Roofing Agency

SOLAR PANEL MOUNTING STRUCTURE

Solar structure manufacturers in Chennai
Thirumala Roofings & Structurals

Solar Structure Manufacturers
in Chennai

Thirumala Roofings & Structurals are solar structure manufacturers in Chennai fabricating and installing steel mounting frames for rooftop, ground mount and carport solar installations. We build the steel that carries your panels, working alongside the EPC contractors handling modules, inverters and electrical. 13+ years of experience and 386+ completed projects stand behind every frame our solar structure manufacturers in Chennai deliver.

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Solar Structure Manufacturers in Chennai:
Talk to Our Team

Planning a solar installation? Our team works through module layout, tilt angle, wind loading, foundation type and corrosion specification before anything gets quoted. As solar structure manufacturers in Chennai we fabricate in house and install with our own team. Straight answers about what we do and what we don't.

OfficeNo.81, Kundrathur Main Road, Porur, Chennai – 600 116
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The Basics

What Solar Structure Manufacturers
in Chennai Actually Build

A solar panel mounting structure is the steel framework that holds photovoltaic modules in position, sets their tilt and orientation, and transfers wind and dead loads into the roof or ground beneath.

It sounds like the simple part of a solar installation. It isn't. The modules have a twenty five year design life, and the structure has to last at least that long while carrying uplift forces that routinely exceed the weight of the panels themselves.

Most solar failures in India are not panel failures. They are structure failures. Corroded members, loosened fixings, foundations that moved, or frames designed for the wrong wind zone. Getting the solar panel installation structure right at the outset costs a fraction of correcting it once an array is live.

That's why our work as solar structure manufacturers in Chennai starts with the loads rather than the layout.

Structure Types

Types of Structure We Fabricate

Each type suits a different site, and the right choice follows the building and the ground rather than the price list. Our solar structure manufacturers in Chennai build all of them.

Rooftop, Penetrating

Fixed directly into the roof structure with sealed penetrations. Suits metal sheeted industrial roofs where purlins can take the load. The most common solar panel mounting structure on factory and warehouse buildings.

Rooftop, Ballasted

Held by weight rather than fixings, with no roof penetration. Suits RCC terraces and roofs where penetration is not acceptable. Needs the slab to carry the additional ballast weight.

Ground Mount

Fixed to concrete foundations or driven piles on open land. Used for larger arrays where roof area is insufficient. Gives full control over tilt and orientation, which improves generation compared with a fixed roof pitch.

Carport

Elevated framework over parking areas, generating power while providing shade and weather protection. Earns twice from land already committed to parking, which is why industrial campuses and commercial premises use them.

Elevated Mounting

Raised above a roof or over existing use, preserving the space underneath.

Tracking Frames

Structures that follow the sun through the day. Higher generation, more moving parts, more maintenance.

Design Decisions

What Decides a Solar Panel
Mounting Structure Design

If you take one section from this page, take this one. These are the decisions that separate a solar panel installation structure that lasts from one that becomes a liability.

Wind uplift. The single biggest factor and the most commonly underestimated. A tilted panel array is an aerofoil. Wind lifts it rather than pushing it down, and uplift forces frequently exceed the dead weight of the entire installation. Design follows IS 875 Part 3 with site specific wind speed, which affects member sizing, bracing, fixing type and foundation design throughout. Our solar structure manufacturers in Chennai calculate this rather than estimating it.

Corrosion protection. Twenty five years outdoors is a long time. Hot dip galvanising is the baseline for any serious solar panel mounting structure, with coating thickness set by exposure. Chennai's coastal air makes this more critical than inland sites, particularly towards Manali, Ennore and the ECR belt. The fasteners matter as much as the members.

Tilt angle. Set by latitude and how you want generation distributed across the year. It also affects wind loading, so structural and generation requirements have to be resolved together rather than separately.

Roof capacity. For rooftop work, the existing purlins and frame have to carry the additional load. Many older industrial roofs cannot without strengthening. Our solar structure manufacturers in Chennai assess this before committing to any design.

Penetration and waterproofing. Every fixing through a roof is a potential leak. Sealing detail, flashing and fixing type decide whether the roof still performs in five years.

Foundations for ground mount. Soil type dictates whether concrete footings, driven piles or screw piles suit the site. The wrong foundation moves, and a moved array loses alignment and generation.

Module layout and access. Row spacing to avoid inter row shading, and walkways for cleaning and maintenance. A solar panel installation structure that cannot be safely cleaned will underperform within a year.

Steel vs Aluminium

Why Steel for a Solar Panel
Installation Structure

The comparison with aluminium comes up regularly, so here it is plainly.

Aluminium is lighter and corrosion resistant, which suits smaller residential arrays. For industrial scale installations, galvanised steel carries more load per rupee, handles wind uplift more predictably, and costs considerably less across a large array. That's why our solar structure manufacturers in Chennai build in steel as standard.

Steel also allows longer spans between supports, which means fewer penetrations on a roof and fewer foundations on the ground. On a carport that matters even more, since parking bays need clear space beneath.

A steel solar panel mounting structure can also be modified. Arrays get extended, modules get replaced with different dimensions, and layouts change. A bolted steel frame accommodates that. Welded or proprietary systems often do not.

