The theory of heat loss is based on the thermal conductivity of a material and how thick it is. However, materials are not always as homogenous as they appear and may degrade over time.
There are lots of ways of calculating and measuring the thermal conductivity (or u-value) of a building element.
Samples of materials can be tested in a laboratory, but where this isn't possible we can use our sensor package to determine the u-value on site.
On-site U-value measurements are carried out in accordance with ISO 9869-1:2014
The measurement process takes between 3 and 7 days, depending on the internal and external conditions.
Please get in touch if you have a project that would benefit from testing