Waterproofing is an essential portion of all aspects of building design and construction.
Water ingress accounts for a large proportion of building envelope failures and will usually require expensive repairs and remedial action.
Waterproof membranes are a critical section of residential house and commercial building practices whether you’re trying to stop water from escaping from your swimming pool or need to steer clear of the passage of water into walls and habitable areas.
Waterproofing membranes are generally based in the following:
Foundations and retaining walls
Bathrooms, wet areas, & pools
External walls, balconies & terraces
Roof decks and plant room floors
Car parking docks and lift pits
Australia’s climate, using its torrential downpours and high humidity, in addition to rising sea levels and increasing flooding events implies that installing adequate waterproofing membranes is crucial.
Water ingress can rot timber framing and flooring, rust pipes, crack concrete, undermine foundations and create dangerous mould problems.
Adequate waterproofing layers maintain your buildings safe and dry and minimize your heating bills at the same time.
Waterproof membranes also play a crucial role in restoration and repair projects. Heritage buildings and houses may be in danger from inundating as a result of poor design and changes in ground water levels.
Slumping foundations, damp basements, and mildew are typical signs of a water issue that requires attention.
There is a vast range of waterproof membranes available; some are multipurpose whilst others are made for highly specific applications.
BATHROOMS & SHOWERS
Wet areas for example bathrooms, showers and laundries can be a real challenge for ensuring timber framing & flooring, insulation materials, wires and internal cladding materials usually are not confronted with damaging water ingress.
The hazards water ingress with standard acrylic tray and wall showers is significant in its own right but becomes even more important if you need to purchase a wet area shower.
Even small quantities of moisture may damage some flooring products, particularly the particle board type, leading to swelling, popped joints and nails/ screws and ultimately the total degradation with the material.
A water-resistant membrane is vital in wet areas both for floors and walls. Coverings for example tiles or vinyl don't offer an adequate level of protection independently.
Just a recommended waterproof membrane can give you real reassurance.
POOLS & WATER TANKS
Waterproof membranes form a vital role in maintaining an excellent seal beneath and around pools, water tanks, and sewerage treatment tanks.
Waterproof membranes here have to be capable to withstand the enormous pressures involved with containing large volumes water.
WALL & Flooring
It may be particularly difficult to ensure a highly effective waterproof layer underneath tiles because a good adhesion is needed for screed.
Effective waterproofing is vital especially where tiles are widely-used in wet areas as the gaps between tiles can allow easy water ingress.
UV exposure can be a concern as well as for the need for a membrane that's works with safe normal water.
WALLS
Many cladding types and building designs may be prone to leaks specifically if the flashing's and drainage weren't done correctly.
This is either way older style and much 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.
FORMWORK
Waterproof membranes play an important role as both an obstacle 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.
ROOF
Modern flat roofs especially from the concrete type require careful application of an effective waterproof membrane.
This applies to balconies, terraces, and planter boxes, that frequently cause water ingress problems.
BALCONIES & TERRACES
Waterproof membranes are necessary here too as with all structure that extends at night building envelope.
Inadequate sealing against moisture penetration combined with significant load bearing properties of balconies make water ingress and damage a typical occurrence.
A waterproof membrane should cover not just the floor but in addition extend partway up adjoining walls to form an adequate barrier.
FLOORS
Damage from water is among the most common and expensive insurance jobs. Water leaks may damage floors over a prolonged period of time prior to damage becomes obvious.
Effective waterproof membranes are particularly crucial for floors underground (basements and car parks), in wet areas including bathrooms, and underneath pools and spas.
FOUNDATIONS
Foundations and basement areas commonly require some type of waterproof membrane. This runs specifically true for multi-storey buildings, sloping sites, and in older buildings where adequate drainage may not have been designed or that are part of your website.
Burst water pipes can also do significant damage below ground if basement and foundation level structures aren't protected by a waterproof membrane.
On many occasions these areas tend to be out of sight, out of mind and water seepage could cause considerable damage before it’s noticed including slumping foundations, cracked and bowed walls, rotting timbers, along with the development of unhealthy numbers of mould.
CONCRETE
Concrete buildings are surprisingly susceptible to water damage, especially modern flat roof designs where water can pool and accelerate the pace 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 can cause weak, crumbling concrete structures which allow water ingress further in the building envelope.
This type of damage can be very expensive to fix so the setting up the best waterproof membrane is critical.
WATERPROOFING MEMBRANE TYPES
Waterproof membranes can be found in a selection of types made for different applications and types of conditions.
Membranes must be flexible capable to expand and contract when temperature changes increase the risk for building surface to advance.
What type meets your requirements is determined by several factors. You might need to consider the following aspects:
UV exposure
Form of substrate
Experience of dirt & traffic
Size of place to be covered
Internal or external use
Storage of potable water
It’s crucial that you choose the right waterproof membrane material for the specific job and learn how to apply it.
Remember, the key causes of waterproof membrane failures are poor or inadequate preparation and incorrect product choice.
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