Energy efficient construction is the order of the day. Increasing customers’ demands on design and sustainability is the result. It’s not surprising that Roto as the professionals brand and inventor of the successful premium top-hung roof window supplies the answer to the future challenges regarding energy efficient construction right up to ‘Low-E’ (passive) housing construction methods.
The challenge: a symbiosis of maximum functionality and fascinating design
Our vision: a low-energy roof window that equally combines rationality and emotion, high-tech and design.
The answer: The Roto Designo R8, a real top-quality product with 1.2 - 0.84 W/m²K Uw value (depending on glazing and material) and premium quality ‘Made in Germany*’.

* Over 90% of our products