Thermal Bridge Estimator

Combine plane, linear, and point heat-loss coefficients in a transparent local model.

Concept estimate only: this tool does not assess code compliance, condensation or moisture risk, HVAC sizing, energy bills, constructability, or construction performance. Geometry, boundary conditions, junction definitions, and coefficient sources must be established by qualified professionals.

Model settings

Input/display unitsScenarioIndoor design temperatureOutdoor design temperatureOptional hours

Advanced: allow negative ψ/χ coefficients; I understand cancellation and double-counting risks and will verify coefficient conventions.

Plane element

Linear bridge

Point bridge

Portable project

Import JSON

Scenario results

Add elements and calculate.

Baseline vs improved

Formulas

H_plane = A × U; H_linear = L × ψ; H_point = χ; Q = H_total × |Tᵢ − Tₒ|; E = Q × hours / 1000.

Thermal Bridge Estimator

Model settings

Plane element

Linear bridge

Point bridge

Portable project

Scenario results

Baseline vs improved

Formulas

Heat-loss terms

Coefficient contributions

Model observations

Exports