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ENGINEERS
July 30, 2021
Ironridge Inc
28357Industrial Boulevard
Hayward, CA 94545
TEL: 800-227-9523
Attn.: Engineering Department
Re: Engineering Certification for the Ironridge — Lynx Standing Seam Roof Clamp
Ironridge — Lynx Standing Seam Roof Clamp
The Ironridge Lynx is an extruded aluminum clamp intended to secure PV modules to existing standing seam roofs.
PZSE, Inc. —Structural Engineers has reviewed the Ironridge - Lynx and specifically the Martin Testing Laboratories
—Standing Seam PV Mounttests (MJO: 3888-01) for Uplift and Lateral strength. This letter certifies the allowable
capacities for Ironridge - Lynx and all information, data and analysis within follows the structural requirements of
the following Reference Documents:
1. Minimum Design Loads for Buildings and other Structures, ASCE/SEI 7-10/7-16
2. 2015/2018International Building Code, by International Code Council, Inc
3. 2019 California Building Code, by the California Building Standards Commission
4. AC 428, Acceptance criteria for modular framing systems used to support Photovoltaic (PV) Panels.
Standing Seam Roof Profiles & Limitations
The Ironridge - Lynx may be attached to any standing seam roof ("Folding" Styles Profile, "Snapping" Style Profiles,
etc.) where the vertical seam height is at least 1.0" and the horizontal seam width is a maximum of 0.5".
"Folding" Styles Profiles:
y;' MAX Z' MAX
��— C
"Snapping" Style Profiles:
%z.' MAX z" MAX
Z ZFZJL Z
1478 Stone Point Drive, Suite 190, Roseville, CA 95661
1 of 3
T 916.961.3960 P 916.961.3965 W www.pzse.com
Experience I Integrity I Empowermont
The Ultimate Load Values based on the Martin Testing Laboratories Uplift and Lateral tests and adjusted per the
Reference Documents listed above are as follows:
Table 1: Ironridge - Lynx Ultimate and Allowable Values for uplift, lateral -normal to the seam and lateral -parallel to
the seam
Ironridge Lynx
Ultimate Values
Allowable Values',2
Lateral
Lateral
Lateral -
Normal
Lateral-
Parallel
Standing Seam Profile
GA.
Uplift Z+, Ibs
to the
Parallel
Uplift Z+, Ibs
Normal to
to the
Thickness
to the
the seam
sm
e m
seam X
Y+/-, Ibs
X
a
+ / ms
+/-,Ibs
Ibs
22
1500
300
600
750
120
240
"Folding" Style
24
1500
200
600
750
80
240
26
1000
200
600
Soo
80
240
24
862
500
825
431
200
330
"Snapping" Style
26
862
350
425
431
140
170
Other'
24
300
100
80
150
40
32
1. The Allowable Values are applicable to the PV system with a Module height not exceeding 6" from the roof
surface.
2. The Allowable Values utilize the Factor of Safeties listed in Table 2. It is the responsibility of the designer to
employ a factor of safety appropriate for the project.
3. Standing seam roof profiles not shown that meet the dimensions limitations may use the ultimate load values
for'Other'.
Table 2: Manufacturer's Recommended Minimum Factor of Safety
Manufacturer's
Uplift
Lateral —Normal to seam
Lateral — Parallel to seam
Recommended Minimum
Factor of Safety, 0
2.0
2.5
2.5
Failure Modes
Table 3: Summary of Failure Modes
Standing Seam Profile:
Uplift
Lateral - Normal to Seam
Lateral - Parallel to Seam
"Folding" Style
Tearing/yielding of the
Breakage of a clamp
Tearing/yielding of the
seam
component
seam
"Snapping" Style
Tearing/yielding of the
Breakage of a clamp
Tearing/yielding of the
seam
component
seam
1478 Stone Point Drive, Suite 190, Roseville, CA 95661
T 916.961.3960 F 916,961.3965 W www.pzse.com 2 of 3
Experience I Integrity I Empowerment
Designer Responsibility .
The Ironridge - Lynx standing seam roof clamp is intended to be used under the responsible charge of a registered
design professional where required by the authority having jurisdiction. In all cases, the Ultimate Values shall be
reduced by an appropriate Factor of Safety under the direction of a design professional with sufficient structural
engineering knowledge and experience to be able to:
Evaluate whether the Ironridge Lynx is applicable to the project, based on the characteristics of the
project, and
Understand and determine the appropriate environmental loading conditions.
The user or design professional in responsible charge assumes full design responsibility. Refer to the
Manufacturer's Installation manual for more information.
The capacity of the building structure to support the loads imposed on the building by the Ironridge Lynx including
the fasteners, attachment to underlying structure, and the capacity of the underlying members are outside the
scope of this certification. The capacity of the building is outside the scope of our review.
If you have any questions on the above, do not hesitate to call.
