Newly certified Manufacturers Certification criteria

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Window frames

Window frames are a key component of high-performance windows, whether operable or fixed, single or multi-part units. In addition to carrying structural loads and ensuring airtight operation, the frame protects the glazing edge bond and contributes to the durability and long-term performance of the insulated glazing unit. Thermally optimized window frames with low Uf-values reduce heat loss and minimize thermal bridges at the glass edge and at junctions with the wall. Properly designed frames allow the insulation layer of the building envelope to continue seamlessly around the opening, supporting high interior surface temperatures, improved thermal comfort and condensation-free performance in energy-efficient and Passive House buildings.

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Manufacturers

Window system phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Sep 2019 Inward opening
Window system phB Timber 0.80 W/(m2K) Cool, temperate Sep 2019 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Feb 2023 Inward opening
Fixed phA GFRP 0.79 W/(m2K) Cool, temperate Oct 2020 -
Operable phB GFRP 0.80 W/(m2K) Cool, temperate Oct 2020 Inward opening
Fixed phA+ GFRP 0.80 W/(m2K) Cool, temperate Feb 2025 -
Operable phA GFRP 0.79 W/(m2K) Cool, temperate Dec 2024 Outward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate May 2015 Inward opening
Operable phC PVC 0.80 W/(m2K) Cool, temperate May 2026 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate May 2026 Inward opening
Operable phB Timber / aluminium 0.97 W/(m2K) Warm, temperate Nov 2023 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Jan 2017 Inward opening
Operable phB Timber 0.99 W/(m2K) Warm, temperate Nov 2023 Inward opening
Operable phB GFRP 0.79 W/(m2K) Cool, temperate Mar 2019 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Oct 2024 Inward opening
Operable phB PVC 1.00 W/(m2K) Warm, temperate Oct 2018 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Jan 2021 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate May 2018 Inward opening
Operable phB PVC 0.78 W/(m2K) Cool, temperate Sep 2017 Inward opening
Operable phC Aluminium 0.77 W/(m2K) Cool, temperate Jan 2026 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Sep 2021 Inward opening
Operable phC Aluminium 0.75 W/(m2K) Cool, temperate Oct 2020 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate May 2020 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Feb 2021 Inward opening
Operable phB Aluminium 1.00 W/(m2K) Warm, temperate Sep 2022 Inward opening
Operable phC Timber / aluminium 0.99 W/(m2K) Warm, temperate Aug 2020 Inward opening
Operable phB PVC 0.78 W/(m2K) Cool, temperate Dec 2017 Inward opening
Operable phB Aluminium 0.76 W/(m2K) Cool, temperate Jun 2025 Inward opening
Window system phB PVC 0.99 W/(m2K) Warm, temperate May 2023 Inward opening
Operable phA Timber / aluminium 0.78 W/(m2K) Cool, temperate May 2011 Inward opening
Connection phB Timber / aluminium 0.63 W/(m2K) Cold May 2023 Inward opening
Operable phB Timber / aluminium 1.00 W/(m2K) Warm, temperate Mar 2024 Inward opening
Window system phC PVC 1.00 W/(m2K) Warm, temperate Apr 2020 Inward opening
Window system phB PVC 0.81 W/(m2K) Cool, temperate Mar 2020 Inward opening
Operable phB PVC 0.98 W/(m2K) Warm, temperate Jun 2026 -
Operable phC PVC 1.00 W/(m2K) Warm, temperate Nov 2025 Inward opening
Fixed phB Aluminium 0.79 W/(m2K) Cool, temperate Feb 2026 -
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Dec 2025 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Jun 2023 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Mar 2018 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Jun 2021 Inward opening
Operable phB Timber 1.00 W/(m2K) Warm, temperate Apr 2021 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Mar 2026 Inward opening
