Blog

Waterproofing Membranes for Flat Roof

Superior Spray-Applied Liquid Waterproofing Membranes: The Go-To Solution for Industrial Roofing Needs

Case Study: AGL Power Station Concrete Flat Roof

  • Findlay Evans Waterproofing was contracted to apply and install the concrete rooftop waterproof membrane for an environmentally sensitive power station in Melbourne.
  • AGL Mt Bogong Power Station, the largest hydroelectric asset built on mainland Australia for more than 25 years, is located in the upper catchment of the Kiewa valley.
  • This is an extremely environmentally sensitive location and presented many challenges.
  • To reduce the impact on the surrounding area, the final power station structure is almost entirely buried and re-vegetated.
  • The waterproofing s product and method had to conform to these requirements.
  • F.E.W Waterproofing are proud to be the specialist waterproofing contractor on Award Winning project at AGL Power Station.

Commercial Roof Waterproofing Repairs

Case Video Below

Spray Applied Liquid Waterproofing Membranes

  • Findlay-Evans  Waterproofing provided a seamless monolithic waterproof membrane which is ideal for roof applications. Our system is fast to apply and meets all the requirements of health, safety and environmental issues.
  • It is up to 750% elastic to expand and contract with the roof surface.
  • Liquid Rubber can be used in many waterproofing applications and its low cost and versatility has made it one of the most sought after materials in the roofing industry.
  • Suited to almost all common types of industrial roofing; including corrugated fibre, aluminum, steel, concrete, timber, asbestos, bitumen and can also be applied over failed sheet membrane systems.
  • Applied directly with no priming, offers a 100% waterproofing formula and outstanding adhesion.

Findlay-Evans Waterproofing are the Australian Certified Applicator for Liquid Rubber Waterproofing Systems

View Video Below – Case Study

 

Repair Leaking Roof Waterproof Membranes

Achieving Permanent Leak Repairs with Flexible and Seamless Liquid Rubber Membranes

Permanent Waterproofing Repairs to Leaking Roof with Robust Membranes

  • Using a FLEXIBLE and SEAMLESS spray-applied Liquid Rubber membrane, our Team can repair leaking & failed sheet/torch on membranes without the cost of a complete re-installation.
  • In many cases with this system it is possible to completely over coat the existing roof surface with a fast spray application.

Torch On and traditional sheet membranes have a tendency to leak at split seams.

  • Sheet/roll on membranes have a high tendency to leak at the joins which are often either heat or chemically welded.
  • These seams are liable to break and/or deteriorate under temperature and cyclic movement.Sheet membranes are not fully adhered and bonded to the substrate surface.
  • Once water enters the membrane, the entire area can become water logged underneath the sheet membrane.
  • This water can then travel a great distance from the original entry point.

Findlay-Evans Waterproofing – Certified Liquid Rubber Applicators based in Melbourne

  • Findlay-Evans Waterproofing offers various solutions to failed existing sheet membranes that are leaking at joins and seams but otherwise are intact.
  • Our Team can overcoat these existing membranes with a spray application of liquid waterproofing coatings that will firmly adhere to the surface.
  • We can offer repairs to existing membranes that are leaking, deteriorated, cracked and aging.
  • Using a cold spray application, Liquid Rubber membranes can overcoat an existing roof.
  • This provides a fully bonded seamless waterproof system over the existing failed membrane.

Repairs that are Cost Effective & Saves Time

View Video Below – Case Study

Waterproofing Product for Roofs

  • It is possible to repair existing leaking roofs with failed waterproof membranes without removal.
  • Findlay-Evans Waterproofing will assess the roof for suitability for over spray application.
  • If the field of the sheet membrane is in good condition but water ingress is occurring at damaged seams, this is a great opportunity for our cost effective repair solution.
  • Cracked seams and joins are bridged with polyurethane and/or geotextile bandage.
  • Liquid Rubber is spray-applied over clean and dressed joins to create a FLEXIBLE and SEAMLESS waterproof membrane.
  • Fast, cost effective spray applied liquid membrane. Our dedicated spray unit is specially designed.

Our dedicated roof spray unit is used for fast Liquid Rubber application.

Roof Coatings & Waterproofing

A Seamless, Adaptable, and Durable Solution for Roof Waterproofing

Liquid Applied Membranes have unique properties that make these ideal as a roof waterproofing product.


Heat Reflective Roof Membrane

Liquid Waterproofing Products have the capability to conform to the shape of any roof, seal around rooftop utilities, services and roof penetrations.

