Bauder’s BauderEXTENSIVE LIGHTWEIGHTsedum system is an extensive green roof build-up suitable for flat and low-pitch roofs, designed to support low-maintenance vegetation and contribute to passive environmental performance. The substrate, moisture retention, and filtration layers meet recognised FLL green roof guidelines, and when installed over appropriate waterproofing can achieve fire performance to BROOF(t4) under test conditions verified as part of the Bauder system.
The wider family of Bauder roof systems, including green roof build-ups, is covered by British Board of Agrément (BBA) certification, and Bauder’s product range participates in third-party assessment frameworks such as CCPI to provide verified product information to specifiers.
The system helps moderate thermal performance, attenuate rainwater, and protect the waterproofing membrane, supporting longer service life and reduced maintenance.