Window system phB PVC 0.80 W/(m2K) Cool, temperate Jul 2026 Inward opening
Window system phB PVC 0.95 W/(m2K) Warm, temperate Jul 2026 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Mar 2020 Inward opening
Operable phC Aluminium 0.76 W/(m2K) Cool, temperate Jun 2023 Inward opening
Operable phC Aluminium 0.97 W/(m2K) Warm, temperate Jun 2023 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Dec 2012 Inward opening
Operable phB Aluminium 0.76 W/(m2K) Cool, temperate Oct 2024 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jul 2022 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Dec 2014 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Jul 2022 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Nov 2024 Inward opening
Operable phA Timber / aluminium 0.80 W/(m2K) Cool, temperate Mar 2022 Inward opening
Fixed phA Timber / aluminium 0.80 W/(m2K) Cool, temperate Mar 2022 -
Operable phB Timber 0.80 W/(m2K) Cool, temperate Mar 2016 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Mar 2016 Inward opening
Operable phB GFRP 0.80 W/(m2K) Cool, temperate Nov 2025 Inward opening
Operable phB GFRP 0.80 W/(m2K) Cool, temperate Nov 2025 Inward opening
Operable phB Timber 0.78 W/(m2K) Cool, temperate Jan 2026 Inward opening
Operable phB Timber / aluminium 1.00 W/(m2K) Warm, temperate Mar 2024 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Jun 2024 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate May 2017 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Oct 2020 Inward opening
Operable phB Timber 0.78 W/(m2K) Cool, temperate Nov 2013 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Feb 2020 Inward opening
Fixed phA Timber / aluminium 0.78 W/(m2K) Cool, temperate Feb 2020 -
Operable phB Timber / aluminium 1.00 W/(m2K) Warm, temperate Jun 2016 Inward opening
Operable phC Timber / aluminium 1.00 W/(m2K) Warm, temperate Jun 2017 Inward opening
Fixed phA GFRP 0.77 W/(m2K) Cool, temperate Jul 2018 -
Operable phB GFRP 0.80 W/(m2K) Cool, temperate Mar 2018 Inward opening
Operable phB Aluminium 1.20 W/(m2K) Warm May 2026 Inward opening
Window system phB PVC 1.00 W/(m2K) Warm, temperate Jul 2018 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Jun 2023 Inward opening
Window system phC PVC 0.99 W/(m2K) Warm, temperate Jul 2018 Inward opening
Operable phB Aluminium 0.78 W/(m2K) Cool, temperate May 2019 Inward opening
Operable phC PVC 0.80 W/(m2K) Cool, temperate Apr 2017 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Nov 2020 Inward opening
Operable phC Aluminium 0.97 W/(m2K) Warm, temperate Oct 2018 Inward opening
Operable phC Aluminium 0.97 W/(m2K) Warm, temperate Nov 2021 Inward opening
Operable phB Timber / aluminium 1.00 W/(m2K) Warm, temperate Aug 2019 Inward opening
Fixed phA PVC 0.75 W/(m2K) Cool, temperate May 2021 -
Operable phC PVC 0.79 W/(m2K) Cool, temperate Aug 2021 Inward opening
Operable phB PVC 0.77 W/(m2K) Cool, temperate Jul 2021 Inward opening
Fixed phA PVC 0.59 W/(m2K) Cold Apr 2021 -
Operable phA PVC 0.60 W/(m2K) Cold Jul 2022 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Oct 2024 Inward opening
Fixed phA Aluminium 0.78 W/(m2K) Cool, temperate Oct 2024 -
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Jul 2025 Inward opening
Operable In Progress Aluminium 1.00 W/(m2K) Warm, temperate Dec 2024 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Jul 2025 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Sep 2024 Inward opening
Fixed phA Aluminium 0.76 W/(m2K) Cool, temperate Oct 2024 -
Operable phA Timber / aluminium 0.78 W/(m2K) Cool, temperate Mar 2012 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Mar 2012 Inward opening
Operable phB Aluminium 1.00 W/(m2K) Warm, temperate Jul 2024 Inward opening
Operable phB Aluminium 0.77 W/(m2K) Cool, temperate Oct 2014 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Sep 2019 Inward opening
Operable phB Timber 1.00 W/(m2K) Warm, temperate Apr 2021 Inward opening
