By Ian Wilson, Bsc hons, Pdip, AIA, RIBA, RIAS, Principal, TK Architects International
Laser Building Surveying, 3D model example
If I could name one major source of construction change orders in renovation or remodeling of existing buildings, it would have to be the surprise discovery of actual built conditions not matching the available as-built drawings.
Of course we could send an architect and engineers to survey a property and expect to catch all as-built discrepancies from the drawings. Of course the general contractor is to visit the site and become generally familiar with the conditions under which the work is to be performed. However, the reality is that a human being cannot economically guarantee a survey of the existing conditions. (more…)