Examples
Examples
Try the starting example
- Thermal frame lengths (m)
- 4,4,2
- Frame exposed widths (m)
- 0.04,0.04,0.05
- Envelope area (m²)
- 20
- Measured overlap area at frame intersections (m²)
- 0.01
- Thermal bridge projected area (m²)
- 0.41
- Projected bridge area fraction
- 0.0205
Try another scenario
- Thermal frame lengths (m)
- 5.0,4.0,2.0
- Frame exposed widths (m)
- 0.04,0.04,0.05
- Envelope area (m²)
- 20
- Measured overlap area at frame intersections (m²)
- 0.01
- Thermal bridge projected area (m²)
- 0.45
- Projected bridge area fraction
- 0.0225
Calculation method
Calculation method
Thermal bridge projected area (m²)
Area=sum(length×width)-entered intersection overlap; divide by envelope.
Projected bridge area fraction
Area=sum(length×width)-entered intersection overlap; divide by envelope.
Symbols and units
- a
- Thermal frame lengths (m)
- b
- Frame exposed widths (m)
- c
- Envelope area (m²)
- d
- Measured overlap area at frame intersections (m²)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Calculation steps and notation
sum(list) adds all entries in the list.
Assumptions & limits
Assumptions & limits
- Projected area tally only; no U-value, condensation or two-dimensional bridge simulation. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Projected area tally only; no U-value, condensation or two-dimensional bridge simulation.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.