A world first from Genk – a second-hand roof  | Het Belang van Limburg
Made in Limburg - The Genk-based family-run company Tectum has just completed a roof renovation that ranks as the world’s first, fully circular flat roof. Patented system components actually allow the entire roof to be disassembled and reused, creating a ’second-hand roof’ that will no doubt be emulated elsewhere in the world.
Source: hbvl.be