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VentilationDiagnosticsThermal scan
Transcona Ice Dam Correction
Two winters of interior staining that three previous contractors treated as a shingle problem. It was never a shingle problem.
- Location
- Transcona, Winnipeg
- System
- Ventilation rebuild + eave protection
- Scope
- 28 squares
- On site
- 2 days
- Completed
- 2024
The challenge
Bathroom fans terminating in the attic, blocked soffit intake, and R-24 insulation compressed under a walkway of stored boxes.
What we specified
Ducted both fans through the roof, installed 34 continuous intake baffles, blew attic insulation to R-60, and carried membrane 1.2 m up the slope.
The outcome
Zero dam formation the following winter, verified by a February thermal scan at no charge.


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