a window family is introducing itself ...
smartwin is the art to make pretty windows.
smartwinは、パッシブハウスウィンドウのメリットをすべての人に身近にするために生まれました。smartwinは独自の職人技、手の届く価格、最高の設計基準が特徴です。
smartwinは、パッシブハウスウィンドウのメリットをすべての人に身近にするために生まれました。smartwinは独自の職人技、手の届く価格、最高の設計基準が特徴です。
smartwinの創設者は、ビジョンを実現するために様々なモデルを設計しました（smartwin、smartwin-sliding、smartwin-historic、smartwinエントランス、smartwinソーラーなど）。 すべてのバリエーションは、パッシブハウスに必要な基準に準拠しています。 性能はパッシブハウスインスティテュートダルムシュタットのヴォルフガングファイスト博士の証明書によって確認されています。 欧州パートナーの協力により、smartwinが多くの地域に広がっています。 専門家のコミュニティの結束の固さと知識の統合は、smartwinテクノロジーをさらに発展させる強力なエンジンです。 smartwinの製造では、選択された材料は断熱性が高いだけでなく、デザイン性、実用性においても高いパフォーマンスを発揮します。 再生可能な素材を使用することで非常に環境に優しいものになっています。
smartwin - less energy saves more!
Uw-Value, g-Value, Frame Width – Three Key Factors for a Good Energy Balance!
A good window does more than keep heat inside. It also lets the sun heat our homes. That is why the energy performance of a window depends not on a single value, but on how several properties work together. The Uw-value describes the heat loss through the entire window. The lower, the better. However, it depends on the window size and glazing. We therefore prefer to work with the Uf-value, as it describes the thermal insulation performance of the frame independently of the glazing and window size.
The g-value indicates how much solar energy passes through the glass. With g = 0.60, it is 60%; with g = 0.40, only 40%. That means 50% more free solar heat! In winter, these solar gains reduce heating demand. Frame width determines how much glazing area is available. Slim frames allow more solar heat, daylight and views. The window industry has paid too little attention to this aspect in recent years. After all, isn't the original purpose of a window to let light into our homes? A wide frame allows neither daylight nor solar heat to pass through and can therefore worsen the energy balance. In summer, external shading protects against overheating. This way, we use the sun when we need it and block it when it gets too warm. smartwin combines excellent thermal insulation with high solar gains and exceptionally slim frames. Because what really matters is the overall energy balance of the window.
Im Sommer schützt eine außenliegende Verschattung vor zu viel Sonne und Hitze. So nutzen wir die kostenlose Sonnenwärme im Winter und halten sie im Sommer draußen.
smartwin verbindet hervorragende Wärmedämmung mit viel kostenloser Sonnenwärme. Besonders schlanke Rahmen schaffen mehr Platz für Glas und lassen dadurch mehr Sonnenenergie ins Haus. Denn entscheidend ist nicht ein einzelner Wert, sondern wie gut das gesamte Fenster hilft, Heizkosten zu sparen.
smartwin certified three times as a system smartwin certified twice as a system
ニュースレター「Certified Passive House Components-1/2018」は当社のテクノロジーの先進性を示しています。
私たちの実績のあるsmartwinは、切望された新しいトロフィーを受け取る最初のウィンドウシステムです。
smartwinエントランスは、寒冷地向けのドアシステムとして認定された最初の玄関ドアでもあります。
smartwin solar は、2022 年に窓システムとしての認定を受けて、これに続きます。
Three in one go ...
A good window needs an equally good shell. The only thing missing in the renovation is the appropriate ventilation.
2023 and 2024 Sepp Lorber and Franz Freundorfer designed a new prefabricated standard element for the serial renovation of small-scale exterior walls. This base element can be filled with various insulation materials and is finished externally with a plaster layer or a wooden facade. The windows already include the exterior reveals, the windowsill, and optionally, the shading. All these elements are installed in the window manufacturing process. The integration of the proprietary ventilation system smartvent will be completed later this year.
Naturally, there is also a version available for large-scale exterior wall sections. Both versions can be combined in smartshell reno.
Further info at smartshell reno - three in one go or at www.smartshell.de
Videos
News
29th International Passive House Conference 2026 in Innsbruck on April 2–3, 2027: “Energy efficiency unites”
We are taking part for the 26th time. Visit us at booth no. 1.
This year, our motto is: “Modernizing our buildings demonstrably saves money – so…
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…
