Pitched Roof U Value

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.

Pitched roof u value.

It can also be referred to as an overall heat transfer co efficient and measures how well parts of a building transfer heat. There are a few good u value calculators online that if you are short on time are worth checking out. U value requirement opaque doors 1 0 w m k. Warm roof construction is a particularly effective way of insulating complex roofs.

U value calculations to en iso 6946 xt pr insulation for pitched roofs. U value requirement roof 0 13 w m k. 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. The tables below show the suggested u values in england wales and scotland.

U value requirement windows whole window u value 1 4 w m k. This means that the higher the u value the worse the thermal performance of the building envelope. 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. U value requirement semi glazed doors 1 2 w m k.

A u value is a measure of heat loss in a building element such as a wall floor or roof. 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.