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What Is Lead Flashing, And Why Is It The Preferred Form Of Flashing?

Lead flashing in Sydney has been used for centuries to seal gaps around doors, windows and wall abutments. But what is lead flashing? It is an essential component of every roof, limiting rainwater ingress and protecting against the threats of mould, mildew, and decay. There are two types of flashing in general: When flashing is used to seal vulnerable places where a roof plane meets a vertical surface, such as at a solar panel, it is referred to as an apron. Step flashing is the second type, which is used where the roof meets brickwork. This could be a chimney or the junction between two conservatories. While there are other materials that can be used for flashing, lead is by far the most popular, and with good reason.

  •       Benefits of Lead Flashing
  1. Versatility
    Lead is a versatile material that can be moulded to match a variety of angles. It is naturally available in a variety of sizes and thicknesses as it has been the go-to flashing material for generations. These distinctions are generally referred to as ‘codes,’ and they make determining what type of lead flashing is necessary for any specific work a breeze.
  2. Durability
    Lead flashing in Sydney is often advertised with ten-year guarantees, and it is a well-known fact that it may survive hundreds of years without requiring much care. It is without a doubt one of the more durable alternatives, and if properly installed, will only require a bi-annual check for general wear and tear.
  3. Environmentally friendly
    While we are running out of places to mine lead, the substance is completely recyclable. In reality, the majority of lead used for flashing would have come from environmentally friendly sources, which is one of the reasons it is designated as an eco-product in the BRE Green Guide.
  •       Drawbacks of Lead Flashing

Unfortunately, nothing is flawless, including lead flashing in Sydney. Despite the fact that it is a long-lasting and reliable solution, there are a few things that can make the alternatives appear more enticing.

  1. The Cost
    There is a finite amount of lead in the world because it is a naturally occurring substance, and as with any situation where demand exceeds supply, the price of lead flashing has risen dramatically over time. There is a case to be made that the flashings will eventually pay for themselves due to their lifetime. However, this is largely reliant on the project’s scope and budget.
    Not only that, but because lead retains its worth, the flashing created by it might be a significantly more appealing target for thieves. While this is more typical on larger and older structures, such as churches, the possibility of it happening can be enough to put off potential purchasers.
  2. Lead Poisoning Levels
    It is well known that lead is harmful. As a result, suitable safety procedures must constantly be implemented to protect both inhabitants and builders. Wearing gloves and washing your hands, face, and other exposed areas with soap and water after working are all examples of this. It’s also a good idea to use patination oil to coat the lead.
  •       Alternatives to Lead Flashing

For some, these drawbacks have been sufficient to make them desire to search elsewhere. Fortunately, because of advancements in technology and manufacturing techniques, a wide range of lead flashing alternatives are now available. If you’re on the fence, here are a few options to consider.

  1. Polycarbonate Wall Flashing
    Polycarbonate wall flashing is ideal for use with polycarbonate sheeting, as the name implies. This roll of flashing is an incredibly strong adhesive tape that creates a tight, waterproof seal. Unlike lead, it has no resale value, making it unappealing to would-be burglars.
    It is quick and easy to install on a variety of construction materials, including masonry and can be shaped by hand for a variety of purposes because it is an adhesive.
  2. Cromar Leadax
    Cromar Leadax is a non-toxic alternative to lead that is less expensive while maintaining the same strength and durability. This alternative is 75% lighter, comes in a variety of widths, and is guaranteed to last 20 years, making it easier to handle and install.
    Leadex is made of non-toxic recycled polyvinyl butyral (PVB) – the same foil used in laminated glass – and has a similar appearance to lead. It may be used on both flat and pitched roofs and can be utilised with a variety of construction materials.
  •       What Is the Best Type of Roof Flashing Material to Use?

There’s a reason lead has remained the primary flashing material for so long. Nothing has been able to match it in terms of dependability and longevity thus far. Lead flashing in Sydney is still the recommended choice for big residential, commercial, or industrial buildings as long as proper safety precautions are implemented. As a result, you might be wondering, “When should I not use lead?”

If you are concerned about potential toxicity, are on a budget, or have a large quantity of polycarbonate glazing, the alternatives described above are likely to be a better option. These options would also be significantly more appropriate for smaller DIY projects, such as garden structures.

At the end of the day, flashing serves to protect your roof while also providing a neat appearance. These two characteristics should always be considered when selecting a material.

Disclaimer: This is a generic Information & post; content about the services can be changed from time to time as per your requirements and contract. To get the latest and updated information, contact us today or visit our website. 

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