WATERPROOFING MEMBRANES

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WATERPROOFING MEMBRANE

Talk to the experts at No.1 Roofing and Building supplies about which is the right waterproofing membrane for you

Waterproofing is an essential element of all aspects of building design and construction.

Water ingress accounts for a large percentage of building envelope failures and will usually require expensive repairs and remedial action.

Waterproof membranes are a critical part of residential house and commercial building practices whether you’re trying to stop water from escaping from a swimming pool or need to prevent the passage of water into walls and habitable areas.

Waterproofing membranes are typically found in the following:

  • Foundations and retaining walls
  • Bathrooms, wet areas, & pools
  • External walls, balconies & terraces
  • Roof decks and plant room floors
  • Car park docks and lift pits

Australia’s climate, with its torrential downpours and high humidity, as well as rising sea levels and increasing flooding events means that installing adequate waterproofing membranes is essential.

Water ingress can rot timber framing and flooring, rust pipes, crack concrete, undermine foundations and create dangerous mould problems.

Adequate waterproofing layers keep your buildings safe and dry and lower your heating bills as well.

Waterproof membranes also play a vital role in restoration and repair projects. Heritage buildings and homes may be at risk from water damage due to poor design and changes in ground water levels.

Slumping foundations, damp basements, and mould are common signs of a water issue that needs attention.

There is a vast range of waterproof membranes available; some are multipurpose whilst others are designed for highly specific applications.

Use this guide to explore the range of waterproof membranes that we can supply.

WHERE WATERPROOF MEMBRANES ARE COMMONLY USED

Waterproofing Membrane applications - where they can be used

WATERPROOFING MEMBRANE APPLICATIONS

Waterproof membranes come in a range of types designed for many different applications. Click to see more information for each application listed below:

BATHROOMS & SHOWERS

Wet areas such as bathrooms, showers and laundries can be a real challenge for ensuring timber framing & flooring, insulation materials, electrical wiring and internal cladding materials are not exposed to damaging water ingress.

The risks of water ingress with standard acrylic tray and wall showers is significant in its own right but becomes even more important if you wish to install a wet area shower.

Even small amounts of moisture can damage some flooring products, in particular the particle board type, leading to swelling, popped joints and nails/ screws and eventually the complete degradation of the material.

A waterproof membrane is essential in wet areas both for floors and walls. Coverings such as tiles or vinyl do not provide an adequate level of protection by themselves.

Only a recommended waterproof membrane can give you real peace of mind.

See our range of suggested products for bathroom & shower water proofing applications:

Product Brand Waterproofing Product
Drizoro
  • SEALTUFF RAPIDCURE POLYURETHANE
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

POOLS & WATER TANKS

Waterproof membranes form an essential role in maintaining a good seal beneath and around swimming pools, water tanks, and sewerage treatment tanks.

Waterproof membranes here need to be able to withstand the enormous pressures involved in containing large volumes of water.

UV exposure may also be an issue as well as for the need for a membrane that is compatible with safe drinking water.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

WALL & FLOOR TILES

It can be particularly challenging to ensure an effective waterproof layer underneath tiles because a good adhesion is required for screed.

Effective waterproofing is essential especially where tiles are used in wet areas because the gaps between tiles can allow easy water ingress.

Product Brand Waterproofing Product
Drizoro
  • SEALTUFF RAPIDCURE POLYURETHANE
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

WALLS

Many cladding types and building designs can be prone to leaks especially if the flashing's and drainage have not been done correctly.

This is true for both older style and more modern constructions. Whether you’re doing a new build or repairing an existing leak it’s important to make sure the waterproof membrane is effective and durable.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik
  • PRODUCTS TO BE ADDED

FORMWORK

Waterproof membranes play a vital role as both a barrier against water penetration as well as providing an adequate surface for applying all types of cladding types including Hebel block, SIP panels, Dincel, AFS, brick, block, render, and paint.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik
  • PRODUCTS TO BE ADDED

ROOF

Modern flat roofs especially of the concrete type require the careful application of an effective waterproof membrane.

This also applies to balconies, terraces, and planter boxes, all of which frequently cause water ingress problems.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

BALCONIES & TERRACES

Waterproof membranes are essential here too as with any structure that extends beyond the building envelope.

