Linear and point thermal bridges

Product	InstalSystem 5
Type of article	FUNCTION AND TOOL
Source for translation	2025-04-22

DESCRIPTION

This article describes methods of accounting linear and point thermal bridges in thermal calculations of partitions and building structures.

LOCATION IN THE PROGRAM

The selection of the Thermal bridges calculation method is available in the General data window, Calculation standards and options tab.

1. Thermal bridges calculation method.

EXAMPLE OF USE

Scenario I - Simplified method of accounting linear thermal bridges

1. Editing the default data:
   • In the General data window choose Simplified for the Thermal bridges calculation method. Note: this method is available for the EN standards;
   • (Optionally) Set auto mode for the Manner of making allowance for thermal bridges. This causes the "auto mode" status to be set for all fields of the ΔUtb (Allowance for thermal bridges) column, available on the form Building structure / Building (rooms view), with the following default values:
     - ΔUtb = 0.05 W/(m²·K) for the external partitions (EW, EWi, ED, EF, RO) or in contact with the ground (WG, FL);
     - ΔUtb = 0.00 W/(m²·K) for the internal partitions (IW, IF, ID, IWi):

2. ΔUtb column with "auto mode" status.