smartwin sliding is the first certified passive house sliding door on the market. A complete encompassing air-tightness seal provides unparalleled levels of air-tightness.
Visually, the sliding door is exactly the same proportions as the smartwin window. The product was certified with an ‘phA’ rating by the Passivhaus Institute in Darmstadt.
Again, ‘phA’ rated passive house windows made by your local manufacturer.
News
28th International Passive House Conference 2026 on April 24–25 in Essen – “Transforming with Energy Efficiency!”
Two certificates were presented by Wolfgang Feist: the EnerPHit Premium certificate for the “Steiner Rindberg” project, as well as the world’s first…
Twelfth smartwin and smartshell Partner Meeting at Lorber Fenster, Austria, April 20–22, 2026, hosted by Maria, Michi and Sepp Lorber.
“Two years after the partner meeting in Nuremberg, we were able to refill our motivation tanks. Even though not all partners were able to attend, our…
28th International Passive House Conference 2026 on April 24–25 in Essen – “Transforming with Energy Efficiency!"
We are participating for the 25th time. Visit us at Booth No. 20 and discover the latest advancements of our certified EnerPHit system, smartshell…