Operable phB Aluminium 0.77 W/(m2K) Cool, temperate Apr 2014 Inward opening
Operable phB Aluminium 1.00 W/(m2K) Warm, temperate Aug 2025 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Apr 2022 Inward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Jan 2018 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Aug 2020 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Jul 2020 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Jun 2021 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jun 2021 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jun 2021 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jun 2021 Inward opening
Window system phB PVC 0.80 W/(m2K) Cool, temperate Nov 2022 Inward opening
Window system phB PVC 0.80 W/(m2K) Cool, temperate Jul 2023 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Mar 2013 Inward opening
Window system phB Timber 1.00 W/(m2K) Warm, temperate Jul 2023 Inward opening
Connection phA+ PVC / aluminium 0.42 W/(m2K) Arctic Jul 2019 -
Window system phA Timber / aluminium 0.60 W/(m2K) Cold Mar 2018 Inward opening
Operable phB Aluminium 0.75 W/(m2K) Cool, temperate Sep 2019 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Aug 2024 Inward opening
Operable phB Aluminium 0.68 W/(m2K) Cool, temperate Feb 2021 Inward opening
Operable phB Aluminium 1.00 W/(m2K) Warm, temperate Nov 2019 Inward opening
Operable phB Timber 1.00 W/(m2K) Warm, temperate Jun 2016 Inward opening
Window system phB PVC / aluminium 1.00 W/(m2K) Warm, temperate Mar 2026 Inward opening
Operable phB Aluminium 0.77 W/(m2K) Cool, temperate Oct 2023 Inward opening
Operable phB Timber / aluminium 0.99 W/(m2K) Warm, temperate Aug 2017 Inward opening
Operable phC Aluminium 0.99 W/(m2K) Warm, temperate Mar 2019 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Feb 2016 Inward opening
Operable phB GFRP 0.78 W/(m2K) Cool, temperate Jul 2025 Inward opening
Operable phB PVC 1.00 W/(m2K) Warm, temperate Aug 2019 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Nov 2012 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Dec 2012 Inward opening
Operable phA Timber / aluminium 0.79 W/(m2K) Cool, temperate Nov 2013 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Aug 2021 Inward opening
Operable phB Aluminium 0.95 W/(m2K) Warm, temperate Oct 2021 Inward opening
Operable phB Timber / aluminium 0.76 W/(m2K) Cool, temperate Feb 2020 Inward opening
Connection phB - 0.62 W/(m2K) Cold Feb 2020 -
Operable phB PVC 0.78 W/(m2K) Cool, temperate Oct 2016 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Nov 2020 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Aug 2022 Inward opening
Fixed phA Aluminium 0.79 W/(m2K) Cool, temperate Aug 2022 -
Operable phB GFRP 0.99 W/(m2K) Warm, temperate Sep 2025 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Aug 2023 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Dec 2022 Inward opening
Operable phA GFRP 0.75 W/(m2K) Cool, temperate Jul 2018 Inward opening
Connection phA GFRP 0.63 W/(m2K) Cold Jul 2018 -
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Sep 2019 Inward opening
Operable phB Aluminium 0.78 W/(m2K) Cool, temperate Jul 2022 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Nov 2019 Inward opening
Operable phB Timber 0.99 W/(m2K) Warm, temperate Jun 2023 Inward opening
Operable phC PVC 0.99 W/(m2K) Warm, temperate Oct 2020 Inward opening
Fixed phA+ Timber / aluminium 0.76 W/(m2K) Cool, temperate Jul 2014 -
Operable phA Timber / aluminium 0.80 W/(m2K) Cool, temperate Jul 2014 Outward opening
Operable phA Timber / aluminium 0.73 W/(m2K) Cool, temperate Mar 2014 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Feb 2016 Inward opening
Operable phB Aluminium 0.79 W/(m2K) Cool, temperate Sep 2023 Inward opening
Operable phB Aluminium 0.95 W/(m2K) Warm, temperate Sep 2023 Inward opening
Operable phB Aluminium 0.97 W/(m2K) Warm, temperate Feb 2024 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate May 2022 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Apr 2022 Inward opening
