SECTION 07 46 00
SIDING
(APEX Siding System)
PART 1 - GENERAL
1.01
SUMMARY
A. Related Documents:
1. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
B. This Section includes the following:
1. Furnish and install APEX siding and trim components where shown on drawings or as specified
herein.
C. Coordinate this section with interfacing and adjoining work for proper sequence of installation.
D. Related Sections:
1. Section 13 10 22, Steel Framing and Bracing
2. Section 06 10 00, Wood Framing and Bracing
3. Section 06 10 00, Sheathing
4. Section 07 20 10, Insulation
5. Section 07 25 00, Weather Barriers
1.02
REFERENCES
A. Definitions:
1. Ultrex: a continuous fiberglass reinforced thermoset pultrusion integrated with a
thermoplastic acrylic color and wear surface.
2. FRP: Fiberglass Reinforced Polymer
3. Pultrusion: is a continuous process or the resulting product of manufacturing of composite
materials with constant cross-section whereby glass fibers are pulled through a resin and into
a heated die, where the resin undergoes polymerization creating a high strength, low weight
FRP composite.
APEX® Siding System Specifications 07 46 00
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4. WMC: Water Management Clips are factory applied to the lap siding components and are
spaced every 16 inches. The WMC spaces the siding away from the house-wrap to create the
water management drainage and back ventilation plane.
5. Seam Flashing: Molded component centered behind the ends of two adjacent siding pieces
used for support, alignment, flashing water and maintaining the water management plane.
6. AWB (Air and Water Barrier) (Air/Water Barrier): Wall System layer(s) that limits the transfer
of liquid water and air through the system.
B. REFERENCE
1. International Code Council Evaluation Service AC92 (ICC ES AC92) Certification and American
Society for Testing and Materials (ASTM)
a. ASTM G155: Accelerated Weathering
b. AC92: Freeze Thaw
c. AC92 & ASTM C297: Bond Strength
d. AC92 & ASTM D1037: Flexural Strength
e. AC92 & ASTM B117: Salt Spray Resistance
f. AC92 & ASTM D2247: Water Resistance
g. ASTM E330: Structural Performance
h. ASTM D1037: Fastener Pull-through
i. AC92 & ASTM D1929: Self Ignition Temperature
j. ASTM E84: Surface Burning Characteristics
2.
AAMA 509-09, Voluntary Test and Classification Method for Drained and Back Ventilated Rain
Screen Wall Cladding Systems
3. AAMA 623-10, Voluntary Specification, Performance Requirements and Test Procedures for
Organic Coatings on Fiber Reinforced Thermoset Profiles
1.03
ACTION SUBMITTALS/INFORMATIONAL SUBMITTALS
A. Product Data: Installation instructions, repair and replacement instructions, care and maintenance
instructions, MSDS.
B. Samples: Submit samples illustrating surface texture and color.
1.04
CLOSEOUT SUBMITTALS
A.
1.05
Warranty Documentation: See manufacturer’s website (www.apexsiding.com) for warranty
information.
QUALITY ASSURANCE
A. Installer Qualification: New installers must be trained in the installation of the APEX siding system.
Experience with handling and installation of cladding systems is required.
B. An APEX representative will be available for instructional demonstration by appointment.
APEX® Siding System Specifications 07 46 00
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1.06
STORAGE AND HANDLING
A. Storage: Store siding boxes no more than five boxes high on a flat surface and protect packaging
from the elements. APEX is virtually unaffected by climate temperature, humidity and moisture
but should be kept clean.
B. Handling: Always lift siding and trim up and out of the fully open box, never slide across another
piece of siding or trim.
PART 2 - PRODUCTS
A. OWNER-SUPPLIED PRODUCTS
A. Acceptable Manufacturer: APEX Siding System, Located at 4401 15th St. NW, Fargo, ND 58108;
Toll Free 1-866-307-3148; E-mail: info@apexsiding.com; Web: www.apexsiding.com
B. Substitutions: Not permitted
C. Requests for substitutions will be considered in accordance with provisions of Section 01600.
D. Materials: Performance and physical characteristics for siding and trim materials made of Ultrex,
a patented combination of a continuous fiberglass reinforced thermoset pultrusion coated with a
thermoplastic acrylic cap-stock material.
Property
Tensile strength
Impact Strength
Flexural Strength
Flexural Modulus
Bond Strength
CTE – longitudinal direction
CTE – transverse direction
Thermal Conductivity (94°C)
Thermal Conductivity (-19°C)
Ignition Temperature
Heat Deflection
Burn Rate
Flame Spread
Mildew Resistance
Finish Hardness
Finish Fade Resistance
Finish Performance*
Corrosion Resistance (Salt Spray)
Test Method
ASTM D638
ASTM D5420
ASTM D1037
ASTM D790
ASTM C297
ASTM E831 (TMA)
ASTM E831 (TMA)
ASTM C177
ASTM C177
ASTM D1929
ASTM D648
ASTM D635
ASTM E84
ASTM G21
ASTM D3363
ASTM G155
AAMA 623-10
ASTM B117
Value
37,000-44,000 psi
MFE= 0.38J/ h=1.67 in.