Where weight is the binding constraint, aluminium may serve better. We'll say so at the site visit rather than after.

Scope of Work

Our Scope as Solar Structure
Manufacturers in Chennai

We build the structure. Panels, inverters, wiring, net metering and commissioning are handled by your solar EPC. Being clear about that avoids confusion, and we work alongside EPC contractors on most projects.

Structural design to IS codes with site specific wind loading
Assessment of existing roof structure and load capacity
Roof strengthening where required
Complete solar panel mounting structure fabrication at our own facility
Hot dip galvanising and corrosion protection
Ground mount foundations and framing
Carport design and installation
Rooftop penetrating and ballasted systems
Sealing, flashing and waterproofing at every penetration
Walkways, access platforms and safety railings
Cable tray supports and inverter mounting frames
Installation by our own team
How We Work

How Our Solar Structure
Manufacturers in Chennai Work

01

Site Assessment

Roof condition, purlin spacing, load capacity, orientation, shading and available area. For ground mount, soil conditions and levels. Every solar panel mounting structure starts here.

02

Coordination With Your EPC

Module dimensions, string layout, row spacing and inverter positions get agreed before the structure is designed.

03

Design and Engineering

Structural analysis with wind loading calculated for the site. Drawings you can take to any consultant or authority.

04

Fabrication

Members cut, drilled and welded at our own facility, with dimensional checks before galvanising.

05

Galvanising and Coating

Hot dip galvanising to the specified thickness, set by your site's distance from the coast.

06

Installation

Erection by our own team, with sealing and waterproofing handled properly at every penetration.

07

Handover

Inspection against drawings, then handover with maintenance guidance.

Why Choose Us

Why EPCs and Owners Choose Our
Solar Structure Manufacturers in Chennai

13+
Years Experience
386+
Projects Completed
100%
In-House Fabrication

We Fabricate, We Don't Just Supply

Every member is cut, drilled, welded and galvanised through our own process. Many suppliers buy in and assemble on site, and that's where accuracy and coating quality slip.

We Check the Roof Before We Design

Many older industrial roofs cannot carry an array without strengthening. We establish that first rather than discovering it during installation.

Uplift Calculated, Not Estimated

A panel array lifts. Member sizing, bracing and fixings all follow IS 875 Part 3 for your specific site, which is what keeps a solar panel installation structure in place through a cyclone season.

Coating Specified for the Coast

Chennai's salt exposure varies sharply across the city. Our solar structure manufacturers in Chennai set galvanising thickness by location rather than applying one standard everywhere.

We Work Cleanly Alongside EPCs

We build the structure and coordinate with whoever handles the electrical scope. No overlap, no gaps.

13+ Years, 386+ Projects

Across south India, in industrial, commercial and institutional steelwork.

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FAQ

Frequently Asked Questions

The steel framework that holds photovoltaic modules in position, sets tilt and orientation, and transfers wind and dead loads into the roof or ground. It carries the array for its full twenty five year design life.
No. We build the solar panel mounting structure and work alongside your solar EPC, who handles modules, inverters, wiring and commissioning. We'd rather be clear about scope than overclaim.
Sometimes yes, sometimes it needs strengthening. Purlin spacing, sheet gauge and frame capacity all matter, and many older industrial roofs were never designed for the additional load. We assess it during the site visit before quoting.
Rooftop uses your existing building and needs no land, but tilt is constrained and the roof must carry the load. Ground mount needs open land but gives full control over tilt and orientation, which improves generation.
Not if it's galvanised properly. Hot dip galvanising is the baseline, with coating thickness set by distance from the coast. Sites towards Manali, Ennore and the ECR belt need considerably more than inland ones. Where structures corrode early, it's almost always because a light coating or the wrong fasteners were used.
Sealing detail, flashing and fixing selection. Every penetration is a potential leak, so it gets detailed properly during design rather than improvised on site. It's the part of a solar panel installation structure that causes most problems later.
It depends on latitude and how you want generation distributed across the year. Tilt also affects wind loading, so we resolve the structural and generation requirements together rather than treating them separately.
Yes, if it's planned for. A bolted steel solar panel mounting structure can be extended and modules replaced with different dimensions. Design with expansion in mind and later work is straightforward.
Regularly. Most solar EPCs are electrical businesses rather than fabricators, so the structure gets subcontracted. Our solar structure manufacturers in Chennai are used to coordinating on module layout, string design and inverter positions.
Chennai and the surrounding industrial belt, and across Tamil Nadu including Coimbatore, Hosur, Madurai, Trichy and Salem. We also work in Andhra Pradesh, Telangana, Karnataka and Kerala.
At least as long as the panels, so twenty five years or more. Galvanising thickness and fastener selection are what decide it, along with correct wind design.
Ask whether they fabricate in house or buy in and assemble. Ask what wind speed they've designed to and what galvanising thickness they're quoting. Ask how they'll handle roof penetrations and waterproofing. And check whether the quote includes roof strengthening if your building needs it.

Still Have Questions?

Our expert team is ready to answer any specific questions about your array size, cost, timeline, design, or site requirements. We'll respond within 24 hours.

Get a Quote From Solar Structure
Manufacturers in Chennai

Looking for solar structure manufacturers in Chennai who design for the wind loads at your site and galvanise to last? Contact us for a site visit and a no obligation proposal.