How to Waterproofing a Metal Roof

Waterproofing Membranes to Repair Metal

Roof - New & Existing

Using the Liquid Rubber spray-apply waterproofing system, we can restore your roof with a permanently elastic, seamless membrane that is ideal for long term waterproofing protection.

Roof Waterproofing Company in Melbourne Victoria Australia

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Metal Roof Repairs & Coatings

  • There are more and more waterproofing systems on the market each year and selecting the right products, method or system for your roof project can be difficult.
  • The consequences of roof leaks, especially in an industrial or commercial setting, means a quality waterproofing product together with costs is critical.
  • While cost is certainly always  factor, a qualified and experienced roof waterproofing company is one of an important deciding factor.
  • An incorrectly installed waterproofing system is likely to fail – which can result in short term failure together with catastrophic water leaks and unnecessary, costly repairs.
  • Most waterproofing products are manufactured fit for purpose,  it is often very much down to the quality of how a roof membrane is applied that is the key factor for long-term success. 

Spray application allows Liquid Roof Coatings to contour to the shape corrugated iron & clip lock metal roofs.

Liquid Roof Coatings

Liquid Rubber waterproofing membranes will adhere to just about all surfaces.

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Roof Spray On Sealer 

  • Liquid Applied Roof Coatings can waterproof a metal surfaces without having to remove and dispose of the existing roof.
  • Liquid Applied Roof Coatings can be spray under & over all shapes and around roof penetrations.
  • Saving time and avoids the cost of removal &  environmental issues associated with disposal.

Liquid Membrane waterproof "busy" roof

Leaking Metal Roofs - Problem Areas to Fix

  • Old, rusty or leaky metal roofs commonly have water leaks at the junctions of flashing details, roof penetrations i.e vents, fasteners, valley gutters, ridge caps, skylights, etc. 
  • Sheet membranes themselves, either due to incorrect application methods or lack of roof maintenance, very often come apart at the seams and overlap details.
  • Roof coatings that lose flexibility over time may also have water ingress due to screws & fasteners loosen due to normal cyclical movement and harsh weather condition that all roofs are subjected to. 

Waterproofing Metal Roof

Liquid membrane contours to shape

Sheet membrane - seams and joins de-laminate.

Metal Roof Coatings

Existing metal or corrugated iron roofs with leaks & rust are challenging to fix:

  • Existing roofs often are difficult to access
  • Removal and replacement can be prohibitively expensive
  • Replacing a roof causes disruption to business operations
  • Existing rooftop fixtures, i.e HACV & services, often cannot be moved.

Liquid membrane contours to shape

Liquid Spray Apply to Metal Roof

Best Waterproofing Product for Metal Roof

Liquid Rubber Waterproofing is the ideal membrane for metal roof refurbishment & has many advantages over traditional waterproofing membranes as:

  • Cold spray-applied quickly- minimizes disruption.
  • Seamless – molds to roof fixings, seams, welds and joints.
  • Ideal for pipe penetrations and box gutters.
  • Unprecedented long life.
  • Extreme flexibility – contracts & expands with roof.
  • UV stable, salt and chemical resistant.

Waterproofing Metal Roof

Metal Roof Repairs: Using Liquid Waterproofing Membranes

Heat Reflective Roof Membrane

Findlay & Evans Waterproofing

Our Team can overspray an existing leaking & rusted metal roof without the cost & inconvenience of total roof removal.

Do you have a warehouse, factory or office with water leaks and deteriorated waterproof membrane?


Metal Roof Repairs - Case Studies

Read more. Findlay-Evans Recent Projects