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U values measure the thermal efficiency of buildings. The lower
the U value the more thermally efficient a building is.
Timber frames generally have a U value of 2.0. Single glazing has
a U value of 5.8 and standard double glazing has a U value of 2.2.
With a greater emphasis on preserving energy, glass companies have made significant improvement in the overall thermal
efficiency of conservatories and it is now possible to get glass
with U values as low as 1.1. This means that today you can have
a conservatory which is 500% more thermally efficient than a
single glazed one. |
