Electronics School Complex, Bolesławiec, Poland

Laser Cleaning Tests on Brick Façade Electronics School Complex, Bolesławiec

As part of the preparation for the restoration of the historic brick façade of the Electronics School Complex in Bolesławiec, a series of comparative cleaning tests were carried out to determine the safest and most effective method for this type of heritage material. The results confirmed that laser cleaning is the most suitable technique for delicate historic brickwork.

This method:

• does not damage the brick glaze, preserving the original color and surface texture,
• does not affect the mortar joints, eliminating the need for re-pointing,
• requires no water or chemical agents,
• produces no waste or dust,
• operates quietly, allowing school activities to continue during work,
• is minimally invasive and completely safe for the historic structure.

The tests clearly demonstrated the superiority of the laser technique compared to traditional methods such as sandblasting or chemical cleaning — both in terms of cleaning precision and preservation of the original fabric. Laser cleaning proved to be the optimal conservation solution, combining efficiency, cleanliness, and full respect for the authenticity of the material.