As-built Documentation

As-built documentation, trusses
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Work on existing structures begins with accurate as-built documentation. Vertical Access offers a range of documentation services, from field verification of dimensions and details to the production of complete plans, sections, and elevations.

These services include:

  • 2D and 3D photogrammetry using traditional or drone-based image capture
  • AutoCAD elevations, sections and plans
  • Field verification of dimensions in difficult-to-access locations
  • Characterization of design details
  • Ductwork and drain leader schematics
  • Production of background elevations for existing conditions surveys using TPAS®.


International Society for Photogrammetry and Remote Sensing (ISPRS)

Association for Preservation Technology Technical Committee on Documentation

Historic American Building Survey (HABS) Guide to Field Documentation