Operable phB Timber 1.00 W/(m2K) Warm, temperate Apr 2024 Inward opening
Operable phB Timber 0.97 W/(m2K) Warm, temperate Nov 2018 Inward opening
Operable phC PVC 0.99 W/(m2K) Warm, temperate May 2025 Inward opening
Operable phB PVC 0.98 W/(m2K) Warm, temperate May 2025 Inward opening
Operable phC Aluminium 0.99 W/(m2K) Warm, temperate Dec 2025 Inward opening
Operable phB Timber 0.99 W/(m2K) Warm, temperate Jun 2020 Inward opening
Fixed phA Steel / aluminium 0.80 W/(m2K) Cool, temperate Apr 2017 -
Operable phB Aluminium 1.00 W/(m2K) Warm, temperate Jul 2024 Inward opening
Operable phB PVC / aluminium 0.80 W/(m2K) Cool, temperate Mar 2020 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Feb 2024 Inward opening
Operable phB - 1.00 W/(m2K) Warm, temperate Apr 2025 Inward opening
Window system phB PVC 0.80 W/(m2K) Cool, temperate Mar 2022 Inward opening
Window system phB PVC / aluminium 0.80 W/(m2K) Cool, temperate Mar 2022 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Jul 2016 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Apr 2022 Inward opening
Operable phB PVC 0.78 W/(m2K) Cool, temperate Jan 2018 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Feb 2020 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Oct 2025 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Mar 2017 Inward opening
Operable phB Timber / aluminium 0.99 W/(m2K) Warm, temperate Mar 2017 Inward opening
Operable phB Aluminium 0.98 W/(m2K) Warm, temperate Jul 2026 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Feb 2022 Inward opening
Operable phB PVC 1.00 W/(m2K) Warm, temperate Dec 2023 Inward opening
Operable phC PVC 0.99 W/(m2K) Warm, temperate Dec 2021 Inward opening
Operable phA Timber 0.79 W/(m2K) Cool, temperate Apr 2013 Inward opening
Operable phC Aluminium 0.76 W/(m2K) Cool, temperate Feb 2024 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Dec 2019 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Nov 2019 Outward opening
Operable phC Timber / aluminium 1.20 W/(m2K) Warm Sep 2017 Inward opening
Operable phC Timber / aluminium 1.00 W/(m2K) Warm, temperate Jul 2017 Inward opening
Operable phA Timber / aluminium 0.78 W/(m2K) Cool, temperate Jan 2025 Inward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Apr 2016 Inward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Dec 2021 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jan 2022 Inward opening
Operable phC Timber 1.00 W/(m2K) Warm, temperate Feb 2018 Inward opening
Operable phB Aluminium 0.76 W/(m2K) Cool, temperate May 2014 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Feb 2014 Inward opening
Operable phB Timber 1.00 W/(m2K) Warm, temperate Sep 2020 Inward opening
Operable phB Aluminium 0.97 W/(m2K) Warm, temperate Aug 2025 Inward opening
Fixed phA Aluminium 0.95 W/(m2K) Warm, temperate Aug 2025 -
Operable phB Timber / aluminium 0.77 W/(m2K) Cool, temperate Aug 2016 Inward opening
Operable phC Aluminium 0.78 W/(m2K) Cool, temperate Feb 2024 Inward opening
Window system phB PVC 1.00 W/(m2K) Warm, temperate Jul 2023 Inward opening
Operable phC Aluminium 0.77 W/(m2K) Cool, temperate Apr 2026 Inward opening
Operable phB Timber / aluminium 0.99 W/(m2K) Warm, temperate Jun 2023 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Dec 2020 Inward opening
Operable phB Timber 0.78 W/(m2K) Cool, temperate Jan 2018 Inward opening
Operable phB Timber 0.79 W/(m2K) Cool, temperate Mar 2014 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Jul 2018 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Feb 2026 Inward opening
Operable phC PVC 0.80 W/(m2K) Cool, temperate Feb 2026 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Feb 2022 Inward opening
Operable phB Timber 0.80 W/(m2K) Cool, temperate May 2008 Inward opening