Repairs to Leaking Roof

Findlay & Evans, accredited Waterproofers AND Registered Builders based in Melbourne and over 30 years in the construction industry, are great advocates of liquid waterproofing membranes – especially for roof and rooftops.

  • Torch On and Sheet Membranes have joins or seams or overlaps.
  • Seams can be a point of weakness in a roof membrane as they have potential to delaminate, crack or peel with aging, UV exposure and time.
  • Leaking roofs often have water ingress via joins/seams which will then track underneath the membrane, often travelling great distances from the original source of entry.
  • Liquid Roof Membranes provide a waterproofing system that is one continuous monolithic barrier – NO SEAMS, JOINS OR OVERLAPS.
  • Liquid Waterproofing Products are the method of choice for complex and irregular shaped roofs.
  • Liquid Membranes can be spraying applied over existing roof membranes – so there is often no need to removed the old membrane or roof.

Our roof membranes provide waterproofing in one continuous monolithic barrier – without seams, joins or overlaps.

Roof repairs using Liquid Applied Membrane with irregular shaped roof & another with various rooftop services & utilities.Liquid Rubber provides a permanent waterproof barrier that will seal completely all rooftop services in one continuous spray applied membrane.Doesn’t matter whether vertical or horizontal or what surface shape – Liquid Membranes contour accordingly.


Roof Waterproofing Membranes


Waterproofing Around Rooftop Utilities

Waterproofing Method for Flat Roof

  • Findlay & Evans preferred roof waterproof method is cold spray-applied Liquid Rubber waterproofing system.
  • Liquid Membranes provide water protection to a wide range of surfaces; metal, concrete, timber and asbestos.

Video Case Study

Elastomeric Roof Coatings

Amongst the many unique properties of Liquid Rubber Membranes, are two which are critical for roof waterproofing: extreme flexibility combined with strong adhesion – both ideal qualities for a rooftop waterproofing membrane.

  • Guaranteed fully bonded membrane system.
  • Extreme adhesion to nearly all substrates.
  • No lifting, peeling or splitting of seams, joins or overlaps.
  • Extreme Flexibility – so the waterproof membrane moves with roof contraction and expansion.
  • Robust Waterproof Barrier – our roof waterproofing method provides strong adherence.
  • High Performance – UV stable, pollution, salt & chemical resistant.

Liquid Rubber waterproofing membranes have amazing flexibility which provides capability for thermal expansion and contraction – a necessity for all roofing structures.


Metal roof with Liquid Membrane

There are many waterproofing products that eventually crack, flake or peel as they are not engineered to move with temperature fluctuations.

  • Liquid Rubber can also encapsulate rust and asbestos and is UV stable and Eco-friendly.
  • Our flexible roofing membranes will not crack over time due to structural and/or substrate movement.

Spray Apply Liquid Membranes for Rooftops


Spray Applied Elastomeric Liquid Membrane

Liquid spray-applied waterproofing:

  • Rapid application – ideal for existing roofs as minimizes disruption and inconvenience.
  • Spray application molds waterproofing barrier to any shape and around roof penetrations
  • Cost effective, long term and durable waterproofing barriers

Best Waterproofing Membrane for Roof Repairs

Video Case Study: Remedial Waterproofing for Power Station

Commercial Office Rooftop with a “busy” roof requiring repairs and waterproofing.

  • Badly deteriorated and damaged existing roof membrane.
  • Severe water leaks to rooms below causing significant damage.
  • Impractical to replace entire roof.
  • Rooftop plant deck with a multitude of services & air conditioning equipment.


Case Study: Severe cracks on existing roof membrane


Roof with new membrane

Video Case Study

Waterproofing Membrane for Flat Concrete Roof

  • AGL Mt Bogong Power Station, the largest hydroelectric asset built on mainland Australia for more than 25 years, is located in the upper catchment of the Kiewa valley and was an extremely environmentally sensitive project.
  • To reduce the impact on the surrounding area, the final power station structure is almost entirely buried.
  • Based on experience and knowledge Paul Evans, Director of F.E.W Waterproofing, knew that Liquid Rubber was the best product for this project.
  • After Liquid Rubber roof membranes was installed, the entire area has been re-vegetated, effectively reducing the visual impact of the project on the surrounding Alpine National Park.

Findlay & Evans Waterproofing and its subsidiary Liquid Rubber Melbourne are proud to be specialist waterproofing contractor on Award Winning project at AGL Power Station.

