Explore our full range of LYSAGHT® steel profiles and building components. Designed for durability, performance, and architectural flexibility across residential, commercial, and industrial projects.
Learn about our legacy, our standards, and our commitment to quality. Backed by decades of expertise, we deliver steel solutions built on trust, accountability, and innovation.
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Foil underlays are a critical component of a well-performing roofing system. Installed beneath metal roofing, they help improve thermal comfort while providing an added layer of protection against moisture, dust, and condensation. Designed to work alongside steel roofing and walling systems, foil underlays assist in reducing heat transfer and help manage condensation within the roof space, supporting a more comfortable and durable building environment.
Suitable for residential, commercial, and industrial applications, foil underlays form part of a complete roofing solution when specified correctly.
- Helps reduce heat transfer through the roof
- Assists in managing condensation and moisture
- Provides an additional protective barrier beneath roofing
- Suitable for a wide range of building types
- Complements metal roofing systems as part of a complete solution
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If you’re planning a build or refining the details, our team is here to help. From product selection to performance considerations, we’ll guide you toward the right Lysaght solution with clarity and confidence.
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