Window system solutions

Leitz recognizes market trends. The company has strong relationships with renowned testing institutes and manufacturers of fittings and seals, which means we know what is important when it comes to window construction. Leitz uses this resulting know-how with project partners in the joint development of window and door systems and passes this specialist product knowledge on to its customers.

In order to meet and exceed international requirements, Leitz develops standards for modular window and door systems.

With the ClimaTrend Style, Leitz presents a window system that can be produced economically and fully complies to the market requirements, with slim design and for passive house installations.

Leitz ClimaTrend Style — ClimaTrend Style

Minimised timber sections
Overall width less than 100 mm
Desirable glass to frame ratio
Various material and colour options for interior and exterior profiles

Modular design of different materials
Reduced cutting depths
Standardisation of the production steps for wood and wood/aluminium systems
PlugTec corner joint (optional dowel construction or slot/tenon)

High thermal ratings for energy efficiency and suitable for passive house installations
Protection against noise, weather and burglary
Glass thickness up to 70 mm
Tested and certified to current regulations

With strong project partners and technology leaders, a globally unique sliding window and sliding door system was developed. Patio Inowa combines easy handling, high tightness and attractive design for parallel sliding doors and -windows. The clever technology also allows straight, narrow profiles in a modern design.

Patio Inowa window & sliding door system

Slim design due to narrow frieze widths
Large glass to frame ratio through floor-to-ceiling glazing
Clever technology – no hinges visible on the sash
Solution for sliding doors and -windows
Frame materials wood and wood/aluminium

Modular construction principle for various material concepts
Same basic profiles as for standard market wood/aluminium window systems
Optimization for single part production on CNC machining centres

High density due to horizontal closing mechanism for optimum seal pressure
Maximum handling comfort and high functionality
Tested elements

With the tested ClimaTrend system from Leitz, both wood and wood-aluminium systems can be produced flexibly and economically. The construction is available in wood thicknesses IV68 to IV106 and have future-proof technical features in the areas of thermal engineering, noise protection and safety.

Design as wood or wood/aluminium system
Different wood thicknesses from IV68 to IV106 possible
Can be manufactured on all conventional machines to CNC throughfeed machines

Increased performance compared to conventional systems by increasing the distance between the wind and rain barrier to 32 mm
Wood thicknesses IV68, IV78 (80) and IV90 (92), IV106 and 13 mm fittings provide security

With the IV78, 3 functional window panes up to 40 mm can be used as standard
Panes up to 52 mm thick can be used with the IV90
Best value Uw = 0,76 W/(m²K) for wood thickness IV90

PlugTec, the corner joint from Leitz, combines the advantages of conventional joints in one system. Due to the dowel-less production on CNC machines, the production is efficient and cost-effective and the application is flexible. With its approval for the highest weight class of 180 kg, PlugTec is an ideal solution for window manufacturers, architects and building owners.

Leitz frame corner joint PlugTec — Frame corner joint PlugTec

Tested and approved for sash weights up to 180 kg, from a wood thickness of 78 mm (Testing Institute IFT Rosenheim)
Precise and form-fit frame corner joints by using milled slots and tenons
Significantly higher load-bearing capacity than conventional corner joints such as counter/dowel or slot/tenon joints
Optimal solution for particularly narrow frieze widths

Cost-effective production in one workpiece clamping on the machine
Material savings due to no additional connecting elements
Saves time by shortening the entire production process
Optional saving of the frame press by using of a screw connection for the gluing process