Complete Roofing Solutions: Metal Roofing Systems for Industrial & Commercial Buildings

Why Your Roofing Choice Matters

The roof is the first line of defence for any building protecting people, equipment, inventory, and structural assets from rain, heat, wind, and corrosion. For industrial and commercial buildings, a poorly specified or badly installed roof translates directly into water ingress, energy losses, structural damage, and costly downtime. Choosing the right roofing system, material, and installer is therefore one of the most consequential decisions in any building project.

PrayagFab offers a comprehensive range of metal roofing solutions designed and installed by specialists. We supply, fabricate, and install roofing systems for new-build industrial structures, commercial buildings, warehouses, and rooftop replacements with a single-source approach that guarantees accountability from design through to commissioning.

Our Roofing Product Range

1. Colour-Coated Profiled Metal Sheets (PPGI / PPGL)

The most widely used roofing system for industrial and warehouse buildings. Pre-painted galvanised iron (PPGI) and PPGL (Galvalume) sheets offer excellent corrosion resistance, a wide choice of profile shapes, and competitive cost. Available in standard profiles including Trapezoidal, Corrugated, and Rib-roll in gauges from 0.35 mm to 0.80 mm.

• Coating options: Polyester, PVDF, HDP for aggressive industrial environments
• Spans of 1.2 m to 3.0 m between purlins
• Wide palette of RAL colours available

2. Standing Seam Metal Roofing

Standing seam systems are the premium choice for commercial and architectural applications demanding a clean, contemporary roof aesthetic with zero visible fasteners. The concealed-clip fixing mechanism allows thermal movement without stress, dramatically extending the roof's service life.

• Suitable for low-pitch roofs (as shallow as 1.5°)
• Panels in 0.5 mm – 0.7 mm Galvalume or aluminium
• Ideal for shopping centres, corporate offices, and airports

3. Insulated Sandwich Panel Roofing

Sandwich panels — two metal skins bonded to a rigid foam core (EPS, PUF, or mineral wool) — deliver excellent thermal insulation and sound attenuation. A preferred choice for cold-storage, food-processing, and clean-room environments where temperature and hygiene control are critical.

• Core thicknesses: 40 mm, 60 mm, 80 mm, 100 mm, 120 mm
• U-values as low as 0.20 W/m²K
• Fire-rated options available (mineral wool core, Class A1 rating)

4. Industrial Polycarbonate Skylights & Rooflights

Natural daylighting reduces artificial lighting energy consumption by up to 70% in warehouse and factory environments. PrayagFab supplies and installs multi-wall polycarbonate rooflights in ridge, barrel-vault, and dome formats — providing diffused daylight without direct solar gain or glare.

5. Ridge & Hip Systems, Gutters & Flashings

A roofing system is only as good as its weatherproofing details. We custom-fabricate all ridge cappings, hip sections, eave trims, box gutters, downpipes, and flashing pieces to match the primary roofing material ensuring a complete and leak-free installation.

Roofing for Retrofit & Re-Roofing Projects

PrayagFab also specialises in roof-over-roof systems (over-sheeting) that allow new metal roofing to be installed over existing deteriorated roofs without disrupting building operations. This approach avoids the cost and disruption of full roof demolition and removes the risk of weather exposure during the replacement phase.

Our Roofing Installation Process

1. Site Survey & Condition Assessment: We inspect existing structure, measure purlin centres, and assess drainage requirements.
2. System Design & Specification: We select the appropriate system based on span, loading (wind, snow, maintenance), thermal performance, and budget.
3. Supply & Fabrication: All sheets, flashings, and accessories are sourced or custom-fabricated and quality-checked before dispatch.
4. Installation: Our trained roofing teams install strictly per manufacturer specifications and IS 875 wind-load requirements.
5. Final Inspection & Warranty: Installation is inspected for lap sealing, fastener spacing, and flashing integrity before handover.

Choose PrayagFab for Roofing You Can Rely On

With hundreds of roofing projects completed across Rajasthan, Delhi NCR, and beyond, PrayagFab has earned a reputation for delivering weathertight roofs on time and without callbacks. Contact our roofing team today to arrange a site visit and free roofing quotation.