Metal Roof Overlay

A cost-effective, compliant and long-term roofing solution, without removing your existing roof


A metal roof overlay is the smarter alternative to re-roofing for commercial, industrial, and strata buildings. Instead of tearing off the existing roof, a new PVC or membrane system is installed directly over the top, delivering a durable, watertight upgrade with minimal disruption, no business shutdown, and significant cost savings.

With more than 20 years’ experience across complex assets, Danrae Group specialises in engineered overlay systems that extend roof life, improve performance, and meet compliance requirements.

Why businesses choose Metal Roof Overlays


  • No demolition or roof removal

Overlay systems are applied directly over your existing metal roof eliminating noise, debris, and disruption.

  • Up to 30% cheaper than re-roofing

Save on labour, waste removal, crane costs, and extended project periods.

  • Stronger waterproofing performance

Our systems integrate with our specialist remedial waterproofing services to provide complete asset protection.

  • Reduced risk & faster installation

Perfect for busy facilities, and buildings with sensitive equipment.

  • Ideal for strata, commercial and industrial assets

Suited for warehouses, retail centres, strata complexes and public buildings.

Signs your roof needs more than repairs


Roof repairs and patching can temporarily fix a problem — but they rarely offer a long-term solution.

If your building has ANY of the following, an overlay may be the better option:

  • Recurring roof leaks

  • Rusted or corroded roof sheets

  • Standing water or drainage issues

  • Failed sealant or penetrations

  • Increased heat load in summer

  • A roof approaching end of service life

  • Repeated repair costs

  • Restricted access that makes re-roofing difficult

Overlay systems provide a durable alternative to repeated roof repairs and remediation.

Our overlay installation process


The Metal Roof Overlay System combines cutting-edge materials and expertise for a seamless upgrade:

  1. Vapour Barrier: Prevents moisture damage to your existing roof.
  2. Insulation Boards: Boosts energy efficiency and creates a solid base.
  3. PVC Membrane: Adds a protective, lightweight layer that’s weatherproof, UV-resistant, and built to last.

Simple Comparison: Roof Repairs vs Roof Restoration vs Roof Overlay


Roof Repairs

✔ Quick fix
✔ Low upfront cost
✖ Only temporary
✖ Leaks often return
✖ Doesn’t address underlying issues


Roof Restoration

✔ Better than basic repairs
✔ Fresh coating improves appearance
✖ Still short–medium term
✖ Not a full waterproofing system
✖ Doesn’t solve structural ageing


Roof Overlay (Best Long-Term Option)

✔ No need to remove the existing roof
✔  Long-term solution
✔ Minimal disruption to residents/tenants
✔ 20–30+ year lifespan
✔ Significantly cheaper than a full re-roof long-term

Go straight to the experts


Ready to upgrade your metal roof ?  Contact us today for expert advice…..We don’t just provide roofing solutions – we deliver peace of mind.

CONTACT DANRAE GROUP

for more information