Operable phC Aluminium 0.97 W/(m2K) Warm, temperate Aug 2023 Outward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Oct 2015 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Mar 2024 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Nov 2011 Outward opening
Operable phB Timber / aluminium 0.77 W/(m2K) Cool, temperate Feb 2013 Inward opening
Fixed phA Timber / PVC 0.74 W/(m2K) Cool, temperate Jul 2020 -
Operable phB PVC / aluminium 0.80 W/(m2K) Cool, temperate Dec 2012 Outward opening
Fixed phA PVC / aluminium 0.80 W/(m2K) Cool, temperate May 2020 -
Fixed phA PVC 0.59 W/(m2K) Cold Aug 2024 -
Operable phA PVC 0.60 W/(m2K) Cold Oct 2024 Inward opening
Fixed phA PVC 0.77 W/(m2K) Cool, temperate Aug 2025 -
Operable phB PVC 0.77 W/(m2K) Cool, temperate Jul 2024 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Jul 2018 Inward opening
Operable phC Timber / aluminium 0.80 W/(m2K) Cool, temperate Apr 2019 Inward opening
Operable phC Timber / aluminium 0.80 W/(m2K) Cool, temperate Apr 2019 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Jul 2023 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Jul 2022 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Feb 2022 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Jan 2014 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Mar 2022 Inward opening
Fixed In Progress Timber / aluminium - Cool, temperate Mar 2022 -
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate May 2015 Inward opening
Operable phC Timber / aluminium 1.20 W/(m2K) Warm Sep 2023 Inward opening
Operable phA PVC 0.77 W/(m2K) Cool, temperate Aug 2011 Outward opening
Fixed phA PVC 0.74 W/(m2K) Cool, temperate Aug 2020 -
Operable phB PVC 0.75 W/(m2K) Cool, temperate Mar 2013 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Aug 2023 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Jun 2024 Inward opening
Operable phB Timber / aluminium 0.77 W/(m2K) Cool, temperate Jul 2024 Inward opening
Fixed phA Timber / aluminium 0.75 W/(m2K) Cool, temperate Jul 2024 Inward opening
Operable phA Timber / aluminium 0.60 W/(m2K) Cold Jul 2024 Inward opening
Fixed phA Timber / aluminium 0.60 W/(m2K) Cold Jul 2024 Inward opening
Operable phA Timber 0.79 W/(m2K) Cool, temperate Apr 2014 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Apr 2024 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Aug 2019 Inward opening
Operable phB Aluminium 0.95 W/(m2K) Warm, temperate Jul 2024 Inward opening
Fixed phA Aluminium 0.92 W/(m2K) Warm, temperate Jul 2024 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Feb 2021 Inward opening
Operable phB Timber / aluminium 0.77 W/(m2K) Cool, temperate Nov 2020 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Dec 2024 Inward opening
Operable phA Timber / GFRP 0.78 W/(m2K) Cool, temperate Aug 2012 Inward opening
Operable phA Timber / aluminium 0.79 W/(m2K) Cool, temperate Apr 2013 Inward opening
Window system phB PVC 1.00 W/(m2K) Warm, temperate Apr 2019 Inward opening
Operable In Progress PVC 0.98 W/(m2K) Warm, temperate Nov 2019 Inward opening
Fixed phC PVC 0.94 W/(m2K) Warm, temperate Nov 2019 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Nov 2019 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Mar 2022 Inward opening
Operable phB PVC / aluminium 1.20 W/(m2K) Warm Apr 2022 Inward opening
Operable phB PVC 1.20 W/(m2K) Warm Nov 2022 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Jun 2024 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Feb 2022 Inward opening
Operable phC Aluminium 1.19 W/(m2K) Warm Oct 2017 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Jun 2016 Inward opening
Operable phB PVC 0.96 W/(m2K) Warm, temperate Oct 2018 Inward opening
Operable phA Timber / aluminium 0.80 W/(m2K) Cool, temperate Apr 2013 Inward opening
Operable phB PVC 0.99 W/(m2K) Warm, temperate Sep 2021 Inward opening
Operable phB GFRP 0.79 W/(m2K) Cool, temperate Mar 2025 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Oct 2018 Inward opening
Operable phB PVC / aluminium 0.80 W/(m2K) Cool, temperate Mar 2026 Inward opening
