ISOSIDE
- Fixed to the side of the rib — roof covering is not punctured
- Fully sealed with pre-applied EPDM tape
- Flexible configuration with 4 different ISOBEAM heights (30/45/60/85 mm)
- Full-length profile option — 12-year system warranty
What is ISOSIDE?
ISOSIDE is an economical and robust mounting system developed for solar panel installation on trapezoidal and sandwich-clad industrial roofs. The core of the system, the XSide bracket, is screwed onto the side of the rib; this way the roof covering is not punctured and the risk of leaks is eliminated.
Thanks to the pre-drilled holes on the XSide brackets, no burrs are formed during installation, and there is no risk of corrosion. The pre-applied EPDM seal on the back of the bracket creates an additional water barrier between the XSide and the roof covering. Permanent sealing is ensured with sealed pointed screws or watertight rivets.
With four different ISOBEAM profile heights (30, 45, 60, 85 mm), ISOSIDE adapts to any roof configuration and supports both horizontal and vertical panel placement. It is an ideal, fast, and reliable solution for industrial facilities seeking to maximize energy production.
Technical Data
| Area of Use | Trapezoidal and sandwich-type pitched roofs |
| Panel Size (L) | 1,500 - 2,384 mm |
| Panel Size (W) | 990 - 1,330 mm |
| Panel Size (H) | 30 - 45 mm |
| Profile Length Options | 1,050 - 6,050 mm |
| Profile Height Options | 30 / 45 / 60 / 85 mm |
| Fixing | Sealed pointed screw / Waterproof rivet + XSide adapter |
| Profile / Rail | Aluminum 6063-T66 & 6005-T6 |
| Clamp | Aluminum 6063-T66 |
| Gasket | EPDM Rubber |
| Fasteners | Stainless Steel A2-70 & Bimetal |
| Layout | Horizontal and Vertical |
System Components
Panel carrier main rail profile (AL 6063-T66). 30/45/60/85 mm height options. It is placed in the channel of the XSide adapter and secured with Allen screws.
A connector for joining two ISOBEAM profiles end-to-end. It is inserted into the profile and secured with a self-tapping screw.
It provides protection and an aesthetic appearance by covering the exposed end of the profile.
Universal end clamp for the exposed edges of panels. Compatible with all PV modules with a 30-45 mm frame.
Universal center clamp for edges between two panels. Compatible with all ISOTEC systems.
ETA certified screw with hardened tip and gasket. It does not create burrs during screwing and provides a leak-proof seal by securing the XSide adapter to the roof.
Special rivet with EPDM gasket. An alternative fastening element with guaranteed leak-proof properties.
Easy Assembly
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1Marking and Placement According to the panel layout plan, the rib sides where the XSide brackets will be mounted are determined and marked.
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2XSide Fixing XSide brackets are secured to the roof with sealed pointed screws or rivets through the pre-drilled holes on the sides of the rib. Make sure the EPDM seals are compressed.
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3ISOBEAM Profile Assembly ISOBEAM profiles are placed into the channel of the XSide adapter, and the profile is secured by tightening the Allen screw on the adapter.
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4Profile Joining and Cap To ensure system continuity, profiles are joined end-to-end with ISOBEAM Connectors. ISOBEAM Caps are fitted to the ends.
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5Panel Assembly The EasyClamp End is placed in the profile channel at the beginning and end of the system. The solar panel is placed in the system and secured by tightening the EasyClamp End.
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6Intermediate Clamp and Completion EasyClamp Middle adapters are added and tightened between the two panels. The system is now complete.
Technical Documents
Download all technical documentation for the product.
Let's work together to determine the most suitable ISOSIDE configuration for your project.
BF Attachment · Bifacial Shading Advantage
There are 2 different approaches in the industry. Why is ISOTEC's BF attachment both economical and high-performing?
Why is shading important in bifacial panels?
Bifacial (double-sided) solar panels generate electricity from both their front and back surfaces. The back surface captures radiation reflected from the ground and coming from the side edges — typically %15-20 ek üretim provides.
The critical point: Any part (purlin, beam, cable) that blocks light falling on the back surface of the panel → on the back surface shadow lines creates, and the cells under the shadow lose output. The purlin-to-panel distance and the purlin's cross-sectional area are the determining parameters.
Therefore, to get the most out of a bifacial investment, the design of the mounting system is critical.
Two Design Philosophies in the Industry
There are two main approaches in the industry to reduce bifacial shadowing:
Inclined C-Beam Competitors
The beam runs parallel to the panel at the same angle. A single long C-profile provides grip along the panel.
- ✓ Minimal shade, high bifacial yield.
- ✗ Long steel beams, high material costs.
- ✗ In sloping structures, column heights vary.
- ✗ Tolerances are difficult, installation takes a long time
Vertical Beam + Horizontal Z-Purlin ISOTEC + BF
The beams are vertical (perpendicular to the ground, short). The Z-profile purlins extend horizontally. A BF 56 mm spacer is inserted between the purlin and the panel.
- ✓ Low steel content, quick assembly, economical.
- ✓ Bifacial yield with BF adapter vs. Inclined-C equal
- ✓ Standard column, easy supply.
- ✓ Slot design compatible with thermal expansion.
CAD comparison — purlin-panel distances
How does the BF adapter work?
The ISOTEC BF adapter is placed between the Z-purlin and the underside of the panel as a spacer + clamp system. By creating a 56 mm gap, it maximizes the irradiance reaching the back surface of the panel.
Design features
- Spacer body: EN AW-6005A T6 anodized aluminum (3.0 mm wall)
- Distance: The distance between the purlin's top surface and the panel's bottom surface is 56 mm.
- Slot design: Panel thermal expansion accommodated (±2 mm tolerance)
- Screw: Stainless steel A2 M8×40 hexagonal
Clamp variations
| Code | Type | Usage |
|---|---|---|
| BFC | Glass-to-glass edge | For frameless glass-to-glass panels at panel edges. |
| BFC-E | Center grip | Center panel, shared grip, frameless. |
| BFC-SET | Complete set | All components are pre-packaged, quick assembly. |
CAD details — ISOTEC system
Bifacial Radiance Simulation Results
Results were obtained using NREL's (US National Renewable Energy Laboratory) open-source Bifacial Radiance Python library. A scan-based irradiance calculation that accurately reflects field conditions is performed.
Heat map comparison
Warm (yellow) colors indicate high irradiation (1.77 MWh/m² annually), while cool (blue) colors indicate shaded areas. In both systems, the front surface of the panel (the upper yellow area) receives homogeneous irradiation; the difference appears on the panel's rear surface .
Numerical results
| System | Bifacial Gain | Shadow Line | Cost |
|---|---|---|---|
| Inclined-C (Competitor) | ~%18-20 | 1 big | 💰💰💰 High |
| ISOTEC + BF Adapter | %18 | 2 small | 💰 Economical |
| ISOTEC (without BF adapter) | ~%10-12 | 2 nearby shadows | 💰 Lowest |
The same bifacial production, shorter beam, less steel, faster assembly. The cost difference is significant at the field scale.
