What is the effect of a thermal bridge?

Heat seeks its way from the heated room to the outside. It follows the path of least resistance.
A thermal bridge is a localized area of the building envelope where a changed (usually increased) heat flow occurs compared to directly adjacent areas (assuming a temperature difference between inside and outside).

Effects of thermal bridges are:

-Changed, usually reduced internal surface temperatures; in the worst case this can lead to moisture penetration of building components and mould growth.
– Changed, usually increased heat losses

Both can be avoided in a passive house: The surface temperatures are then so high everywhere that there is no longer any critical moisture load – and the additional heat losses become negligible. If the thermal bridge losses are smaller than a limit value (set at 0.01 W/(mK)), the detail meets the criteria for “thermal bridge-free design”.

Welcome to ENERsign® Price Configurator with U-Value window Calculation:

You don’t want to go through the trouble of obtaining various offers, but would like to find out the recommended prices and U-values for our high-quality ENERsign®primus window? Then try our price configurator, here you can put together your desired windows as you wish and try out different sizes and designs.

All you need is the desired dimensions and window types and you can configure immediately. The window price and U-value window will be adjusted automatically, so that you always have an overview and can compare directly.

We are uncompromising in the product we offer:
ENERsign®primus elements with at least triple glazing with a U-value glass of 0.52 W/m²K and a g-value of 53%. Other designs and special glasses are available on request.

Welcome to the ENERsign® U-Value window configurator:

The U-value window is also called heat transfer coefficient and according to the standard DIN EN 10077 it indicates the amount of thermal energy lost through a window to the outside.

The U-value window is calculated using the formula W/(m²K), i.e. watts per square metre and Kelvin. This value refers to the entire window and defines the amount of energy per unit of time that flows through an area of one square meter when the air temperature on both sides differs by one Kelvin. The lower this value is, the less energy or heat the window emits.

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Gesamtpreis (inkl. 19% MwSt)
0€ - 0
Potentially avoided CO2 emissions over 30 years :
Potentially saved energy and CO2 costs over 30 years:
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0 (W/m2K)
Please add a product to configure it.