal
is dried and the paint is then applied. The fence system shall
have an electrostatically applied baked on flexible 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 8117 (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
2.04 Construction:
A. Horizontal rails: Rails shall be 1"
square channel for residential grades or 1-5/8" square 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" and side wall thickness of .080" (residential)
or .070" (commercial) top wall thickness and .100" side
wall (commercial). The number of rails will vary according to
grade, height and
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,
and 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 residential 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,
while commercial gate posts shall be either a 6" square with
a .188" wall thickness or a 4" square with a .125"
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, Rolling gates and cantilever
gates shall be fabricated according to the manufacturer's standard
methods. Walk gates shall be self-closing and self-latching.
E. Strength: Assembled sections must be able
to support a minimum of 300 pounds (residential) 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 36", 42", 48", 60"
and 72". Commercial strength is available in heights of 48",
60", 72", 84" and 96".
2.05 Warranty:
The entire fence system shall have a limited
lifetime warranty against defects in workmanship and material
while the finish must also carry a limited lifetime warranty against
cracking, chipping or peering.
Part 3 Execution:
3.01 Installation:
All material must be checked upon receipt at the job site prior
to installation to check for any damage that may have occurred
during transport. The fence system must be stored in a safe and
dry environment so as to protect it from any potential damage.
This aluminum Ornamental Fence system must be installed in accordance
with manufacturer's standard procedures.