11,000 psi
2.0-2.5x106 psi
≥ 10 psi
5.2 x 10-6 in/in/°F
21.0 x 10-6 in/in/°F
0.26 W/m-K
0.19 W/m-K
782°F
> 350°F
25 mm/min
FSI of 80
Rating of 0
2H minimum
ΔE<1.5 @3000 hours
Meets or exceeds
Passed 3000 hours
*APEX’s finish meets or exceeds all required laboratory test criteria for AAMA 624-10 and
AAMA 625-10, with the exception of Section 7.13 Weather Exposure, which is in progress.
E. System Performance - Water Management and Back Ventilation Rain Screen System
1. AAMA 509-09 System Classification Rating: V1/W1
2. Wind Load (ASTM E330):
APEX® Siding System Specifications 07 46 00
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Test Wall Configuration #1
2x4 SPF Stud grade on 16" O.C.; 7/16" OSB sheathing; siding fastened with 1-1/2" long 3/8" head 1/8" smooth shank galvanized
roof nails; staggered seam every third course.
7" APEX Ultrex Siding on 2 x 4 SPF Wood Stud
Results:
Positive
Test Panel
Negative
psf
kPa
psf
kPa
1
140.40
6.72
104.00
4.98
2
154.96
7.42
93.60
4.48
3
152.36
7.30
83.20
3.98
Average
149.24
7.15
93.60
4.48
Standard Deviation
7.77
0.37
10.40
0.50
Design Load (FOS=3)
49.75
2.38
31.20
1.49
Failure Mode:
Test Panel
Positive
Negative
1
top plate separated from all studs at
stud/plate connection
Fastener withdrawal at one center and one
corner stud at mid-height
2
Top plate separated from two studs at
stud/plate connection
Fastener withdrawal at one center and one
corner stud at mid-height
top plate separated from all studs at
stud/plate connection
Fastener withdrawal at one center and one
corner stud at mid-height
3
Test Wall Configuration #2
3-5/8" 18ga. metal studs & track; 5/8" APA Exposure 1 CDX; #8x1-5/8" screws at 16" O.C.; staggered seam every third course
7" APEX Ultrex Siding on 2 x 4 Steel Studs
Results:
Test Panel
Positive
Negative
psf
kPa
psf
kPa
1
117.52
5.63
134.68
6.45
2
113.88
5.45
148.72
7.12
3
123.24
5.90
155.48
7.44
Average
118.20
5.66
146.29
7.00
Standard Deviation
4.72
0.23
10.61
0.51
Design Load (FOS=3)
39.40
1.89
48.76
2.33
Failure Mode:
Test Panel
1,2 & 3
APEX® Siding System Specifications 07 46 00
Positive
Negative
No failure was observed in the siding itself.
Three adjacent studs buckled around midheight
No failure was observed in the siding itself.
One end stud and the adjacent stud buckled
around mid height at ultimate load.
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Test Wall Configuration #3
2x4 SPF Stud grade on 16" O.C.; 7/16" OSB sheathing; siding fastened with 1-1/2" long 3/8" head 1/8" smooth shank galvanized
roof nails; staggered seam every third course.
4" APEX Ultrex Siding on 2" x 4" SPF Wood Stud
Results:
Positive
Negative
Test Panel
psf
kPa
psf
kPa
1
121.68
5.83
119.08
5.70
2
160.16
7.67
140.40
6.72
3
140.40
6.72
151.84
7.27
Average
140.75
6.74
137.11
6.56
Standard Deviation
19.24
0.92
16.63
0.80
Design Load (FOS=3)
46.92
2.25
45.70
2.19
Failure Mode:
Test Panel
1
2
3
Positive
Negative
One center stud broke mid-height
Premature failure of OSB, sheathing
separated from one center and one corner
stud
Top plate separated from the studs at the
stud/plate connection
One corner stud broke at mid-height
Both center studs broke near mid-height
One center and one corner stud broke
F. Ultrex Siding Product:
1. 4” smooth lap siding (5.25” with interlock and nailing fin), 16 ft length, 0.32 lbs/ft
2. 4” woodgrain lap siding (5.25” with interlock and nailing fin), 16 ft length, 0.32 lbs/ft
3. 7” smooth lap siding (8.25” with interlock and nailing fin), 16 ft length, 0.48 lbs/ft
4. 7” woodgrain lap siding (8.25” with interlock and nailing fin), 16 ft length, 0.48 lbs/ft
