The Château des ducs de Bretagne is the emblematic monument of its region. With structures dating back as far as the 15th century, managing such a historic site comes with a unique set of challenges. It also calls for a big focus on the over 1.4 million annual visitors and 80 employees.
The hidden challenge: Radon
Because the castle is constructed from granite and situated in a granitic region, the team faced a natural but serious challenge: radon levels in several rooms. Sébastien Loiret, the building technician at the castle since 2024, knew they needed a robust monitoring solution.
Preserving the past, monitoring the present
In a protected historical monument, you cannot simply drill holes through ancient walls to run cables. This led Sébastien Loiret to Airthings.
My favorite thing is is the wireless aspect because I work in a historic monument and I can’t break through historical walls, says Sébastien.
Data-driven peace of mind
Today, 13 wireless sensors are distributed across offices and public areas. The installation was seamless, and the data is now more accessible than ever:
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For Management: Centralized dashboards allow for real-time monitoring of the building's climate.
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For Employees: Staff can check the air quality in their specific work zones via dedicated links or QR codes in breakrooms.
Through this blend of 500-year-old architecture and 21st-century air quality monitoring, the Château des ducs de Bretagne ensures that history is preserved while the people within it remain safe.