Waterproofing Repairs to Existing Roof Membrane

Solving Roof Leaks With Liquid Waterproofing

Case Study – Roof Repairs

How to repair a roof with an existing leaking waterproofing membrane

  • The Findlay-Evans Team were contracted to repair a leaking commercial rooftop; the existing membrane had deteriorated – most likely due to an inability to move with expansion and contraction of the roof surface.
  • We over coated the existing damaged membrane with a spray apply Liquid Rubber waterproofing barrier.
  • This provided a robust waterproofing membrane with fast spray installation without the costly alternative and disruption of replacing the old roof.

Case Study Video: Rooftop Membrane Repairs

Using Liquid Rubber Waterproofing Membranes

  • Our preferred choice of waterproofing product for roof projects is the Liquid Rubber system.
  • Liquid Rubber membranes have the unique properties of extreme flexibility combined with robust adhesion to the surface – both ideal qualities for a rooftop waterproofing membrane.

Flexibility is a vital property for quality roof waterproofing membranes


Extreme Flexibility of Liquid Rubber

  • A Liquid Rubber membrane will expand and contract with the thermal cycle of a building. This means Liquid Rubber has the capability of moving with the structure or substrate it is adhered to.
  • Liquid Rubber has an elasticity with elongation to 800% and memory 95%.
  • There is no other product on the market that we know of that can move with buildings and structures in such way as Liquid Rubber.
  • Liquid Rubber also has the added ability of enhanced longevity and guaranteed will not crack with age.

Why Use Liquid Applied Waterproofing Membranes

  • Liquid Membranes provide a robust fully bonded waterproof membrane – NO SEAMS OR JOINS.
  • Liquid roof membranes also conform to the contour and shape of the roof substrate – perfect for profiles, complex and irregular contours.


Seamless Liquid Waterproofing

Spray Applied Liquid Waterproofing Applications

  • Sheet membranes have seams or joins which are a point of weakness for water leaks – there is always the potential for joins to delaminate with age.
  • Water can then track underneath these cracked joins and quite often end up quite a distance from the original point of entry. This makes it extremely difficult to detect the source of water leaks and provide a solution.
  • Liquid applied membranes are a monolithic, fully-bonded and strongly adhered membrane without joins or seams – preventing cracking due to aging and UV sunlight.

Waterproofing Membranes – Seamless & Flexible

  • Spray application is a very fast process – we can spray up to 800m2 coverage per day of a rapid curing waterproof membrane, depending on climatic conditions.
  • Liquid Rubber membranes can provide water protection to a wide range of surfaces – concrete, timer, metal, flat, sloped or curved. This is an effective and cost efficient method of remedial work without the costly need of removing the existing roof.

Waterproofing Concrete Tanks

Waterproofing Membranes for Concrete Tanks

When it comes to preventing water damage and preserving concrete storage structures, robust waterproofing membranes are essential.

Concrete tanks play a vital role in containment: they function as drinking water containers, in wastewater treatment plants and water storage reservoirs. So waterproofing protection for concrete structures requires that the membrane will act to keep water & products in while at the same time keeping environmental contaminants out.

The elasticity of Liquid Rubber allows for substrate movement which is vital especially for concrete storage tanks. Concrete may eventually crack (and leak) due to shrinkage, settling, problems due to unstable soil and other factors.

Liquid Rubber has low permeability, excellent adhesion and elasticity , which all make this the ideal waterproof membrane to prevent water damage and bridge stress cracks in concrete

Waterproofing Steel Tanks

Waterproofing Membranes for Steel Tanks

FINDLAY-EVANS Waterproofing apply waterproofing membranes that will adhere to just about any metal surface: including low carbon steel, galvanized and rusted corrugated iron.

Findlay-Evans Waterproofing application creates a seamless membrane barrier on metal surfaces, acting as an excellent guard against corrosion, prevents rust on new surfaces and further corrosion on already affected areas.

Liquid Rubber is the waterproofing product of choice for all storage tank applications.

Storage Containment Tank

All Liquid Rubber products are water based and free of Volatile Organic Compounds (VOCs) – suitable for food storage and drinking water containment.

Liquid Rubber is a spray-on flexible & seamless membrane. Consequently the perfect waterproofing product for tanks of any shape, size and contour as the liquid application automatically moulds to the required shape.

Repairing membranes can be expensive and hold up ongoing construction works.We offer a tough and durable external laminate protection sheet that provides excellent robust barier for waterproofing membranes.This composite medium uses cross linked foam and has many benefits over the conventional core flute board which is of less quality.

top
GET A QUOTE