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Thermal survey of underfloor heating

A client needed to drill holes in the marble-tiled concrete floor of their main reception – and any surrounding areas – which contained underfloor heating pipework.

In order to commence this drilling safely and to avoid any potential damage to the pipework, Metropolitan’s TEGG service division was deployed to conduct a comprehensive thermal analysis of the underfloor heating in order to identify the pipework’s location.

The Metropolitan solution

The survey was carried out over a weekend in order to minimise the usual busy pedestrian traffic through the main reception area. This allowed TEGG to conduct a proper analysis of the floor. Once on-site, the technicians ensured all appropriate permits were in place and secured the area with a barricade to restrict public access.

The technicians began the survey by locating the positions of the manifolds and the zones which the manifolds controlled. Following this, they liaised with the on-site staff to turn on the heating.

The technicians consequently monitored the pipework closely as the temperature increased. Once the temperature had stabilised, thermal and digital images were taken to determine the positions of the pipework.

The positions were subsequently drawn on the tiled floor using a whiteboard marker and high-visibility tape. This allowed the technicians to take precise measurements from a fixed point in the reception to the markers and tape – ensuring the client’s drilling contractors knew the pipework’s exact location.

Once all the positions of the underfloor heating pipework were located and measured, a detailed drawing was created for the client as result, and the process was repeated for the remaining areas in the building also containing the pipework.

Upon completion of the works, the area barricading was removed, the on-site staff were notified, and the permits were closed off. The client commenced their drilling works with all the necessary information they needed to do it safely and securely.