TERRABONAA well-planned project starts with documentation: elevation drawings, glass type, height, joint condition and cleaning history.
Environmental assessment follows: space available for exclusion zones, pedestrian movement, neighbouring buildings and airspace restrictions.
The trial area is critical. It establishes the realistic result and prevents misunderstandings about issues that are permanent degradation rather than contamination.
Finally, handover is not only visual. It includes documentation of conditions, methodology and recommendations for the next maintenance cycle.