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Ask the Manufacturer: IDSystems


Housebuilder & Developer’s James Parker speaks to IDSystems’ David Clarke, to discover how the 2021 changes to Building Regulations have driven the specifi cation of better glazing systems for new build and retrofi t domestic projects.


HOW HAVE THE CHANGES TO PART L THERMAL REQUIREMENTS IMPROVED GLAZING SPECIFICATION? The tightening of Part L since 2021 has made thermal performance a core driver of glaing specifi cation rather than a secondary consideration. There is now a far greater focus on U-values, thermal bridging and whole-system performance, with glazing being recognised as a critical part of the building envelope. Improvements in glass technology mean that frames, rather than glass, are often the weakest point, which has driven better frame design and more considered system engineering.


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Overall, Part L has raised standards, retired older, poorer performing systems and pushed manufacturers to develop higher performance products without abandoning aesthetics.


HOW HAVE YOU SEEN SPECIFIER AWARENESS AMONG DEVELOPERS CHANGE OVER THE YEARS AROUND GLAZING SYSTEMS, EVIDENCED IN THE AUDIENCE RESEARCH WE’VE UNDERTAKEN? pecifi er awareness has increased signifi cantly over the past three to four years. We were part of research with Housebuilder & Developer that


showed relatively low awareness among housebuilders, including limited understanding of upcoming changes around Part L and Part O as well as the path to Future Homes Standard. Since then, knowledge levels have improved markedly. Developers, architects and housebuilders are now much more conscious of regulatory compliance, thermal performance and long-term implications of product choices. This awareness has fi ltered down from architects to developers and end clients, creating more educated and discerning customers who no longer simply replicate previous specifi cations for new proects


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