Inadequate sealing against moisture penetration combined with the significant load bearing properties of balconies make water ingress and damage a common occurrence.

A waterproof membrane will need to cover not only the floor but also extend partway up adjoining walls to form an adequate barrier.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

FLOORS

Water damage is one of the most common and expensive insurance jobs. Water leaks can damage floors over an extended period of time before the damage becomes obvious.

Effective waterproof membranes are particularly critical for floors below ground (basements and car parks), in wet areas such as bathrooms, and underneath pools and spas.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

FOUNDATIONS

Foundations and basement areas commonly require some form of waterproof membrane. This is especially true for multi-storey buildings, sloping sites, and in older buildings where adequate drainage may not have been designed or built into the site.

Burst water pipes can also do significant damage below ground if basement and foundation level structures are not protected by a waterproof membrane.

In many cases these areas are often out of sight, out of mind and water seepage can cause considerable damage before it’s noticed including slumping foundations, cracked and bowed walls, rotting timbers, and the growth of unhealthy levels of mould.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik
  • PRODUCTS TO BE ADDED

CONCRETE

Concrete buildings are surprisingly susceptible to water damage, especially modern flat roof designs where water can pool and accelerate the speed of structural decay in the roofing materials.

Concrete roofing that lacks adequate waterproofing may allow water to infiltrate and corrode the steel reinforcing rods.

Ultimately, this will result in weak, crumbling concrete structures that allow water ingress even further into the building envelope.

This type of damage can be very expensive to fix and so the installation of a reliable waterproof membrane is critical.

Product Brand Waterproofing Product
Drizoro
Gripset
Soudal
  • PRODUCTS TO BE ADDED
Bostik

WATERPROOFING MEMBRANE TYPES

LIQUID  |  BITUMEN  |  RUBBER  |  SHEET | CEMENT

Waterproof membranes come in a range of types designed for different applications and conditions.

Membranes need to be flexible and able to expand and contract when temperature changes cause the building surface to move.

Which one is right for you will depend on a number of factors. You may need to consider the following aspects:

  • UV exposure
  • Type of substrate
  • Exposure to dirt & traffic
  • Size of area to be covered
  • Internal or external use
  • Storage of potable water

It’s important to choose the right waterproof membrane material for your specific job and know how to apply it.

Remember, the major reasons for waterproof membrane failures are poor or inadequate preparation and incorrect product choice.

GRIPSET Waterproofing Membrane

LIQUID

There are essentially three types of liquid membranes; water or acrylic –based, bituminous, and cementitious.

Liquid membranes offer real flexibility in application and are usually applied using trowels, rollers or spray guns.

Polyurethane is a highly popular liquid waterproof membrane that can be in the form of a water-based, acrylic-based or even a hybrid type product.

It is ideal for use in many different situations including concrete and timber surfaces in both internal and external situations. Polyurethanes cure to form a tough seal.

Polyurethanes also frequently have low VOC ratings, which means they are better for your health and the environment.

Polyurethanes often have a rapid drying time and so can be in full service within a very short space of time. You may need to add a top coat for UV protection.

BITUMEN

Bituminous membranes are most commonly used underground for foundation protection or in internal settings.

Exposure to UV or heavy traffic can damage some bituminous products but many manufacturers overcome this with the addition of acrylic latex or other polymers to add flexibility.

Bitumen membranes often feature a non-woven reinforcing fabric layer as well.

RUBBER

Bitumen rubber products offer outstanding flexibility and adhesion.

They’re great for retaining walls and underground surfaces and can be used with concrete, fibre cement, plasterboard, galvanised iron, Zincalume, and even polystyrene.

SHEET

Some waterproof membranes are available as self-adhesive sheets. These are easy to apply and are usually low VOC rated so are good for the environment.

PVC sheets are especially durable and deliver exceptional waterproofing performance.

WATERPROOFING MEMBRANES BRANDS & PRODUCTS

DRIZORO  |  GRIPSET  |  SOUDAL  |  BOSTIK

DRIZORO

Drizoro offer a number of multipurpose, membranes that provide exceptional waterproofing above and below ground,  for wet exterior and interior applications.

Not only do these products deliver superior results but they do not require primers or other additional products.

MAXSEAL FLEX

Maxseal Flex is a multipurpose product ideal for most surfaces inside and out, above and below ground, for negative or positive water pressure.

