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As with the current energy standards, there are two requirements concerning thermal insulation.
We note that the requirements have become much tighter for windows in particular. The use of high insulation glazing is becoming the norm.
In practice, this means that it will be necessary to use glazing with a U value of between 1.3 and 1.1 W/m2K, which is already the case in more than 50% of new homes.