Mumbai high-rise facade with vertical fins at dusk
Service Profile · Fins

Shade the elevation. Keep the rhythm.

Vertical aluminium fins applied to a building elevation as a sun-shade and architectural rhythm element. Slim extruded blades bolted to the slab edge or curtain-wall mullion, projecting 200 to 600 mm. The west-facing afternoon stops at the facade — not at the curtain.

Send the elevation
Or call Suraj — +91 98703 08481
Alloy
6063-T6 alu
Blade
50×100 / 100×200
Projection
200–600 mm
Finish
Powder-coat / anodised
Run / piece
Up to 6 m
Finish life
20-yr
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Chapter 01 · The Problem

A west elevation that
nobody quite solved.

A Bandra sea-facing flat, 4 PM in April, west sun straight through the curtain wall. The AC runs flat-out, the sofa fades in a season, and the elevation the architect drew has been quietly defeated by the brief it never accounted for.

A fin does two jobs at once — climate control and elevation rhythm. The alloy is what lets it do both for twenty years.
i.

The concrete chajja

Heavy, dated, and the wrong language for a contemporary tower. Adds dead-load the structural drawing didn’t plan for. The elevation goes from architecture to apartment-block.

ii.

Mild-steel fins

Right idea, wrong material. Rusts at the chemical-anchor bracket, stains the slab in three years, and gives the cladding contractor a reason to argue with the painter every monsoon.

iii.

Or simply nothing

Black-out curtains, double-layer drapery, AC at 18°C from 2 PM. The elevation reads as glass; the inside reads as a darkened cave.

iv.

The fourth answer

Slim 6063-T6 aluminium blades, bolted to the slab edge or the mullion, projecting 200 to 600 mm. Vertical rhythm on the elevation, west sun cut at the facade.

Chapter 02 · How it works

Three parts.
One continuous rhythm.

01

The blade — extruded to spec

6063-T6 aluminium extrusion, custom blade profile drawn for the elevation. 50 × 100 mm for a quiet rhythm, 100 × 200 mm where the elevation can carry weight, fully bespoke profiles where the architect has drawn one. Up to 6 m per piece, joined invisibly on long runs.

02

The bracket — chemical-anchored to RCC

SS 304 brackets bolted to the slab edge with chemical anchors, or clipped onto the curtain-wall mullion where the facade allows. The bracket carries the wind-load; the blade carries the rhythm.

03

The isolation pad

EPDM pad between the SS bracket and the aluminium blade — prevents galvanic corrosion at the joint, which is the single failure point on every cheaper fin install. No metal-on-metal contact, no rust path.

—

No MS bracket.
No site welding.
No paint touch-ups in monsoon.

The parts of a fin install that fail in five years are simply not in this system.

Vertical aluminium fin facade detail
Blade detail · Slab-edge bracket
Chapter 03 · Material

What it’s made of.
Down to the isolation pad.

6063-T6 for the blade because that’s the alloy that holds a finish for twenty years. SS 304 wherever the bracket meets weather. EPDM where two metals would otherwise touch. Specified for Mumbai monsoon and Mumbai sun in equal measure.

Aluminium extrusion profile detail
Material 01

The blade — 6063-T6 aluminium.

Same alloy family as our slim window sections. Custom blade profile drawn to the architect’s elevation — 50 × 100 mm, 100 × 200 mm, or fully bespoke. Up to 6 m per piece, mitred and joined where the run is longer.

Stainless steel bracket and hardware detail
Material 02

The brackets — SS 304, chemical-anchored.

Stainless brackets bolted into the RCC slab edge with HILTI-grade chemical anchors. Sized to the wind-load on the floor — taller floors get heavier brackets. No MS, no site-welded plates, no part of the bracket that can rust into the slab.

Anodised aluminium close-up
Material 03

The finish — anodised or RAL coat.

Architectural anodising in silver, champagne, bronze or black for a 20-year finish life. Or polyester powder-coat to any RAL or NCS swatch when the elevation calls for a specific colour. Pre-treated and oven-cured at the supplier, never on site.

Chapter 04 · Where it’s installed

Real elevations.
Real west sun. Real towers.

West-facing residential elevations along the sea line — Bandra, Juhu, Worli, Walkeshwar. Boutique commercial facades in Lower Parel and BKC. Designer villa elevations in Khar and Pali Hill. Hotel and restaurant facades where the architect has drawn rhythm, not chajja.

Mumbai residential tower with vertical fin facade
Residential · Bandra sea-line

The most requested install.

Vertical 50 × 100 fins across the west elevation of a sea-facing flat. Bolted to the slab edge floor-to-floor, projecting 300 mm. The afternoon sun stops at the facade; the AC stops working overtime.

Commercial high-rise facade at dusk
Commercial · BKC

Boutique office facade

Curtain wall facade with vertical elements
Curtain wall · Lower Parel

Mullion-clipped 100×200

Contemporary villa facade detail
Designer villa · Pali Hill

Bespoke blade profile

Hotel facade with vertical elements
Hotel facade · Worli

Floor-to-floor rhythm

Restaurant facade with screen elements
Restaurant · Bandra

Street-level facade screen

Sea-facing high-rise facade
South Mumbai · Sea-facing

SS 316 brackets specified within 1 km of the coastline

Chapter 05 · Comparison

A direct read on the
seven decisions that matter.