Operable phB Timber 1.00 W/(m2K) Warm, temperate Dec 2020 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Aug 2023 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jul 2022 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Nov 2017 Inward opening
Operable phB Aluminium 0.71 W/(m2K) Cool, temperate Aug 2020 Inward opening
Operable phB Aluminium 0.82 W/(m2K) Very hot Jan 2021 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Jul 2025 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Sep 2023 Inward opening
Operable phB Aluminium 0.77 W/(m2K) Cool, temperate Nov 2023 Inward opening
Window system phC PVC 1.01 W/(m2K) Warm, temperate Jan 2026 Inward opening
Window system phC PVC 1.00 W/(m2K) Warm, temperate Apr 2021 Inward opening
Window system phB PVC 0.78 W/(m2K) Cool, temperate Jan 2019 Inward opening
Operable phC PVC 1.20 W/(m2K) Warm Apr 2022 Inward opening
Operable phA PVC / aluminium 0.79 W/(m2K) Cool, temperate Mar 2025 Outward opening
Operable phA PVC / aluminium 0.80 W/(m2K) Cool, temperate May 2025 Outward opening
Operable phA PVC 0.60 W/(m2K) Cold Nov 2025 Outward opening
Fixed phA PVC / aluminium 0.80 W/(m2K) Cool, temperate Mar 2025 -
Fixed phA PVC / aluminium 0.80 W/(m2K) Cool, temperate Jun 2025 -
Fixed phA+ PVC 0.60 W/(m2K) Cold May 2026 -
Operable phB PVC 0.79 W/(m2K) Cool, temperate Jul 2016 Inward opening
Operable phB GFRP 0.80 W/(m2K) Cool, temperate May 2026 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Oct 2020 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Nov 2019 Inward opening
Operable phC Aluminium 0.78 W/(m2K) Cool, temperate Apr 2021 Inward opening
Window system phA Timber / aluminium 0.78 W/(m2K) Cool, temperate Mar 2025 Inward opening
Operable phA Timber / aluminium 0.60 W/(m2K) Cold Aug 2022 Inward opening
Window system phA Timber / aluminium 0.78 W/(m2K) Cool, temperate Aug 2022 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Apr 2024 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate May 2016 Inward opening
Operable phA Timber / aluminium 0.76 W/(m2K) Cool, temperate Aug 2016 Inward opening
Connection phB Timber / aluminium 0.64 W/(m2K) Cold Aug 2016 -
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Dec 2021 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Apr 2026 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate May 2018 Inward opening
Connection phB Timber / aluminium 0.63 W/(m2K) Cold May 2023 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate May 2023 Inward opening
Window system phC PVC 0.99 W/(m2K) Warm, temperate Dec 2019 Inward opening
Window system phB PVC 0.80 W/(m2K) Cool, temperate Jan 2024 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Apr 2015 Inward opening
Operable phA Timber / aluminium 0.77 W/(m2K) Cool, temperate Feb 2025 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Jul 2017 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Nov 2023 Outward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Jun 2021 Inward opening
Window system phB PVC 1.00 W/(m2K) Warm, temperate May 2025 Inward opening
Operable phC Aluminium 0.78 W/(m2K) Cool, temperate Apr 2023 Inward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Jul 2020 Inward opening
Fixed phA Timber / aluminium 0.78 W/(m2K) Cool, temperate Jul 2012 -
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Jul 2020 Inward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Jul 2020 Inward opening
Operable phB Timber / aluminium 0.76 W/(m2K) Cool, temperate Jul 2016 Inward opening
Connection phA Timber / aluminium 0.62 W/(m2K) Cold Jul 2016 -
Operable phB Timber / aluminium 0.73 W/(m2K) Cool, temperate Jun 2011 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jun 2025 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Jul 2025 Inward opening
Operable In Progress Aluminium 1.00 W/(m2K) Warm, temperate Dec 2024 Inward opening
Operable phB Aluminium 0.78 W/(m2K) Cool, temperate Jun 2017 Inward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Feb 2013 Inward opening
