Claisse Environnement (re)makes history
With its work on the restoration of Château de Gisors, a favourite with Knights Templar specialists.
Gisors council selected CLAISSE Environnement to handle the metalwork/painting package of this major works contract, which recognises and showcases the know-how of the Bailleul metalworks.
A doubly-important contract
The title of the contract already makes its historical nature clear: “Urgent works to secure and restore the “Prisoner’s Tower”, the barbican, and the governor’s postern. Restoration of the castle complex”.
Its metalwork/painting package reflects the scale of the restored structures, featuring as it does 1 grate, 14 doors, 13 windows, 42m of floor-mounted railings, 62m of wall-mounted handrails, and 50m of floor-mounted handrails.
Technology and tradition
CLAISSE Environnement is manufacturing 100% of these parts in its Bailleul metalworks, before installing them all. They are manufactured in the traditional way and the samples for approval will be installed on site in mid-July. Firstly, a twin measurement campaign was organised, combining both 3D scanning of the site by SIng (26 points inside and out) and traditional methods, particularly using jigs. A welcome combination of techniques in a building where right angles are few and far between.
Months of work
After the samples are approved, professionals from the Bailleul workshop will manufacture all the parts over 4 to 5 months to be installed on this historical site in early 2021. So watch this space.
A closer look at 3D scanning
This technology measures the positioning, in a system of coordinates, of a multitude of points on the surface of an object. This point cloud is digitally processed to extrapolate the shape and size of the object. SADE Ingénierie is equipped with the FARO 150, a fast and accurate mobile scanner capable of processing complex structures and uneven sites.