Rooftop Mounting Systems
Rail, clamp and ballast systems for rooftop arrays.
Rooftop Mounting Systems
Vajra International · Image coming soon
What it is
Aluminium and GI rail systems with mid/end clamps, tin and tile hooks, and ballast frames for pitched and flat rooftop installations.
Applications
Materials
Finishes
Dimensional & Section Details
Engineering drawings for sizing, cross-sections and installation reference. Click any drawing to enlarge.
Buying rooftop mounting systems — answered
Practical answers for procurement, engineering and EPC teams — covering specification, standards, finish, lead time and export logistics.
Anodized aluminium 6063-T6 is the standard for rooftop rails — light, corrosion-free, easy to install. GI rails work for ballast frames where weight is a feature, not a bug. Rooftop projects with weight constraints (warehouses, factories with ageing roofs) always use aluminium.
Tin-sheet roofs use L-foot brackets with EPDM rubber gaskets and self-tapping screws — the gasket compresses against the corrugation peak and seals the screw penetration. For severe-weather sites we add a butyl tape under the bracket. The installation should follow the roof OEM's penetration spec.
Yes — pre-fabricated ballast trays with concrete weights are available for flat roofs where penetration is not allowed (waterproof membranes, leased buildings). Wind tunnel-tested layouts ensure the ballast weight is sufficient at the site's design wind speed.
A 1 MW rooftop project (≈2,500 modules) ships in 4–6 weeks. Smaller rooftops (200–500 kW) ship in 2–3 weeks. We hold rail and clamp stock to meet the C&I solar developer schedule which often turns on a 4–6 week order-to-installation cycle.
Mid-clamps grip between two modules; end-clamps grip the outside edge of the first and last module in a row. Each clamp must match the module frame height (typically 30, 35 or 40 mm). Specify module model and we'll send the right clamps.
Related lines
Manufacturing & Surface Treatment
All products are manufactured at Vajra's Howrah facility under ISO 9001:2015 quality management. In-house roll-forming, welding, galvanizing and testing — without sub-contractor dependency — ensures consistent dimensional accuracy and surface quality across export orders.
Precision Roll-Forming
CNC roll-forming lines capable of ±0.1 mm dimensional tolerance on MS, GI, SS, and aluminium sections.
Hot-Dip Galvanizing
In-house HDG plant conforming to ASTM A123 / IS 2629. Average coating: 85–140 µm. Pre-treatment: alkaline degreasing → pickling → fluxing.
Welding & Fabrication
MIG, TIG, SAW welding. Coded welders under ASME IX / IS 2825 qualification. Weld inspection by UT / DPT available.
Surface Treatment
Hot-dip galvanizing · Pre-galvanized GI · Powder coating (Tribo gun, 60–80 µm DFT) · Mill finish · Chromate passivation.
Available Material Grades
Surface Treatment Options
Manufacturing Tolerances
| Length tolerance | ±3 mm on standard lengths |
| Width tolerance | ±1 mm |
| Thickness tolerance | ±0.15 mm (IS 1079) |
| Straightness | ≤ 1 mm per 1 m |
| Galvanizing coat | 85 µm min (ASTM A123) |
| Squareness | ≤ 1 mm per 100 mm |
Global Supply & Export Documentation
Rooftop Mounting Systems is exported under a documented supply chain — from factory test certification through customs clearance to door delivery. All shipments are packed to sea-freight standards with full export documentation prepared in-house.
Incoterms Available
- FOB Kolkata
- CIF Port of Destination
- CFR
- EXW Howrah Works
- DDP (on request)
Export Documents
- Commercial Invoice & Packing List
- Bill of Lading / Airway Bill
- Certificate of Origin (CoO)
- Inspection Certificate
- Phytosanitary Certificate (where applicable)
- MSDS / Material Safety Data Sheet
- Test Reports & Mill Certificates
Packaging Standards
- Wooden crate — sea-freight grade
- ISPM-15 heat-treated pallets
- Steel-strapped bales for structural sections
- VCI poly wrapping for corrosion protection
- Moisture-absorbing desiccant sachets
Compliance & Standards
Manufactured and tested to:
ISO 9001:2015 quality management system. Third-party inspection available on request (SGS, Bureau Veritas, TÜV).
Lead time: Standard stock items ship within 7–10 working days after order confirmation. Custom fabricated quantities: 15–25 working days. Express production available — contact our export desk.
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View marketSectors That Specify This Product
This product line is specified by procurement and engineering teams across the following sectors. Each industry page lists the specific product requirements, typical standards, and export documentation relevant to that buyer profile.
Power & Energy
Utilities & IPPs
Construction
EPC & civil contractors
Oil & Gas
Refineries & terminals
Manufacturing
Heavy process industry
Application engineering support: Our technical sales team provides product selection, load calculation references, and specification assistance for EPC, PMC, and procurement teams. Available for onsite consultation in major project cities.
Download Technical Documentation
Technical Datasheet
PDF · Engineering specifications · Export-ready
Complete engineering datasheet for Rooftop Mounting Systems — dimensional data, material grades, tolerances, applicable standards, and export compliance information.
Free · No registration required · Solar Structures datasheet
Request a quote for rooftop mounting systems.
Send drawings, a BOQ, or a simple description. You'll get a structured quotation covering specification, finish, lead time and Incoterms — from the manufacturer, not a middleman.
- MTC · COO · inspection reports
- ±0.01 mm precision · in-house QA
- FOB · CIF · CFR to all major ports