Pitched Roof U Value

The tables below show the suggested u values in england wales and scotland.

Pitched roof u value.

Final thing you should pay attention to when adding pitched roof insulation is the quality of the chosen insulation material through bba certificates and its ability to conform to the values prescribed by applicable building codes. U value calculations to en iso 6946 xt pr insulation for pitched roofs. A u value is a measure of heat loss in a building element such as a wall floor or roof. If your home was built pre 1967 and has an old attic room or loft conversion a great way of achieving this level of insulation is through our specially designed eco roof.

It can also be referred to as an overall heat transfer co efficient and measures how well parts of a building transfer heat. U value requirement semi glazed doors 1 2 w m k. Warm roof construction is a particularly effective way of insulating complex roofs. There are a few good u value calculators online that if you are short on time are worth checking out.

An uninsulated roof has a u value of approximately 2 5 w m2k however adding insulation can achieve a value of 0 18 w m2k. U value requirement roof 0 13 w m k. Insulating above or above and between the roof timbers ensures that the structure is kept at or near the internal environmental conditions reducing thermal stress and condensation risk. This means that the higher the u value the worse the thermal performance of the building envelope.

U value requirement windows whole window u value 1 4 w m k. The required u value will depend on the location of the project england scotland or wales type of building domestic or non domestic and the application floor wall or roof.