06 — What we build
Stadium & large-span roofs.
Column-free roofs over courts, stands, amphitheatres and assembly grounds, plus membrane ceilings inside auditoriums.
Cricket Academy, PuneIn short
Reviewed October 2026
What is a stadium or large-span tensile roof?
Stadium and large-span tensile roofs cover courts, stands and amphitheatres without columns in the playing area or the sightlines. The membrane spans to a perimeter column line or cantilevers over a stand from behind. On a roof this light, wind uplift assessed under IS 875 (Part 3) decides the steel and the footings.
- Field of play
- Column-free
- Governing load
- Wind uplift
- Light
- Diffuse, low glare
Overview
Nothing structural in the sightlines. The roof crosses the whole space and lands outside it.
Over seating or a playing area the rule is simple: no columns where people look or play. The membrane and its steel span the whole space and land on columns outside it, or cantilever forward over a stand from supports at the back.
Double curvature and pre-tension let a light fabric roof resist the wind uplift that governs a large span, and give it a positive fall so rain drains to defined points. A translucent membrane spreads daylight evenly and takes the glare off a bright sky behind the play or the stage.
- Field of play
- Column-free
- Governing load
- Wind uplift
- Light
- Diffuse, low glare
- ISO 9001:2015Certified manufacturer
- Since 1998Building membrane structures
- One teamDesign, fabrication and installation
- In writing1-yr structure, 5–15-yr membrane warranty
- ItemisedQuote after a site survey
Forms and layouts
Chosen from what is underneath.
- 01
Clear span
The membrane crosses the whole space to a perimeter column line, for a court, an amphitheatre or an assembly ground.
- 02
Cantilever over a stand
Raking columns behind the top of the stand carry the roof forward over the seats, so the front edge is free and every view stays clear.
- 03
Ridge and valley
Alternating high ridge and low valley cables span a very wide bowl, with the valleys as drainage lines.
- 04
Internal membrane ceiling
A faceted tensioned-fabric ceiling inside an auditorium that hides services, softens acoustics and diffuses toplight.
Where it is used
Built for the way each site works.
School and campus courts
Basketball, volleyball and multi-sport courts roofed for all-weather play.
Spectator stands
Cricket, football and athletics stands with a clean view from every seat.
Open-air amphitheatres
Cover over the stage and seating, so events stop depending on the weather.
Covered stadiums
A large membrane roof over the bowl or a major part of it.
Assembly grounds
A big clear span over a school or institutional assembly area.
Auditoriums
Membrane ceilings that conceal services and diffuse daylight.
Specification
What gets specified.
There is no fixed spec. Structure, membrane and finish are recommended after we have seen the site, the layout, the local wind and the budget.
- Structure
- Clear span, cantilever over a stand, ridge-and-valley, or an internal membrane ceiling
- Membrane
- PVC or PVDF for most courts and stands; PTFE-glass where the venue requires a non-combustible class
- Frame
- Mast-and-cable or arched steel truss, galvanised and painted
- Clear height
- Set by the sport or the stage, then the span is engineered outward from it
- Drainage
- Defined low points and valleys, piped to ground
- Warranty
- One year on structure and workmanship; five to fifteen years on the membrane, by fabric grade
Price for your site
Four fields. One call back.
- 01We call to understand the site and the use.
- 02We survey: dimensions, ground, access.
- 03You get an itemised quote with the membrane grade named.
It spans further on less steel because it carries load in tension, keeps the playing area column-free, and lets diffuse daylight through, so a covered court does not become a dark one.
The clear span and clear height the sport or seating needs, and then the wind uplift for that site under IS 875 (Part 3). On a light roof the wind, not the weight, governs the steel and the footings.
Yes. A cantilever roof is carried on raking columns behind the top row, so the front edge over the seats has no support at all.
Next service
Industrial Structures
Start a project
Roofing a court, stand or venue? Send us the size and location.
Tell us where it is, roughly how big, and what it has to cover. We come back with questions, options and the next step, which is usually a site survey.
or call +91 93159 45187