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U-Value Measurements with greenTEG's U-Value Kit

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Published on Dec 1, 2015

In the field of building physics, U-Value is the term used to describe the heat transfer coefficient of a building element (e.g. of a wall). The U-Value describes the insulation quality of a building. The unit of the U-Value is W/(m²K). The smaller the U-Value, the better the insulation quality of the building element.

Currently one of the most used methods for determination is the U-Value calculation method using so called U-Value Calculators. But does not produce an accurate, real U-Value, only an approximation.

But how to measure the U-value? Our measurement-approach uses a Heat Flux Sensor and two temperature sensors (see image below). This approach is standardized in ISO 9869, ASTM C1046 and ASTM C1155. This is the only method which delivers reliable quantitative in-situ information about a building envelope.

Read about a U-Value measurement with our gSKIN® U-Value KIT on the following link: http://u-value.greenteg.com/

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