U-value Calculations

Comfort Solutions Ireland offers a professional U-value Calculation and Condensation Risk Analysis service to all our customers. All calculations and analysis are presented in great detail, complete with diagrams and reports. We will provide the above in pdf format, making it easy for our customers to read or print as desired. We generally offer this service free of charge to customers already purchasing products or services from Comfort Solutions.



U-value printscreenWhen selecting materials for construction, we should choose good insulators throughout to ensure comfort within the building and low heat energy losses.

We usually calculate a U-value for a particular structure element, eg. a cavity wall, rather than for the individual components that make up that element, eg. block, insulation, air gap, block, etc.

The figure used to demonstrate the element’s resistance to heat loss is called the U-value. It refers to Unit Heat Loss Rate , and its unit is the watt per metre squared per kelvin, W m-2 K-1.

The U-value is defined as the rate at which thermal energy is conducted through unit area, per kelvin temperature difference between its two sides, ie. how much heat will pass through one metre squared of a building element when there is a temperature difference of 1 degree kelvin between the two sides of that building element.

A good insulating structure therefore has a low U-value. Some typical U-values in new buildings today are:

Walls: 0.21

Roofs: 0.16

Floors: 0.21

Contact us today to have a U-value calculated for any part of your structure. We will send you your detailed calculation and report in pdf format.