G. Ultrex Trim and Starter Strip:
1. 3-½” outside corner post, 10 ft length, 0.90 lbs/ft
2. 3-½” receiver corner post , 10 ft length, 1.09 lbs/ft
3. 5-1/2” outside corner post, 10 ft length, 1.40 lbs/ft
4. Inside corner, 10 ft length, 0.20 lbs/ft
5. 45 degree outside corner post, 10 ft length, 0.59 lbs/ft
6. 45 degree inside corner post, 10 ft length, 0.32 lbs/ft
7. 3-1/2” casing, 16 ft length, 0.50 lbs/ft
8. Brickmould, 8.5 ft length, 0.36 lbs/ft
9. Edge trim, 16 ft length, 0.128 lbs/ft
10. Receiver trim, 16 ft length, 0.19 lbs/ft
11. Finish trim, 10 ft length, 0.15 lbs/ft
12. 1-1/2” starter strip, 10 ft length, 0.10 lbs/ft
13. 3-1/2” starter strip, 10 ft length, 0.20 lbs/ft
APEX® Siding System Specifications 07 46 00
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2.02
ACCESSORIES
A. APEX water management clips (WMC) are factory installed on all lap siding and starter strips.
B. APEX 4” seam flashing, 7” seam flashing, outside corner end cap, 3-1/2” casing end cap, 3-1/2”
casing corner key, 7” outside corner support, 7” outside corner cap, receiver corner end cap, 51/2” outside corner end cap, simple frieze/belly board corner cap, 45 degree outside corner end
cap, 45 degree inside corner post end cap and brick mould corner key. Alignment keys that work
with the 5-1/2” outside corner post, 3-½” outside corner post, 3-½” receiver corner post and the 3½” casing for end joining.
C. Fasteners: Corrosion resistant type, non-staining – minimum 1-3/4” nail with 3/8” head and 1/8”
smooth shank. Increase fastener length as needed to achieve 1” penetration into studs or solid
backing. Screws: #8, 1-1/2” corrosion resistant self-drilling screws should be used for metal
framing. Refer to applicable building codes for compliance.
D. Weather Resistive Barrier: Vapor barrier, air infiltration barrier or 15 lb. asphalt felt building
Paper. Refer to applicable building codes for compliance.
E. Sheet Flashings: ASTM B209: 0.032 inch (0.76 mil) thick aluminum. Refer to applicable building
codes for compliance.
2.03
FINISH
A. APEX siding and trim made with Ultrex: A patented combination of continuous fiber reinforced
thermoset pultrusion coated with a thermoplastic acrylic capstock material.
1. Diamond White
2. Herringbone
3. Clay
4. Earthtone
5. Earl Gray
6. Bronze
7. Wineberry
8. Mount Etna
9. Rock Garden
10. Classical Gold
B. Site touch up: For minor touch up, manufacturer’s proprietary color matched touch up paint pens
and spray paint shall be utilized. For more significant damage see manufacturer’s repair
instructions.
PART 3 – EXECUTION
3.01
EXAMINATION
A. Do not begin installation until substrates (AWB, sheathing, framing) have been properly prepared.
Correct any conditions detrimental to proper installation.
B. Do not install over inadequate structural framing. Do not install over buckled or wet materials. Do
not install if excessive moisture is present due to curing concrete on the interior.
APEX® Siding System Specifications 07 46 00
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C. Removal of any prior siding is highly recommended.
3.02
INSTALLATION
A. Apply all APEX siding system components in strict accordance with manufacturer’s installation
instructions and all pertinent building codes.
B. Read warranty and comply with all terms to maintain warranty coverage.
C. Flash all wall openings in accordance with all pertinent building codes and best practice methods.
D. Install trim, with trim caps, level and plumb.
E. Install starter strip level and fasten through water management clips (WMC) and a minimum of 1”
into studs or solid backing.
F. Install APEX siding and trim:
1. Install siding for natural watershed, WMC must be used on starter strip and all lap siding to
maintain the drainage and ventilation plane. Follow local building codes for minimum
clearance of adjacent grade. Apex has no limitation.
2. Align level and plumb. Locate cut siding edges and ends over studs. For visual quality, siding
to siding and siding to trim joints should abut.
3. Fasten siding as recommended by manufacturer’s instruction, through WMC and a minimum
of 1” into studs or solid backing.
4. Place manufacturer’s seam flashing behind all joints.
5. Use manufacturer supplied installation tool to distribute impact around WMC when fastening
through a soft substrate like foam.
G. When properly installed over a code compliant air and water barrier, APEX Siding System does not
require caulking at seams or end joints. If caulk is used, chose one that is paintable.
H. Maintain neat and clean appearance of the siding system.
3.03
SITE QUALITY CONTROL
A. Protect installed products until completion of the project.
B. Repair or replace damaged products.
C. Do not use harsh cleaning materials or methods that could damage the products. Refer to
manufacturer’s Care and Maintenance instructions.
END OF SECTION
APEX® Siding System Specifications 07 46 00
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