Industrial Building Christchurch

Brief: Investigate and resolve ongoing roof leaks for a commercial tenancy while avoiding unnecessary full replacement costs.

Problem: A newly purchased commercial building had persistent leaks that frustrated the tenant.
The previous owner assumed a complete roof replacement (quoted at over $120,000) was the only option.
The new owner wanted a cost-effective, long-term fix that would stop the leaks and protect the investment.

Solution: After inspecting the roof’s condition, Roofmasters presented two clear options:

1. Replace the entire roof and gutters with new Colorsteel and membrane systems.

2. Rejuvenate the existing roof using a Wai Seal Silicone Membrane system — extending roof life and adding a 15-year warranty at a fraction of the cost.

The rejuvenation process included:

• Removing flaking paint and restoring the roof surface.

• Replacing rusted fixings and priming exposed areas.

• Applying two coats of Wai Seal Silicone Membrane.

• Waterblasting and recoating Butynol internal gutters for full waterproofing.

• Installing new parapet capping for a clean, modern finish.

Result: The roof was completely sealed and watertight.
The owner saved around $60,000 compared to full replacement while securing a 15-year leak-free warranty.