External Wall Insulation U Values

We provide u value calculations to show compliance with current building regulations standards and best practice.

External wall insulation u values.

For more information see our articles and how to videos below. What is the cost of an external wall insulation system 26th june 2020. The figures show the net u value achieved by the different external wall insulation materials that are used for thermally cladding the outside walls of our homes. The target for insulation is known as the u value and basically this shows heat loss for a given wall.

Typical u values for walls. Insulated render and u value regulations. In the domestic sector there are 3 targets that people need to be aware of. From an initial 2 05 to 2 10 u value the following can be attained.

This process uses w m k as units of measurement. For example a building with material with an r value of r 11 converts to an u value of 0 09 1 r or 1 11 0 09. U value has an inverse relationship to r value. Reference table for u values u value is the coefficient of transmission i e the transmission of heat through the materials which compose the building s envelope or outer shell.

Remember as mentioned above lower u values should mean higher resistance to thermal bridging. Primarily because a u value on its own is a. Below are the typical u values you d expect to measure within a solid wall an uninsulated cavity wall and an externally insulated wall of any kind. When it comes to choosing an external insulation product for your property most homeowners mistakenly believe that external wall insulation u values should play a predominant part in their decision making.

9 inch solid brick 10mm plaster. These can be supported with a detailed report. External wall insulation u values.