Maxseal Flex is a 2-part product; a water-based acrylic resin and a mortar-based mixture. It must be applied to a wet surface, does not need any additional sealer or primer.

Maxseal flex is suitable for use with potable water and non-porous substrates such as permanent formwork.

Drizoro Maxseal Flex is available at our online shop in 7KG & 35KG options.

 

BUY MAXSEAL FLEX ONLINE

MAXSEAL FLEX M

Maxseal Flex M is a flexible, one component cement based membrane, applied to a wet surface for waterproofing against positive & negative hydrostatic pressure.

Maxseal Flex M is approved by James Hardie for waterproofing fibro cement substrates, and Hebel.

 

BUY MAXSEAL FLEX M ONLINE

MAXSEAL SUPER

Maxseal Super is a cement-based waterproof coating suitable for use on concrete, (cured & fresh), concrete blocks, cement plasters, masonry and brick.

Maxseal Super is ideal for foundation structures and external walls and will easily withstand high hydrostatic water pressures. It’s non-toxic and suitable for drinking water storage.

 

BUY MAXSEAL SUPER ONLINE

MAXREST

Maxrest is a single product for concrete repairs and restoration of structural concrete.

It has a 15 to 20 minute dry time and will not shrink or slump. When cured it is at least as strong or stronger than concrete.

Drizoro Maxrest is available on the online store in 5KG & 25KG options.

 

BUY MAXREST ONLINE

SEALTIGHT

Sealtight is a non-toxic, non-flammable liquid that actually penetrates concrete, plaster and natural stone to provide a completely waterproof layer.

It’s ideal for sealing showers, wet areas, Concrete floors, Face brick walls, terrazzo, natural stone, and swimming pool surrounds.

Drizoro Sealtight is available on the online store in 2L & 5L options.

 

BUY SEALTIGHT ONLINE

MAXJOINT ELASTIC

Maxjoint Elastic is designed for sealing joints in concrete, prefab, and ceramic structures.

The 2 part formulation is a resin-based liquid and a cement/aggregate-based mortar provides high bond strength against positive & negative hydrostatic pressure

It will allow up to 15% movement , and must be applied to a wet surface.

Drizoro Maxjoint Elastic is available on the online store in 2KG & 10KG options.

 

BUY MAXJOINT ELASTIC ONLINE

MAXSEAL FOUNDATION

Maxseal Foundation is a cement-based product with additives designed to provide total waterproofing in foundations, basement, car parks, retaining walls , and Hebel.

It will seal against positive and negative water pressures. It’s easy to apply and requires no primer or additional products.

Drizoro Maxseal Foundation is available on the online store in 14KG H'pk & 25KG options.

BUY MAXSEAL FOUNDATION ONLINE

Waterproofing membrane applications, product and where to use

GRIPSET

Gripset waterproof membranes feature the latest polymer technology and provide industry-leading durability and performance.

Gripset provide a vast range of waterproofing membranes including:

They also supply cement-based membranes, joint sealers, and tile waterproofing systems. See below for a small sample of their enormous range.

The Gripset liquid membrane series includes:

GRIPSET LIQUID MEMBRANES

Gripset liquid membranes combine outstanding performance with fast turnaround and real cost efficiencies.

The liquid membrane range includes:

P39 POLYURETHANE HYBRID MEMBRANE - 15L

P39 is an elastomeric / polyurethane hybrid membrane that delivers exceptional waterproofing performance for exposed roofs, parapets, balconies and decks as well as under tiled surfaces.

 

BUY GRIPSET P39 ONLINE

38FC FAST CURE MEMBRANE - 15L

38FC is a rapid cure latex membrane with a reinforcing fabric core that’s ideal for wet areas as well as external balconies and retaining walls.

38FC can be tiled over in as little as 4 hours.

 

BUY GRIPSET 38FC ONLINE

RD WEATHERPROOF MEMBRANE - 15L

RD is a highly flexible acrylic membrane for external applications.

It delivers superior UV protection and durability and can be used on steel roofs, concrete, render, masonry, fibre cement, asbestos and on vertical walls as well as horizontal surfaces.

 

BUY GRIPSET RD ONLINE

GRIPSET SHEET MEMBRANES

Gripset sheet membranes combine outstanding performance with fast turnaround and real cost efficiencies.

