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3D Laser Scanning for Historic Preservation

by Michael Croft on November 9, 2017 in 3D Scanning, Blog

3D laser scanning for historic preservation is a crucial task for project success. It’s an accurate way of determining the structural damages and required repairs. In addition, engineers will have an easier time visualising the whole project (which aids in better planning).

Historic churches and commercial buildings are a permanent part of many communities now. Their restoration is vital to preserving the legacy and history. It’s also a challenging task because these projects have a different set of requirements compared to construction of new buildings.

Why historic preservation is different

First, historic buildings have a different architecture and sets of materials compared to modern ones. The different designs are due to the trends at the time and the ongoing evolution of architecture. The materials used back then could also be different. Today, we have glass, aluminium and stainless steel for construction. Back then these materials might not be available (or if they are, they’re only available in short supply).

That’s why historic preservation requires a different treatment. Old buildings might have complex surfaces and inaccessible environments. In addition, there might be a few ruined parts that make surveying a challenge.

Why 3D modelling is valuable

In other words, traditional surveying methods might not suffice for accurate documentation and planning. On the other hand, 3D modelling can produce accurate and complete data. This is possible because laser scanning produces a point cloud (millions of data points). As a result, the render would even show the texture of various surfaces.

This makes planning and collaboration faster and easier. Engineers and stakeholders can quickly view the resulting 3D render. They can also view the 2D model for flat visualisation and evaluation.

With the 3D render, they can instantly see where the structural damages are. They could then initiate repairs and improvements. After the project, another 3D scanning might be performed for quality control. Engineers and surveyors would check if the restoration made is in accordance with the original design plans.

3D laser scanning for historic preservation

Here at Geosurv, we perform high definition survey of historic buildings. We measure up to billions of points to produce a point cloud. After processing the data, we can provide you with the 2D and 3D model of the site.

Contact us today and we’ll provide you with a fast and accurate surveying service. We service Sydney, Canberra, Wollongong, Newcastle, Adelaide, Cronulla and Gold Coast.