13 — What we build
Maintenance & repair.
Inspection, washing, re-tensioning, repairs and full membrane replacement, for roofs we built and roofs we didn't.
In short
Reviewed October 2026
How do you maintain a tensile structure?
Tensile structure maintenance means washing the membrane every 6–12 months, clearing gutters quarterly, an annual technical inspection with re-tensioning where needed, and coating repairs every 3–5 years. A slack membrane is behind most early failures. When a membrane is worn out, a new one is fitted to the existing steel frame.
- Inspection
- Annual technical survey
- Washing
- Every 6–12 months
- Re-covering
- New membrane, same frame
Overview
Most failures we are called out to come from the same cause: a roof left alone for a decade until the membrane went slack.
A tensile roof is two things that age differently. The membrane is a wear layer that is cleaned, checked and eventually renewed. The steel, cables and fittings rarely fail suddenly; they degrade quietly through coating damage, corrosion at welds and base plates, and pre-stress slowly bleeding out of the system.
A slack membrane ponds water, flutters in wind and concentrates stress at the corners. That wears the coating, opens seams and fatigues fittings. Re-tensioned when it needs it and washed on schedule, a membrane reaches the top of its design range. Ignored, it can lose years.
- Inspection
- Annual technical survey
- Washing
- Every 6–12 months
- Re-covering
- New membrane, same frame
- 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
What we do on an existing roof.
- 01
Inspection
Seams, clamp lines, cables, fittings, tension, steel and coatings, with a written report.
- 02
Cleaning
Washing without high-pressure jets or solvents that damage the coating.
- 03
Re-tensioning
Bringing a slack membrane back to its design pre-stress before it ponds or flutters.
- 04
Repairs
Welded patches, seam repairs, replaced fittings and made-good steel coatings.
- 05
Re-covering
A new membrane cut and welded for the existing frame, once the old one is worn out.
Schedule
The upkeep schedule.
A workable baseline for a permanent PVC or PVDF roof in Indian conditions. Coastal, industrial and tree-shaded sites need washing more often; the inspections stay the same.
- After every heavy storm
- Walk the site: ponding, torn edges, displaced fittings, blocked outlets
- Quarterly
- Clear leaves, nests and silt from gutters, valleys and drains
- Every 6–12 months
- Wash the membrane; sooner on polluted, coastal or tree-shaded sites
- Annually
- Full technical inspection by a specialist, with re-tensioning where needed
- Every 3–5 years
- Deep clean, make good steel coatings, review fastener torque
- Once or twice in the frame's life
- Membrane replacement on the existing structure
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.
Yes. We inspect first and report what we find. Re-covering a roof built by someone else means surveying the frame and patterning a new membrane to fit it.
Usually, with a welded patch. Photograph the damage and do not attempt a repair first: a patched tear is harder to assess, and a third-party repair can end a warranty.
Water ponding after rain, fluttering in wind, or creases at the corners are the signs. An annual inspection catches it before it shows.
Next service
Car Parking Shades
Start a project
Got a roof that needs attention? 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