The sheet membrane range includes:

BRW PF WEATHERPROOF MEMBRANE

BRW PF is a self-adhesive butyl rubber sheet membrane that incorporates a fabric reinforcing layer.

Designed for internal and external areas, the BRW PF forms an instant waterproof seal on most substrates including Dincel, plastics, concrete, and most metal claddings.

It delivers excellent performance across a wide range of extreme temperatures.

 

BUY BRW PF WEATHERPROOF ONLINE

GC2 ANIT-FRACTURE SHEET MEMBRANE

GC2 is used as part of waterproof membrane system, its exceptional ability to resist cracking makes the GC2 ideal for repair and restoration work.

Toppings such as tiles or paint can be applied immediately after installation.

 

BUY GC2 ANTI-FRACTURE MEMBRANE ONLINE

GRIPSET CEMENT BASED MEMBRANES

Gripset cement based membranes combine outstanding performance with fast turnaround and real cost efficiencies. The cement based membrane range includes:

C1P CEMENTITIOUS MEMBRANE

C1P is a single product flexible polymer and cementitious membrane for either positive or negative pressure applications.

It’s suitable for underground, submerged applications.

 

BUY C1P CEMENTITIOUS MEMBRANE ONLINE

2P CEMENTITIOUS MEMBRANE

2P is a 2-part latex cement waterproof membrane that’s designed for internal and external wet areas as well as subterranean and fully immersed applications such as swimming pools.

Includes 15kg bag & 10L bucket.

 

BUY 2P CEMENTITIOUS MEMBRANE ONLINE

SOUDAL Waterproofing range of products

SOUDAL

Soudal is a world-leading manufacturer of sealants and adhesives. We stock a wide range of Soudal waterproof membranes including.

SOUDAGUM HYDRO MEMBRANE

Soudagum Hydro is a single product with no solvents that is ideal for waterproofing vertical and horizontal surfaces indoors and outdoors.

Perfect for skylights, wall penetrations, concrete roofs, basements, and underground foundations.

Soudal Soudagum Hydro Membrane  is available on the online store in 1KG, 5KG & 15KG options.

 

BUY SOUDAGUM HYDRO ONLINE

SOUDATIGHT GEOTEXTILE

Soudatight Geotextile is a non-woven reinforcing fabric made of polypropylene in conjunction with Soudagum Hydro.

This fabric membrane is perfect for sealing seams and joints around penetrations and window installations.

 

BUY SOUDATIGHT GEOTEXTILE FABRIC ONLINE

SOUDAPRIM DP PRIMER

Soudaprim is a primer for the perfect preparation of porous surfaces such as timber flooring or on concrete or even gypsum boards.

Soudal Soudaprim DP Primer is available on the online store in 1L & 5L options.

 

 BUY SOUDAPRIM DP ONLINE

BOSTIK

Bostik ‘Substrate to Surface’ waterproofing solutions have been developed with the needs of the water proofer in mind and offer a trusted, high performance membrane solutions for commercial and residential bathrooms, showers, laundries, swimming pools and more.

Product lines currently featured in the Bostik Dampfix waterproofing range include:

DAMPFIX GOLD

Dampfix Gold is a waterbased, fibre reinforced polyurethane membrane.

It's ideal for showers, bathrooms and other wet areas as well as providing a waterproof base for tiling. It is not designed for surfaces subject to constant immersion such as swimming pools.

 

BUY BOSTIK DAMPFIX ONLINE

DAMPFIX PU GREY

Dampfix PU is a one component, class 3, PU waterproofing membrane.

Use between the structural substrate & the reinforced un-bonded tile screed in both internal & external applications.

Can also be used as a waterproofing membrane to internal wet area shower, bathroom, kitchen, laundry & toilet areas to AS/NZ 3740.

 

BUY BOSTIK DAMPFIX PU ONLINE

DAMPFIX IMMERSED

Dampfix Immersed is a 2 Part, acrylic modified cement-based, membrane – Rapid membrane for swimming pools.

Can also be used for exposed, trafficked roof applications. (Light traffic only).

 

BUY BOSTIK PRIMESEAL IMMERSED KIT ONLINE

Talk to the experts at No.1 Roofing and Building supplies about which is the right waterproofing membrane for you.

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