The Shift Away From Traditional Lead Flashing in Australia
Roofing materials are changing as builders, contractors and trade professionals look for practical alternatives to traditional materials. One area seeing this change is roof flashing.
Lead flashing has been used for decades to help protect roof joints, penetrations and other areas from water entry. However, concerns around handling lead, weight, installation and environmental impact have encouraged the industry to consider alternative flashing materials.
This is where Aztec ProFlash® provides a modern option.
The ProFlash range includes ProFlash Flexi Rolls and ProFlash Collars, giving roofing professionals different solutions for different flashing applications.
While ProFlash Flexi Rolls are designed for flexible flashing applications, ProFlash Collars are particularly suited to areas such as pipe penetrations, where traditional lead flashing has commonly been used.
In this guide, we explain the difference between these products and why ProFlash can be a practical alternative to traditional lead flashing for suitable roofing applications in Australia.
What Is Lead Flashing?
Lead flashing is a flexible metal material traditionally used to prevent water from entering vulnerable areas of a roof.
It can be shaped around roof joints, edges, chimneys, pipes and other roof penetrations. Its flexibility has made it a popular flashing material for many years.
However, lead also has some drawbacks.
It is a heavy material and requires careful handling. Lead is also a heavy metal, which means installers need to consider appropriate handling and disposal practices.
Modern roofing projects are increasingly looking at alternative materials that are lightweight, flexible and easier to work with.
This has created greater interest in lead flashing alternatives in Australia, including modern synthetic flashing products such as ProFlash.
Introducing Aztec ProFlash®: A Modern Flashing Solution
Aztec ProFlash® is a modern flashing range designed to provide flexible solutions for different roofing and waterproofing applications.
Rather than offering just one product for every situation, the range includes different formats to suit different roof details.
ProFlash Flexi Rolls
ProFlash Flexi Rolls provide flexible flashing material that can be cut, shaped and installed for suitable roofing applications.
They are available in different widths, making them useful when contractors need flexible material for roof joints, edges and other areas requiring flashing.
ProFlash Collars
ProFlash Collars are designed for specific applications around pipe penetrations and similar roof details.
This makes them particularly relevant when comparing modern flashing solutions with traditional lead flashing used around pipes.
The key point is that Rolls and Collars serve different purposes. Contractors can choose the ProFlash product that best matches the specific roofing application.
How ProFlash Works as a Lead Flashing Alternative
A good flashing material needs to do more than cover a joint. It needs to help prevent water from entering vulnerable areas while working with the shape and movement of the roof.
ProFlash uses a flexible construction designed for roofing applications.
The ProFlash Flexi Roll uses:
- Isobutylene EPDM polymer
- Reinforced aluminium mesh
The EPDM polymer provides flexibility, while the reinforced aluminium mesh provides support and helps the material hold its shape.
This combination allows the material to be shaped around suitable roof details while providing a durable flashing solution.
ProFlash Collars provide a different approach. Instead of cutting and shaping a roll around a pipe, a purpose-designed collar can be used for suitable pipe penetration applications.
ProFlash Rolls vs ProFlash Collars: What’s the Difference?
Understanding the difference between these products is important when selecting the right flashing solution.
| Feature | ProFlash Flexi Rolls | ProFlash Collars |
| Product format | Flexible roll | Purpose-designed collar |
| Main use | Flexible flashing applications | Pipe penetrations and similar roof details |
| Installation | Cut and shape as required | Designed around the relevant penetration |
| Best suited for | Joints, edges and custom flashing applications | Sealing around pipes |
| Alternative to lead | Suitable for relevant flashing applications | Particularly relevant where lead flashing has traditionally been used around pipes |
The right choice depends on the roofing detail and installation requirements.
Flexi Rolls provide flexibility for a range of flashing applications, while ProFlash Collars provide a more specific solution for pipe penetrations.
Why Choose ProFlash Over Traditional Lead Flashing?
There are several reasons roofing professionals may consider modern flashing materials instead of traditional lead.
1. Lightweight and Easier to Handle
Lead is a heavy material. A lightweight flashing alternative can make transportation and handling easier on the job site.
ProFlash provides a lighter option for suitable roofing applications, helping contractors handle the material more easily during installation.
2. Flexible Construction
Flexibility is important when flashing needs to follow the shape of a roof or fit around a particular detail.
ProFlash Flexi Rolls can be cut and shaped for suitable applications, while ProFlash Collars provide a purpose-designed option for pipe penetrations.
3. Designed for Roofing Applications
ProFlash products are designed specifically for roofing and waterproofing applications.
This gives contractors different options depending on the roof detail they need to seal.
4. Suitable for Australian Conditions
Australian roofs can experience strong sunlight, heat, rain and changing weather conditions.
ProFlash is designed for use in roofing environments where weather exposure is an important consideration.
5. A Modern Alternative to Lead
The move toward alternative flashing materials is part of a wider change in construction.
ProFlash provides contractors with modern flashing options without relying solely on traditional lead materials.
Waterproofing: Why the Right Flashing Matters
The main purpose of roof flashing is to help manage water around areas where the roof is vulnerable to leaks.
Poorly sealed roof joints and penetrations can allow water to enter the building. Over time, this can contribute to moisture problems, internal water damage and deterioration of surrounding materials.
ProFlash provides flashing solutions for different roofing details.
Flexi Rolls
ProFlash Flexi Rolls can be used for suitable applications such as:
- Roof joints
- Roof edges
- Wall junctions
- Custom flashing areas
- Other areas requiring flexible flashing material
ProFlash Collars
ProFlash Collars are designed for suitable applications around:
- Pipe penetrations
- Roof penetrations
- Areas around pipes requiring flashing
Using the right product for the right application helps create a suitable weatherproofing solution.
