Energy-efficient windows present a great opportunity for
builders to save energy and thereby reduce the heating bills. The
windows also contribute to a more comfortable indoor climate and
improve the indoor atmosphere. At Rationel we offer some of
the most optimal solutions regarding energy-efficient windows and
Here you can find a lot of knowledge and inspiration about how
you can help create good energy in your customer's building. It's
about making the right choice. We have collected a number of
usefull tips and overview of terms.
We hope you find what you're looking for, but if not you are
welcome to contact us.