The updated Approved Documents L1 and L2 introduce important changes to how thermal performance is assessed and evidenced for windows and doorsets in England, with equivalent documents published for Wales.
This live webinar explains what’s changing, when it applies, and how different parts of the fenestration sector will be affected - or not affected - as the Future Homes Standard moves closer to implementation.
What we’ll cover:
- Overview of the Future Homes Standard and regulatory changes
- Approved Document L 2026: key technical updates
- Differences between England and Wales
- Implications for U‑Value calculation and declaration
- Which market segments are in scope
- Practical approaches to meeting the new requirements
- Independent certification and transparency
- How this connects to PAS 2000:2026 and proposed future changes to UK construction product regulations
Who should attend:
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Window and doorset system suppliers
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Fabricators and manufacturers
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Fenestration product suppliers
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Compliance, technical and regulatory professionals
What you’ll gain:
- Regulatory clarity
- Confidence in timelines and expectations
- Insight into transparent calculation and certification
- Opportunity to ask questions live
Speaker:
Mark Barsby is a Certification Technical Expert for windows and doors at BSI, with over 40 years’ experience in the fenestration industry.
Before joining BSI in 2018, Mark held senior technical roles at leading system houses including aluplast, Deceuninck and Veka, bringing deep practical knowledge of window and doorset design, fabrication and performance.
Mark will be speaking at our 1 July webinar on the new Approved Document L requirements and what they mean for U‑Value calculations across the sector.