Contractors should always follow the manufacturer’s installation instructions and project requirements.
Where Can ProFlash Be Used?
One advantage of having both rolls and collars within the ProFlash range is that contractors have options for different roofing details.
ProFlash Flexi Rolls Can Be Used For Suitable Applications Such As:
- Roof tile flashing
- Roof edges
- Wall joints
- Roof junctions
- Custom flashing requirements
- Other areas requiring flexible flashing
ProFlash Flexi Rolls are available in different sizes, including:
- 280 mm
- 370 mm
- 560 mm
- Mini Roll
Different widths can help contractors select a suitable roll for the job.
ProFlash Collars Are Designed For Suitable Applications Such As:
- Pipe penetrations
- Roof penetrations
- Sealing around pipes
- Flashing details where a purpose-designed collar is suitable
This makes ProFlash more than just a roll-based flashing system. It provides different product formats for different roofing requirements.
ProFlash and Australian Roofing Standards
Compliance is an important consideration when selecting construction materials.
Aztec ProFlash® Flexi Roll complies with AS/NZS 2904:1995 – Damp-proof courses and flashings.
This Australian and New Zealand standard relates to damp-proof courses and flashing materials.
For plumbing supply stores, roofing wholesalers and trade distributors, compliance information can help contractors make informed product decisions.
As with any construction product, installers should check the specific product documentation, installation requirements and applicable building requirements for each project.
Why ProFlash Is a Practical Choice for Wholesalers and Trade Suppliers
ProFlash is not only relevant to individual roofing contractors. It can also provide value for businesses supplying roofing and plumbing products to the trade.
Plumbing supply stores, roofing wholesalers and trade distributors need products that meet the changing needs of their customers.
Modern alternatives to traditional materials can create new opportunities within the trade supply chain.
The ProFlash range provides different formats for different applications, including:
- Flexi Rolls for flexible flashing requirements
- ProFlash Collars for suitable pipe penetration applications
- Multiple roll widths for different project requirements
- Modern alternatives to traditional lead-based flashing materials
Offering a broader flashing range can also make it easier for trade customers to find an appropriate product for the job.
Safety and Environmental Considerations
Lead is a heavy metal, so handling it requires appropriate care.
This is one reason why many construction professionals are considering alternative materials where suitable.
ProFlash provides a modern option that does not rely on lead as the primary flashing material. Its lightweight construction can also make handling easier compared with traditional lead flashing.
For businesses focused on modern construction practices, choosing alternative materials can support broader efforts to reduce reliance on traditional materials where suitable alternatives are available.
However, product selection should always be based on the application, installation requirements and relevant project specifications.
Choosing Between ProFlash Rolls and Collars
Not sure which ProFlash product is more suitable?
A simple way to think about the range is:
Need flexible flashing material for a roof detail?
→ Consider ProFlash Flexi Roll for suitable applications.
Need a flashing solution around a pipe penetration?
→ Consider a ProFlash Collar where the product is suitable for the application.
This distinction is important because the two products are designed for different purposes.
Rather than treating every flashing requirement in the same way, contractors can select a ProFlash product based on the specific roof detail.
Frequently Asked Questions
What is ProFlash used for?
ProFlash is a range of modern flashing products designed for suitable roofing and waterproofing applications. The range includes Flexi Rolls and ProFlash Collars for different roof details.
What is the difference between ProFlash Rolls and ProFlash Collars?
ProFlash Flexi Rolls are flexible flashing materials that can be cut and shaped for suitable applications. ProFlash Collars are purpose-designed for applications around pipe penetrations and similar roof details.
Are ProFlash Collars an alternative to lead flashing?
ProFlash Collars can provide a modern alternative for suitable applications around pipe penetrations where traditional lead flashing may have been used. The correct product should always be selected based on the application and manufacturer’s requirements.
When should I use a ProFlash Flexi Roll?
Flexi Rolls are suitable for applications where flexible flashing material needs to be cut, shaped and installed around appropriate roof details, such as certain joints and edges.
Can ProFlash be used on different types of roofs?
ProFlash products can be used for suitable applications across different roofing systems. The correct product and installation method will depend on the roof type and specific application.
Does ProFlash comply with Australian standards?
The Aztec ProFlash® Flexi Roll complies with AS/NZS 2904:1995 – Damp-proof courses and flashings. Contractors should also check current project requirements and product documentation before installation.
Why are contractors looking for alternatives to lead flashing?
Lead is heavy and requires careful handling. Concerns around lead and the availability of modern flashing materials have encouraged contractors to consider alternative products for suitable roofing applications.
Are ProFlash products suitable for pipe penetrations?
ProFlash Collars are specifically designed for suitable applications around pipe penetrations. This makes them particularly relevant when selecting an alternative to traditional lead flashing around pipes.
Conclusion: A Modern Approach to Roofing Flashing
Traditional lead flashing has played an important role in roofing for many years. However, modern construction projects now have access to alternative materials designed for different flashing requirements.
Aztec ProFlash® provides a flexible range of solutions, including ProFlash Flexi Rolls and ProFlash Collars.
Flexi Rolls provide flexible flashing material for suitable roof joints, edges and other applications, while ProFlash Collars provide a purpose-designed solution for suitable pipe penetration applications.
This distinction is important. Rather than treating ProFlash Rolls and Collars as the same product, contractors can choose the option that matches the specific roofing detail.
For roofing contractors, builders, plumbing supply stores and trade distributors, ProFlash offers a modern approach to flashing that focuses on flexibility, practical installation and suitable roofing performance.
As the Australian construction industry continues to look for alternatives to traditional materials, ProFlash provides modern flashing options for today’s roofing requirements.
