New MIRA TWT timber-aluminium window

Gutmann Building Systems and the tool manufacturer Zuani TWT have jointly developed a new timber-aluminium window. A complete window can now be built with a 68 × 68mm timber cross-section – even in RC2. MIRA TWT will be launched in March 2021.

Complete timber and timber-aluminium window in 68 mm timber width

The new window system has a timber width of just 68 mm throughout. The face width is 110 mm in the double rebate. The special innovation: the fabricator can build a complete window with the 68 × 68 mm timber cross-section. Frame, sash, transom or set timber – all components can be designed in 68 mm. All standard opening types and window shapes are possible. Due to the higher proportion of glass and the narrow face widths, Mira TWT can score points with improved U-values. The burglar resistance is categorised as class RC 2. Tests are currently being carried out for resistance to driving rain, wind load, air permeability and impact resistance, and at least the standard values will be achieved here.

About the product

Consistency through to pure timber windows

For the first time, it is possible to produce a timber width of 68 mm at the bottom of the frame – including professional installation of an aluminium window sill – even in the classic timber window sector by means of a new design of the Gutmann Spree TWT rain protection rail and a window sill rebate of 30 mm.

Low additional investment required

The optimised profile geometry for CNC machine technology and optional glass bonding for large elements are characteristic of the production of the new window. Instead of the previously used rotary holder, a clip holder is now used. The Mira TWT sash only needs to be clipped on, eliminating the need to turn it 90° during installation. The fabricator does not need to make any major investments for production in the workshop and can work with extensions to the tool inventory. As a result, no special training is required; the system is self-explanatory, so to speak. "We are clearly on trend with the new system," says Martin Rauscher, Managing Director of Zuani TWT, "we are convinced that the market will accept the new system well – we have already received enquiries from users."

The experts from both companies have pooled their respective expertise and the result is the new Mira TWT, whose very name symbolises the joint development. Rauscher: "For us, the new timber-aluminium window is another milestone in over twenty years of cooperation with Gutmann, which has already resulted in innovations in rain protection rails and sash cladding profiles in the past." Gutmann Managing Director Arnd Brinkmann reports on enquiries that are now being answered with the new development: "With this innovation, we are responding to market requirements. Investors, planners and customers from the trade have approached us with the desire for a system with more glass surface, a slimmer design and very good technical values, which can also be used for large static elements and in new builds and renovations."