6 facade zones mapped
Each with its own condition report and repair priority
Heritage · Boston, United States
Mapping a century of weathering before a phased stone repair
A museum needed accurate facade and interior documentation ahead of a phased stone repair programme, but decades of weathering had left cracking and staining that no existing survey had ever mapped systematically.
Project facts
Scope, software and timeline at a glanceLocationBoston, United States
SectorHeritage and culture
ScopeHeritage BIM, condition mapping
Level of developmentLOD 350
SoftwareRevit, rectified imagery
Facade zones mapped6
Access methodGround and elevated scan positions
Delivery time8 weeks
Project overview
Mapping a century of weathering before repairs were priced
A museum needed accurate facade and interior documentation ahead of a phased stone repair programme, but decades of weathering had left cracking and staining that no existing survey had ever mapped systematically.
We modeled the building envelope and key interior spaces from scan data, then produced rectified orthographic elevation images with condition notes mapped directly onto them so the conservation team could specify repairs zone by zone.
Access to upper facade zones was arranged by cherry picker, avoiding the cost and disruption of a full scaffold survey.
This project was delivered through our heritage BIM modeling service. See more heritage and culture work on our industry page.
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Inputs and deliverables
What we received and what we handed back
A clear record of the data that came in and the files that went out.
Project inputs
- Ground based and elevated scan positions across 6 facade zones
- No previous condition survey on file
- Museum trust repair sequencing priorities
- Cherry picker access arranged for upper facade zones
Deliverables
- Facade and interior HBIM model
- 6 rectified orthographic elevation images
- Condition mapping and repair priority notes per zone
- Measured drawing set for the repair specification
- Baseline record for future condition monitoring
Key outcomes
One document driving the whole repair sequence
No scaffolding required
Full elevation survey completed from ground based and elevated scan positions
8 weeks delivery
From first scan to the final measured drawing and condition set
Business impact
A limited repair budget spent where it matters most first
The museum trust now has a prioritised, evidence based repair sequence instead of reacting to visible damage, letting a limited conservation budget be spent on the zones that need it most first rather than the zones that are simply easiest to see.
Repair budget prioritised by evidence, not guesswork
Baseline condition record established for future monitoring
Supported a phased, budget matched repair programme
“We finally have one document that shows exactly where the stone is failing and in what order to fix it.”
TWT. WhitcombeFacilities Director, Museum Trust
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