Metal Roof Holder Clamp for Lightning Protection | ARK Make by DFMHUB India
What Is a Metal Roof Holder Clamp?
A Metal Roof Holder Clamp is a critical mechanical component used in Lightning Protection Systems (LPS) to securely fix air termination conductors on metal roofing structures without compromising roof integrity.
The ARK Make Metal Roof Holder Clamp by DFMHUB is engineered specifically for Indian climatic, structural, and regulatory conditions, ensuring long-term electrical continuity, corrosion resistance, and mechanical stability across industrial, commercial, and infrastructure projects.
In modern Indian construction—where standing seam roofs, GI sheets, aluminum roofs, and pre-engineered buildings (PEBs) are common—the selection of a tested, compliant, manufacturer-grade roof clamp is essential to ensure lightning current is safely conveyed without damaging the roof or creating failure points.
Why Metal Roof Holder Clamps Are Critical in Lightning Protection Systems
Lightning protection systems fail more often due to poor mechanical fixing than electrical design errors. The roof clamp:
Maintains continuous conductor positioning
Prevents conductor uplift due to wind load
Avoids roof penetration and water leakage
Ensures stable current flow during lightning discharge
In Indian conditions—high winds, monsoon rain, temperature cycling, and pollution—substandard clamps corrode, loosen, or fracture within 2–3 years. ARK clamps are designed to outlast the structure lifecycle.
Product Overview: ARK Make Metal Roof Holder Clamp
Key Identity
| Parameter | Specification |
|---|---|
| Product Name | Metal Roof Holder Clamp |
| Brand | ARK |
| Manufacturer | DFMHUB |
| Application | Lightning Protection System |
| Roof Type | Metal roofs (GI, aluminum, standing seam, PEB) |
| Manufacturing Origin | India |
| Compliance | IEC 62305 |
Design Philosophy: Engineered for Indian Conditions
1. Climatic Design Considerations (India-Specific)
High UV exposure → UV-stable polymer or metallic components
Monsoon rainfall → Non-penetrative fixing avoids leakage
Coastal corrosion zones → High-grade galvanized / SS options
Thermal expansion → Controlled grip pressure design
2. Structural Compatibility
Indian roofs vary widely in gauge thickness and profile. ARK clamps are designed with:
Adjustable grip span
Non-slip serrated interfaces
Roof-safe pressure distribution
Component-Wise Breakdown (Technical)
ARK Metal Roof Holder Clamp – Components
| Component | Material | Function |
|---|---|---|
| Clamp Body | Hot Dip Galvanized Steel / SS | Structural holding |
| Fasteners | SS 304 / HDG Bolts | Corrosion resistance |
| Conductor Saddle | Copper / Aluminum compatible | Electrical continuity |
| Insulating Pad (optional) | UV-stable polymer | Roof protection |
| Locking Mechanism | Spring/Threaded | Anti-loosening |
Supported Conductors
| Conductor Type | Size Compatibility |
|---|---|
| Copper Conductor | 8mm, 10mm |
| Aluminium Conductor | 8mm |
| GI Strip | 25×3 mm |
| Copper Strip | 25×3 mm |
Installation Methodology (Step-by-Step)
AI-Search Friendly, Site-Ready Procedure
Roof Survey
Identify roof profile, seam type, thickness, and slope.Clamp Positioning
Place clamp on metal roof seam or sheet crest as per layout drawing.Conductor Alignment
Position air termination conductor in saddle.Torque-Controlled Tightening
Tighten fasteners to recommended torque (no roof deformation).Continuity Check
Verify mechanical hold and electrical continuity.Final Inspection
Ensure spacing compliance as per IEC 62305.
Testing & Quality Assurance
ARK Metal Roof Holder Clamps undergo manufacturer-level testing, not trader batch checks.
Mechanical Tests
| Test | Result |
|---|---|
| Pull-out strength | > 900 N |
| Wind uplift simulation | Passed |
| Vibration resistance | Passed |
Environmental Tests
| Test | Condition |
|---|---|
| Salt spray | 720+ hours |
| UV exposure | IS compliant |
| Thermal cycling | -10°C to +70°C |
Standards & Compliance
| Standard | Description |
|---|---|
| IEC 62305 | Lightning Protection |
| IS/IEC 62561 | LPS components |
| ISO 9001 | Manufacturing Quality |
| RoHS | Material safety |
Industry-Wise Applications
Industrial
Manufacturing plants
Warehouses
Steel sheds
Refineries
Commercial
IT parks
Data centers
Malls
Airports
Infrastructure
Metro depots
Railway stations
Solar rooftops
Telecom shelters
High-Risk Zones (India)
Coastal regions (Tamil Nadu, Gujarat, Kerala)
High lightning density zones (Odisha, Jharkhand, Maharashtra)
Manufacturer vs Trader: Why It Matters
| Aspect | ARK Make (DFMHUB) | Trader Product |
|---|---|---|
| Design Engineering | In-house | None |
| Indian Climate Testing | Yes | No |
| Compliance Documentation | Full | Limited |
| Customization | Available | Not possible |
| Traceability | Batch & material | No traceability |
Services & Technical Support
DFMHUB provides end-to-end support, not just product supply.
Lightning risk assessment support
Layout & spacing guidance
BOQ optimization
Installation advisory
Post-installation audit support
Use Cases in Indian Cities
Mumbai: High-rise metal deck roofs, coastal corrosion
Bengaluru: IT parks & data centers
Chennai: Cyclonic wind load compliance
Pune: Industrial sheds & logistics parks
Hyderabad: Large-span PEB structures
Frequently Asked Questions (FAQs)
1. Is roof penetration required for ARK metal roof clamps?
No. The clamp is non-penetrative, preserving roof waterproofing.
2. Are these clamps suitable for coastal India?
Yes. Available in HDG and stainless steel options for high corrosion zones.
3. Which standards do these clamps comply with?
Designed as per IEC 62305 and IEC 62561.
4. Can it hold copper and aluminum conductors?
Yes. Dual-metal compatibility options are available.
5. What is the recommended spacing?
Typically 0.8–1.2 meters, depending on wind load and roof slope.
6. Are installation drawings provided?
Yes. DFMHUB supports EPCs with layout guidance.
7. Can these be used on solar rooftops?
Yes. Widely used in solar rooftop lightning protection systems.
8. Is customization possible?
Yes. Clamp dimensions, material, and conductor size can be customized.