Operable phC Aluminium 1.19 W/(m2K) Hot Aug 2025 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Oct 2014 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Sep 2016 Inward opening
Operable phB GFRP 0.80 W/(m2K) Cool, temperate Dec 2020 Inward opening
Fixed phA PVC 0.77 W/(m2K) Cool, temperate Aug 2025 -
Operable phB PVC 0.80 W/(m2K) Cool, temperate Nov 2023 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Dec 2023 Outward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Sep 2021 Inward opening
Operable phB Timber 0.79 W/(m2K) Cool, temperate Jan 2006 Inward opening
Operable phA Timber / aluminium 0.99 W/(m2K) Warm, temperate May 2020 Inward opening
Operable phB Timber / aluminium 1.00 W/(m2K) Warm, temperate Mar 2026 Inward opening
Operable phB Timber 0.98 W/(m2K) Warm, temperate Mar 2026 Inward opening
Operable phB Timber 1.18 W/(m2K) Warm Feb 2021 Inward opening
Operable phB Timber / aluminium 1.00 W/(m2K) Warm, temperate Jan 2016 Inward opening
Operable phC Timber 1.20 W/(m2K) Warm Apr 2025 Inward opening
Operable phA Timber 0.80 W/(m2K) Cool, temperate Apr 2025 Inward opening
Operable phA Timber 0.96 W/(m2K) Warm, temperate Apr 2025 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate Feb 2014 Outward opening
Operable phB Timber / aluminium 0.78 W/(m2K) Cool, temperate Jul 2014 Inward opening
Operable phC Aluminium 0.78 W/(m2K) Cool, temperate Sep 2017 Inward opening
Operable phA Aluminium 0.79 W/(m2K) Cool, temperate Nov 2022 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Jun 2025 Inward opening
Operable phC Aluminium 0.80 W/(m2K) Cool, temperate Feb 2021 Inward opening
Fixed phA PVC 0.79 W/(m2K) Cool, temperate Nov 2018 -
Operable phB PVC 0.80 W/(m2K) Cool, temperate Oct 2018 Inward opening
Operable phB Aluminium 0.79 W/(m2K) Cool, temperate Mar 2024 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Mar 2019 Inward opening
Operable In Progress Aluminium 1.00 W/(m2K) Warm, temperate Dec 2024 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Jan 2015 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Jul 2025 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Dec 2024 Inward opening
Operable phC Aluminium 0.79 W/(m2K) Cool, temperate Dec 2024 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Feb 2025 Inward opening
Operable phC PVC 1.00 W/(m2K) Warm, temperate Dec 2015 Inward opening
Operable phB Timber / aluminium 0.80 W/(m2K) Cool, temperate May 2019 Inward opening
Fixed phA Aluminium 0.76 W/(m2K) Cool, temperate Jan 2024 -
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Nov 2023 Inward opening
Operable phC Aluminium 0.78 W/(m2K) Cool, temperate Jan 2024 Inward opening
Operable phB Aluminium 0.80 W/(m2K) Cool, temperate Apr 2023 Inward opening
Operable phB Aluminium 0.78 W/(m2K) Cool, temperate Jan 2026 Inward opening
Operable phC Aluminium 1.00 W/(m2K) Warm, temperate Aug 2022 Inward opening
Operable phB Aluminium 0.77 W/(m2K) Cool, temperate Aug 2023 Inward opening
Operable phB PVC / aluminium 0.80 W/(m2K) Cool, temperate Oct 2025 Inward opening
Operable phB Timber / aluminium 0.79 W/(m2K) Cool, temperate Mar 2024 Inward opening
Operable phA Timber 0.68 W/(m2K) Cool, temperate Sep 2019 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Dec 2016 Outward opening
Fixed phA+ PVC 0.75 W/(m2K) Cool, temperate Dec 2016 -
Operable phB PVC 0.80 W/(m2K) Cool, temperate Nov 2022 Inward opening
Operable phB PVC 0.80 W/(m2K) Cool, temperate Mar 2025 Inward opening
Operable phB PVC 0.79 W/(m2K) Cool, temperate Jun 2018 Inward opening
Operable phA Timber / aluminium 0.76 W/(m2K) Cool, temperate Oct 2015 Inward opening
Connection phB Timber / aluminium 0.64 W/(m2K) Cold Oct 2015 -
Operable phB Timber 1.00 W/(m2K) Warm, temperate Jul 2021 Inward opening
Operable phB Aluminium 0.79 W/(m2K) Cool, temperate Oct 2025 Inward opening
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