Vertical Expansion Solved

LGSF Rooftop Extensions

Elevate your lifestyle without burdening your building. Add a luxury penthouse or an extra floor to your existing structure using ultra-lightweight, seismic-proof Light Gauge Steel Framing.

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Featherweight Engineering

Zero Foundation Stress

Ultra-Lightweight

LGSF structures weigh approximately 1/3rd of a traditional brick-and-mortar floor. This means you can safely add a floor even if your old concrete foundation wasn't originally designed for it.

Live-In Construction

No messy wet cement, no endless debris. Because LGSF is a 'dry build' process, your family or tenants living on the floor below will experience zero disruption during the installation.

Weather & Seismic Proof

The high-tensile steel frame is anchored directly into your existing RCC columns using heavy-duty chemical fasteners, making the new roof extension highly resistant to earthquakes and extreme winds.

The Penthouse Experience

Sky-High Luxury

A rooftop extension shouldn't look like an afterthought or a temporary shed. With LGSF, we create high-end architectural penthouses that blend seamlessly with your existing building's facade.

Our precision engineering allows for massive floor-to-ceiling glass windows, wide open terraces, and premium drywall finishes that make the interior feel like a 5-star suite.

Luxury Modern Penthouse Interior

3X

Lighter than Concrete
Engineering Marvel

Flawless Integration

Adding a floor to an existing structure requires precision. Our structural engineers conduct a thorough audit of your current roof and RCC columns. The LGSF chassis is then custom-designed in 3D to distribute the new load perfectly.

The steel frames are hoisted via crane and chemically anchored to the existing roof slab, ensuring a completely leak-proof and structurally integrated expansion.

LGSF Structural Framework

100%

Dry Construction
Smart & Sustainable

Eco-Friendly Construction

Traditional brick-and-mortar extensions create a lot of pollution, dust, and waste. Suraj Fabricator's LGSF technology is a 100% dry construction method that is environmentally friendly and highly sustainable.

Our premium lightweight steel is 100% recyclable, and because everything is pre-engineered off-site, we reduce the construction time by up to 70% compared to conventional methods.

Modern Sustainable LGSF Building

70%

Faster Construction
The Journey

How We Add Your New Floor

01

Structural Audit

We evaluate your existing roof's load-bearing capacity to ensure the extension is 100% safe.

02

Off-Site Fabrication

The entire steel skeleton is precision-rolled and cut at our factory, preventing site noise.

03

Crane Assembly

The lightweight panels are lifted onto your roof and bolted together in a matter of days.

04

Premium Fit-Outs

Insulation, drywalls, flooring, and paint are applied, delivering a ready-to-move space.

Engineering Data

Technical Specifications

Structural Frame
Cold Formed Light Gauge Steel (High Tensile 550 MPa)
Anchoring System
Heavy-duty Chemical Fasteners into existing RCC columns
Weight Ratio
Approx. 30-35 Kg/sq.ft (Compared to 150+ Kg for RCC)
Wall Insulation
Rockwool/Glasswool batts ensuring superior thermal comfort
Interior Finish
Fire-rated Gypsum boards with seamless putty and paint
Wind Resistance
Engineered to withstand cyclonic winds up to 150+ km/h

Explore Rooftop Extensions

Expand Your Space Safely

Don't risk your old building's foundation with heavy bricks. Contact our structural engineers to plan a safe, luxurious LGSF rooftop extension today.

Book a Structural Audit