Innovation provider

Lasita Aken AS


Diana Leib
+372 53 459 663
Head office and production:
Tähe 116
51013 Tartu
Tel. +372 7 362 791


New energy saving window is inward opening and German-type. The thermal conductivity of the window is 0,87 W/m2*K. It has two sash seals and seal under the glazing bar. Also a micro-ventilation and one safety point. Product is CE certified.
The company is looking for: manufacturing agreement, commercial agreement with technical assistance, technical co-operation.


New Energy Saver windows have excellent quality and help to improve the energy efficiency of the buildings. Main technical features are:
  • Wooden parts are made of solid wood material glued together from three or four droppers;
  • To avoid thermal bridges the wooden section from exterior surface to glass unit is 20 mm;
  •  20° inclination and 6-8 mm radius give the product a softer image;
  • To ensure UV-resistance the products are finished with water based mediums in four coat system: impregnation, undercoat, mid-paint (azure) and external paint (azure);
  • To ensure weather and water resistance the wooden parts are covered from outside either with aluminium water bars (wooden products) or with aluminium in full scale (wooden-aluminium products);
  • Fittings chamber with advanced safety. Standard solution includes  one safety point and micro ventilation;
  • Elastic seals are made of silicone and rubber mixture to ensure tight closure of frame and last for many years;
  • Glass units are fixed in wood welt with overlapping glass bars equipped with bottom sealing. Glass bars are fixed with hidden nails;
  • Glass units are tightened with silicon in neutral colour around perimeter;
  • Energy saving glass helps to meet the required U-value. Combined glasses are used to give several features to one glass: energy saving, sun protection, safety, noise reduction and/or self cleaning. To ensure advanced noise reduction, laminated glasses with special noise reducing film are used.

Innovative aspects (ecologic, social and economic)

Environmental aspects:
Main environmental aspects are related to improving energy efficiency of the buildings and decreasing overall energy demand and greenhouse gas emissions. The materials used in producing windows are not harmful or toxic and usually recyclable.

Social aspects:

Wood and wood-aluminium windows help to establish a good and healthy indoor environment. The company also takes care of the environment and safety at work to create pleasant work conditions for employees.

Economic aspects:

Energy saver window is slightly more expensive than other windows of same size. When ooking at the lifetime of a window which is about 20 years the difference disappears because good windows save in energy consumption and also help to create a healthy and pleasant indoor climate. A good indoor climate is important to humans and especially for children and elderly people.

Application examples

Examples of application of the technology: windows are used everywhere – in public buildings, residential and in apartment buildings. Products are already on Baltic and Scandinavian market. Central and western Europe has been unreachable so far.


Energy saver window is slight more expensive than other windows at same size. Looking at the lifetime of a window which is about 20 years than the difference disappears because good windows save in energy consumption.


Current stage of development

Already on the market
Exported to other countries 

The enterprise has representatives in Estonia, Latvia and Russia. Most of the production is sold on Estonian market, but it is also used by prefabricated and log house producers who export their production to Scandinavia and other European countries.

Intellectual Property Rights

Country of origin


Country of application

Lithuania, Estonia, Sweden, Finland



National Contact Point

Antti Roose
Tartu Ülikooli, Geograafia Osakond
Vanemuise 46
51014 Tartu

Tel: +372 737 6841
Fax: +372 7375825