SkorstensFolket’s partner Kanaltätning i Göteborg AB has been engaged several times to reduce radon values in Swedish properties. An illustration of this is the radon remediation work that Kanaltätning performed for the Gånghester housing association. Sealing the ventilation ducts improved air circulation and the radon concentration fell below the Swedish limit value of (<200 Bq/m3).
The ventilation ducts were sealed in five buildings, with 15 apartments in each of the buildings. In addition, suction boxes and fans were installed. Relining with FuranFlex (dimension ø125 mm) was a key element of the project and the total length of the duct that was sealed was approximately 1,200 m.
Radon reading before duct sealing, average value:
Radon reading before duct sealing, highest measured value:
Radon reading following duct sealing:
At the conclusion of the project, all the apartments had a radon concentration below the Swedish limit value of (<200 Bq/m3).
Kanaltätning i Göteborg AB operates primarily in western Sweden and its staff are certified to install FuranFlex and VentilFlex.