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Reflection

What options exist for renovating windows?

Multiple-Choice

Question

What U values can be achieved with efficient windows?

Answers

0.75 to 0.95 W/m2K.

Down to 0.5 W/m2K.

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Multiple-Choice

Question

How can thermal bridging be reduced when new windows are planned and installed?

Answers

If the window is installed within the insulation layer.

If the airtight layer is planned as far inside as possible.

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Reflection

What may happen if only new airtight windows are installed but the external walls are not insulated at the same time?

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