Concrete chajja
MS fins
Aditi Aluminium Fins
Elevation language
Heavy, dated
Industrial
Slim, contemporary, bespoke
West-sun cut
Yes — but blocks view
Yes
Yes — and keeps sightline
Dead-load on the slab
Heavy — needs structural OK
Moderate
Light — bolt-on retrofit
Salt-air durability
Spalls in 10 yr
Rusts at bracket in 3 yr
20-year anodised finish
Finish options
Plaster + paint
Paint over rust
Anodised or any RAL
Bespoke blade profile
Limited
Limited
Drawn to the architect’s elevation
Retrofit on existing slab
Practically impossible
Possible, ages badly
Bolt-on, slab-edge anchors
Chapter 06 · Benefits

Rarely a single feature.
Always the combination.

Vertical or horizontal rhythm.

Vertical fins for the west elevation, horizontal louvres for the south — both built in the same 6063-T6 family, both finished to match. The architect picks the rhythm, the alloy stays consistent.

Cuts the afternoon sun.

A 300 mm projection on a vertical fin blocks direct west and south-west sun from 2 PM through dusk. The AC runs softer, the sofa stops fading, and the curtain wall is a curtain wall again.

Slim profile.

50 × 100 mm reads quietly on a residential elevation; 100 × 200 mm carries weight on a commercial facade. Custom profiles drawn for the architect when the elevation calls for one.

A 20-year finish.

Architectural anodising holds for 20 years in Mumbai weather. Polyester powder-coat to any RAL is good for 15. No site-painted MS dressed up to look like aluminium.

Anodised or any RAL.

Silver, champagne, bronze, black anodised for the architectural defaults. Powder-coat to any RAL or NCS swatch when the elevation needs a specific colour.

Retrofit to existing slabs.

No structural rework. We chemical-anchor SS 304 brackets to the slab edge — the existing tower stays, the elevation gains a fin grid in two weeks per face.

Integrates with the curtain wall.

Where the facade is a unitised curtain wall, the fin clips to the mullion rather than the slab. Same bracket family, same finish, same alloy as the rest of the facade.

Designer-spec bespoke blade.

When the architect has drawn a custom profile, we extrude to that drawing. Tapered, asymmetric, perforated — the alloy and the finish hold whatever the elevation needs.

Designer-direct.

Suraj reads the elevation. No franchise, no call-centre, no rep filtering technical questions. The relationship is the brand.

Chapter 07 · Common questions

The questions an architect
asks before the quote.

Yes. Send the elevation drawing with the blade section drawn at 1:5 and we’ll quote the extrusion die and the run. Minimum order for a fully bespoke profile is around 500 running metres; below that we recommend selecting from our standard 50 × 100 / 100 × 200 / 75 × 150 family.
A 300 mm projecting vertical fin spaced at 600 mm centres cuts roughly 60–70 percent of direct west sun between 2 PM and 5 PM on a Mumbai latitude. Increasing projection to 500 mm pushes that to ~85 percent. We can run a sun-path study on your elevation and quote the projection that hits the brief.
Not on our spec. We use SS 304 brackets with chemical anchors, and we always put an EPDM isolation pad between the SS bracket and the aluminium blade — galvanic corrosion at that joint is the single failure point on every cheaper install. For sea-facing flats inside 1 km of the coastline we step the bracket up to SS 316.
A 50 × 100 fin in 6063-T6 weighs roughly 4 kg per running metre. A floor-to-floor 3.2 m blade is around 13 kg, and the bracket carries it on two chemical anchors. The slab-edge load is comfortably inside what an existing residential tower can carry without structural rework.
Yes — that is most of our work. We chemical-anchor the SS 304 brackets to the slab edge or clip onto the curtain-wall mullion without breaking the existing finish. A typical west elevation goes up in two to three weeks per face, on a swing stage, with no impact on the flats inside.
6–8 weeks from elevation approval to install for a standard residential facade. Custom extrusion adds 4 weeks at the supplier. We fabricate the brackets and the powder-coat run in parallel so the install slot lines up with the blade delivery.
Pricing depends on blade profile, projection, finish and the linear run of the elevation. Send the elevation drawing and we’ll quote within three working days. Standard 50 × 100 anodised is the starting point; bespoke extrusion in a specific RAL is the upper end.
Send the elevation

Send the elevation.
We’ll quote in three days.

No site-visit fee. No call-centre. No quote written before measurement. Suraj reads the elevation himself, runs the sun-path study, and signs off the shop drawing before we cut the extrusion die.

If the fins are part of a wider facade scope — curtain wall, terrace railings, pergola or canopy on the same project — ask for a single specification covering all of it. One workshop, one fabricator, one finish family.

Phone
+91 98703 08481
Email
surajgudhka@gmail.com
Web
www.aditienterprise.org
Workshop
Santacruz (East), Mumbai
aditi enterprise · Aluminium fabricators for Mumbai's interior designers, architects and HNI residences.
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