The design and selection of roof plant for the 9-floor commercial fit out project that we are progressing at Shoe Lane in London has been carefully considered due to the spatial limitations of the existing structure. There is less than a 100mm gap above the air handling units and 300mm at the ends. Modelling of the mechanical and electrical services was therefore crucial for co-ordination. The process that our team is following is illustrated with the use of 3 different computer-generated images. The details include the cloud point survey, the model and the model overlaid on the cloud point survey called the hybrid in various locations on the roof. A Cloud Point Survey is a way to capture a structure or an object’s exact size and shape and represent this as a digital 3-dimensional model. 3D laser scanners measure fine details and capture free-form shapes to quickly generate highly accurate point clouds. This is then overlaid with the model to provide a hybrid image to identify any clashes and the extent of spaces for access and maintenance.
