Commercial Roofing
Industrial Roofing & Cladding Specialists
Big-span metal roofing done right, from fasteners and flashings to full re-sheets.
Industrial roofs cover a lot of ground -- long-run metal decking spanning huge open floor plates, often with translucent sheeting for light and continuous ridge or whirlybird ventilation. The failures are predictable: corroded fasteners, tired sealant at laps, movement cracking at penetrations, and rust starting where sheets meet gutters. Because the areas are so large, a small unaddressed problem becomes a big leak fast. We handle everything from screw replacement programs to full re-sheeting of Kliplok and corrugated profiles.
Why industrial metal roofs fail
The most common culprit isn't the sheet -- it's the fasteners. Older cyclone-washer screws perish, the neoprene washers harden and split, and every one becomes a pinhole leak. Multiply that across thousands of fixings on a warehouse-sized roof and you have a genuine problem. Sheet laps that were sealed decades ago dry out and separate, and translucent sheeting goes brittle and cracks underfoot.
Coastal and salt-laden Sydney air accelerates corrosion, especially where two dissimilar metals touch or where debris traps moisture against the sheet. We look for these hotspots specifically rather than just walking the ridge.
Re-sheeting and fastener replacement programs
For roofs that are structurally sound but leaking at the fixings, a full fastener replacement program -- swapping perished screws for new sealed fasteners and re-sealing laps -- can buy years of life for a fraction of a re-roof. When the sheeting itself is corroding or the profile is past it, we re-sheet in matching Colorbond or Zincalume long-run, replacing brittle skylights and upgrading flashings at the same time.
We also replace translucent light sheets with modern polycarbonate that won't go brittle, and we can add safety mesh where the originals never had any.
Roof plant, penetrations and cladding
Industrial roofs are covered in penetrations -- exhaust stacks, extraction fans, conduit and ductwork -- and each is a potential leak. We re-flash these properly with purpose-made or fabricated flashings rather than relying on sealant alone. We also handle industrial wall cladding, which shares the same corrosion and fastener issues as the roof and is often overlooked until the wall itself starts staining.
What's Included
- Fastener condition survey and full screw replacement programs
- Re-sheeting of Kliplok, corrugated and trimdek profiles in Colorbond or Zincalume
- Lap re-sealing and flashing renewal at ridges, valleys and penetrations
- Replacement of brittle translucent sheeting with modern polycarbonate
- Corrosion assessment and treatment, including dissimilar-metal hotspots
- Industrial wall cladding repair and replacement
Frequently Asked Questions
Do we need a full re-roof or just new screws?
If your sheeting is sound and the leaks are at the fixings and laps, a fastener replacement and re-seal program often solves it for far less than a re-roof. If the sheets themselves are corroding through, re-sheeting is the honest answer. We'll show you exactly what we find on the roof.
Can you replace the brittle skylights on our warehouse roof?
Yes. Old fibreglass and acrylic light sheets go brittle and become a fall hazard as well as a leak point. We replace them with modern polycarbonate that keeps the light in and can install safety mesh underneath if the originals never had it.
How does Sydney's coastal air affect industrial roofs?
Salt-laden air speeds up corrosion, particularly where dissimilar metals touch or debris traps moisture against the sheet. Roofs closer to the coast need more frequent inspection. We check these hotspots specifically and can recommend coatings or material upgrades to slow it down.
Can you work while the facility keeps operating?
In most cases, yes. We section large industrial roofs so we're only ever working over part of the floor at a time, coordinate around forklift and loading traffic, and keep the areas below our work zone clear and protected.
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