Thermal Bridge Calculator

Analyse thermal bridges at building junctions. Select from 59 pre-calculated junction types, evaluate psi-values, and check compliance against international standards.

EN ISO 10211 · BR 497 · BRE IP 1/06

Select Junction Type

Configure Parameters

Insulation Thickness100 mm

50 mm300 mm

Insulation Type

Junction Length (m)

Heating Degree Days (HDD)

Insulation Strategy

Continuous Insulation

Insulation wraps unbroken through the junction. Best thermal performance.

Insulation with Break

Insulation is interrupted by a structural element (slab, beam, column).

Partial Insulation

Insulation covers only part of the junction (e.g. internal face only).

Select a junction and calculate to see results

Thermal Bridge Calculator

Select Junction Type

Slab-on-Grade Edge Insulation

Slab-on-Grade Under-Slab Insulation

Suspended Ground Floor

Concrete Intermediate Floor/Wall

Timber Intermediate Floor/Wall

Cantilevered Balcony — No Thermal Break

Cantilevered Balcony — Thermal Break Strip

Balcony with Isokorb-Type Connector

Basement Wall/Floor Junction

Garage Ceiling to Heated Room

Configure Parameters

Insulation Strategy