Prepared By:
PZSE,Inc—Structural Engineers
Rosevil Ie,CA
1478 Stone Point Drive, Suite 190, Roseville, CA 95661
1 916.963.3960 F 916.961.3965 W w w.pzse.com 3 of 3
Experience I Integrity I Empowerment
1=1/2" Snap Lock
Engineered Panel Cli
Application
Standing seam panel clips used for attachment of snap lock
type panels wherein mechanical seaming is not required
Features and Benefits
• Manufactured from high quality, corrosion resistant steel
meeting strict mechanical property requirements
• Tightly controlled manufacturing tolerances for a secure and
functional fit every time
• Allows unlimited thermal movement. Always follow the
standing seam panel manufacturer's details and instructions
on proper use, location and performance values as well as
properly fixing their respective roof panels to the structure to
prevent uncontrolled sliding
Product Selection
Material No. I
Item
Description
I Carton Wt. (ibs.1
I Carton Qty.
1023821 I
1-1/2" Snap lock clip
18 ga. (1.2 mm) 6-90 Galvanized
138
250
1319660
I 1-1/2" Snap lock clip
18 ga. (1.2 mm) 304SS
142
1260
(3.05)
0.12V (e.ee)
0.3to-
(38.35)
(3.81) (3.81)
0.15- 0.15-
Installation and Application Considerations
• Compatible with:
• Quadro 1-1/2" Snap
CAD-1023821-A'
Specifications
Height:
Width:
Holes:
1.51" (38.35 mm)
3.50° (88.90 mm)
2-hole
• Refer to SFS standing seam fastener offering for panel clip
attachment options
• Always consult with panel manufacturer or design engineer
to ensure proper clip recommendations
us Canada Metric values are approximate conversions.
T 8002344633 T 866 847 5400 All information is non-bindingand without guarantee. Before using the products, all specifications andcalculations
must be chocked by a suitably qualified person and local regulations must be observed. This document is subject
us.sfs.com ca.sfs.com torevision. We reserve the right to make technical changes.(0912021, V1.01)
I
#10 Type A Pancake
SSR Panel Clip to Wood Fastener
Features and Benefits
• Pancake head low profile fits under most panel profiles
• Type A drill point for fast installation
• #2 square drive provides driving stability
• Zinc plated
Product Selection
Application
Standing seam panel clip attachment to wood substrate
Material No.
Fastener Length
Thread Length*
Description
Carton
Wt. Obs.)
Carton
Qty.
(in)
(mm)
1545869
1"
25
Full
CSTA-#10x1-PC-SQ2
36
5,000
1545862
1-1/2"
38
Full
CSTA-#10xl-1/2-PC-SQ2
25
2,500
1545882
2"
51
Full
CSTA-#10x2-PC-SO2
28
2,000
Plain product bagged 250 pieces, unless otherwise noted.
*Note -Thread length measured from tip of the point to top of the threads.
'o
I
0
N
u$ Canada Metric values are approximate conversions.
T 800 234 4533 T 866 847 5400 Allinformation is non -binding and without guarantee. Before using the products, all specifications and calculations 16
LL
must be checked by a suitably qualified person antl local regulations must be observed. This document is subject w
us.sfs.com ca.sfs.com to revision. We reserve the right to make technical changes. (08/202 1, Vi.g 1) 0
#10 Type A Pancake
SSR Panel Clip to Wood Fastener
(11.0)
0.435
42 Square Drive 0,074"
(4.88)
0.191"
ajar Bland.
45 Sharp
Point
CSTA-#10xL-PC-SQ2-ReviR
Product Specifications
Drill Point:
Type
Diameter: #10 (4.83mm)
Thread Major Dia:
0.191" (4.85 mm)
Threads Per Inch: 12
Thread Minor Dia:
0.130" (3.3mm)
Head Style: Pancake
Drive: #2 square
Performance Data'•2
Material Strength
Pull Out Strength Wood: SPF
Tensile
1825 Ibf / 8118 N
ii (25.4 mm) penetration
544 Ibf / 2420 N
Shear
1535 Ibf / 6828 N
1-1/2" (38.1 mm) penetration
995 Ibf / 4426 N
Torsional
60 Ibf-in / 6.8 N-m
t Pull out strength values may vary from tested loads depending upon specific wood density variations
2 PLK 12403
Installation and Application Considerations
Tools: 0-2500 rpm screw gun equipped with depth sensing
nose piece.
Use of impact guns or hammer drills is not
recommended.
Special care needs to be taken when installing #10 Type A
Pancake clip fasteners into wood substrate less than 1"in
thickness. Stripping or partially stripping the fastener out
during installation compromises the clamp load and can
affect the performance of the fastener.
us Canada Metric values are approximate conversions.
T 800 234 4533 T 866 847 5400 All information is non -binding and without guarantee. Before using the products, all specifications and calculations LL
must be checked by a suitably qualified person and local regulations most be observed. This document is subject m
us.SfS.com ca.sfs.com to revision. We reserve the right to make technical changes.(08/2021. V1.01) O